Ionian Islands Climate

Last updated: January 18, 2025

The Ionian Islands of Greece experience a Csa climate, characterized by hot, dry summers and mild, wet winters. During the coldest month of January, temperatures can dip to a chilly -2°C (29°F), while the warm summer months see averages rising to a comfortable 18°C (65°F), peaking at an impressive 35°C (95°F) in July. This significant temperature variation underscores the region's climatic diversity, making the Ionian Islands an intriguing destination for those seeking to understand the balance between seasonal extremes.

Ionian Islands temperature by month

The temperature patterns in the Ionian Islands, Greece, exhibit distinct seasonal trends, moving from the chill of winter to the warmth of summer. January starts the year with minimums reaching -2°C (29°F), averaging around 12°C (53°F), and slightly warming by February with temperatures rising to 2°C (36°F) at night. As spring approaches, March and April present a gradual increase, with daytime highs ranging from 20°C (68°F) to 28°C (82°F), facilitating a transition into the warmer months. May marks a significant leap, showcasing minimums of 11°C (52°F) and maximums of 30°C (86°F). The summer sees July and August reaching their peak temperatures, with averages soaring to around 25°C (77°F) and maximums peaking at 35°C (95°F) and 34°C (94°F), respectively. As autumn unfolds, temperatures begin to decline, with October holding averages around 21°C (69°F) and November and December transitioning back to cooler conditions, capping the year with minimum temperatures around 3°C (38°F) and averages of 14°C (58°F). This cyclical variation not only defines the climate but also enhances the region's charm throughout the year.

Monthly Temperatures in Ionian Islands, Greece

The chart illustrates Ionian Islands's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec535556596672777975696457
Data source: Ionian Islands temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

The climate in the Ionian Islands of Greece features mild winters and warm summers. In Lefkada, temperatures range from a chilly minimum of 1°C (35°F) in January to a warm maximum of 31°C (87°F) in August. Similarly, Corfu experiences a minimum of 1°C (34°F) in January and reaches a peak of 31°C (88°F) in August. Zakynthos, slightly warmer in winter, has a minimum temperature of 4°C (40°F) in January, with summer highs reaching 30°C (87°F) in August. For more detailed monthly temperature data, you can explore the links for Lefkada, Corfu, and Zakynthos.

Precipitation Patterns in Ionian Islands

Precipitation in the Ionian Islands showcases significant seasonal variability, with the wettest months falling during the fall and winter. January leads the charge with 164 mm (6.5 in) of rainfall over 13 days, followed closely by November, which sees a substantial 263 mm (10.4 in) across 14 days. December also contributes to the wet season, delivering 238 mm (9.4 in) of rain over 17 days. The early months of the year, including February and March, experience moderate rainfall as well, with 121 mm (4.8 in) and 91 mm (3.6 in), respectively, indicating a steady decline into spring.

As the seasons transition to summer, precipitation markedly decreases, with July and August recording minimal rainfall at just 11 mm (0.4 in) each, typically showcasing 0 to 1 rainy days. The summer months of June and May also experience lower totals, with only 23 mm (0.9 in) and 33 mm (1.3 in), respectively. However, as autumn arrives, September sees a slight uptick in rainfall with 53 mm (2.1 in), indicating a shift back to the wetter conditions that characterize the islands' climate. This stark contrast between the wet winters and dry summers not only shapes the local ecosystem but also influences tourism and agricultural practices in the region.

Monthly Average Precipitation in Ionian Islands, Greece

The average monthly precipitation in Ionian Islands, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16412191413323111153133263238
Data source: Ionian Islands precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Sunshine Duration in Ionian Islands

In the Ionian Islands, sunshine duration exhibits a striking seasonal pattern, characterized by a steady increase from the winter months to the peak of summer. January begins with 204 hours of sunshine, gradually climbing to 259 hours in February and further increasing to 330 hours by March. This positive trend continues through spring, with April receiving 349 hours and May reaching 400 hours. The arrival of summer marks the pinnacle of sunlight exposure; June records 406 hours, followed closely by July with an impressive 423 hours, establishing it as the sunniest month in the region. August, while slightly lower at 394 hours, still retains ample sunshine, ensuring that visitors enjoy vibrant, sun-drenched days.

As summer wanes and autumn approaches, sunshine hours begin to decline, but the drop is gradual. September sees 343 hours of sunlight, while October offers 310 hours, showcasing the lingering warmth of late summer. November and December experience more notable reductions, with 259 hours and 248 hours, respectively, signaling the onset of winter. Overall, the Ionian Islands enjoy a robust sunshine record, particularly in the summer months, making it an attractive destination for sun-seekers and outdoor enthusiasts alike. The contrast between the abundant sunshine of summer and the diminished hours of winter highlights the region's appeal for seasonal tourism and activities throughout the year.

Monthly Sunshine in Ionian Islands, Greece

Monthly sunshine duration represents the total hours of direct sunlight Ionian Islands receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec204h259h330h349h400h406h423h394h343h310h259h248h
Data source: Ionian Islands sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Ionian Islands UV Index Trends

The UV Index in the Ionian Islands reflects a clear seasonal trend, emphasizing the importance of sun protection during the summer months. Beginning in January with a moderate UV Index of 3, exposure to ultraviolet rays gradually increases to 5 in February and reaches 6 by March. As spring unfolds, the UV Index climbs more steeply, peaking in May at 9. The summer months present the highest risk for UV exposure, with June, July, and August all recording an elevated UV Index of 10, indicating a strong potential for harm from unprotected sun exposure. This period necessitates careful sun safety measures, especially during midday hours when UV radiation is at its strongest.

As the season shifts to autumn, the UV Index begins to decrease, with September featuring a UVI of 8 and October declining further to 7. November and December mark the lowest UV levels of the year, with indices dropping to 4 and 3, respectively. This seasonal fluctuation not only underscores the critical nature of sun safety during the height of summer but also indicates a reduced need for sun protection as winter approaches. Understanding these trends in UV exposure is essential for locals and visitors alike to ensure a safe and enjoyable experience in the sun-soaked Ionian Islands.

Monthly Maximum UV Index for Ionian Islands, Greece

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Ionian Islands. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108743
Data source: Ionian Islands UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Daylight Hours in Ionian Islands

Daylight duration in the Ionian Islands showcases a distinct seasonal pattern, transitioning from shorter days in winter to lengthening hours of sunlight as spring and summer approach. In January, residents and visitors experience only 9 hours of daylight, which gradually increases to 10 hours in February and 11 hours in March. As the region enters spring, daylight hours become notably longer, with April offering 13 hours and May providing an impressive 14 hours. This trend stabilizes in the early summer months, as June, July, and August all maintain 14 hours of daylight, allowing ample time for outdoor activities and exploration.

As summer fades, daylight duration begins to taper off, starting with a slight decrease to 13 hours in August and further decline in September to 12 hours. October and November continue this pattern, presenting 11 hours and 10 hours respectively, before reverting back to 9 hours in December. This cyclical variation in daylight not only enriches the experience of life in the Ionian Islands throughout the year but also influences seasonal tourism, encouraging visitors to take full advantage of the long, sunlit days during the summer months.

Average Monthly Daylight Hours in Ionian Islands, Greece

This chart shows the total daylight hours Ionian Islands receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec585h643h717h793h857h889h872h816h743h667h601h567h
Data source: Ionian Islands daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Ionian Islands's Popular Destinations

Acharavi, Greece experiences a Mediterranean climate characterized by warm summers and mild, wet winters. During the winter months, from November to February, temperatures range from a low of 2°C (36°F) to a high of 19°C (67°F), with significant rainfall reaching up to 274 mm (10.8 in) in November. In contrast, the summer months of June to August see temperatures rise to a maximum of 31°C (87°F) and low precipitation, as little as 10 mm (0.4 in) in July, but benefit from abundant sunshine with up to 425 hours in July. The transitional months of spring and autumn present moderate weather with milder temperatures and varying levels of rainfall, offering a pleasant climate for tourists. For more detailed information about the weather patterns, please check the Acharavi climate.

Agios Ioannis, Greece, experiences a Mediterranean climate characterized by warm summers and mild, wet winters. During summer months, from June to August, temperatures range from a pleasant 22°C (72°F) to a warm 31°C (87°F), accompanied by minimal rainfall, particularly in July with only 8 mm (0.3 in) of precipitation. In contrast, the cooler months from November to March witness temperatures dropping to around 2°C (36°F) in January, with peak rainfall in November at 318 mm (12.5 in). Sunshine is abundant throughout the year, peaking in July with 425 hours, though it reduces significantly during the winter months. For a comprehensive overview, refer to the Agios Ioannis climate.

Argasi, Greece enjoys a Mediterranean climate with mild, rainy winters and hot, sunny summers. In the winter months from November to February, temperatures range from a minimum of 4°C (40°F) to a maximum of 20°C (68°F), and the region experiences substantial rainfall, peaking at 237 mm (9.3 in) in November. As summer approaches, the temperatures rise significantly, with July and August featuring average highs of 29°C (85°F) and 30°C (87°F), respectively, and minimal precipitation, highlighting its dry summer season. The sunshine hours are highest in the summer, reaching 420 hours in July, and gradually decrease toward the cooler months. For more detailed information, visit the Argasi climate.

Argostolion, located in the Ionian Islands of Greece, experiences a Mediterranean climate characterized by mild, wet winters and hot, dry summers. Winter months from December to February see average temperatures ranging from 12°C to 15°C (54-59°F) and significant precipitation, with November being the wettest month at 209 mm (8.2 in). As spring emerges, temperatures gradually rise, accompanied by decreasing rainfall, until the summer months of June to August, where the mercury peaks at around 26°C to 28°C (79-83°F) with minimal rainfall. The area is bathed in abundant sunshine throughout the year, peaking in the summertime with over 400 hours of sunshine per month. More details on the climate can be found here.

Benitses, a picturesque village in Greece, experiences a Mediterranean climate characterized by mild winters and hot, sunny summers. From January to March, temperatures gradually rise from an average of 11°C (52°F) to 13°C (55°F), while rainfall decreases, particularly from February's 149 mm (5.9 in) to March's 112 mm (4.4 in). The warmer months from June to August boast averages reaching up to 27°C (80°F) and minimal precipitation, with July being particularly dry at just 8 mm (0.3 in) while enjoying up to 424 hours of sunshine. As autumn approaches, temperatures cool down slightly, ranging from 24°C (76°F) in September to 20°C (69°F) by October, accompanied by increased rainfall, especially in November with 305 mm (12.0 in). For more details on the climate in Benitses, check Benitses climate.

Corfu, Greece enjoys a Mediterranean climate characterized by hot, dry summers and mild, wet winters. Average temperatures peak in August at around 27°C (80°F) and fall to their coolest in January averaging 11°C (52°F). Rainfall is heaviest in the late autumn and early winter with November receiving about 305 mm (12.0 in) of precipitation, contrasting with the dry July which barely gets 8 mm (0.3 in). The island basks in plentiful sunshine, especially during the summer months, reaching a peak in July with 424 hours of sunshine. For more detailed information, you can visit the Corfu climate.

Gaios, Greece, enjoys a typically Mediterranean climate with mild, wet winters and hot, dry summers. The temperature ranges from an average of 11°C (51°F) in January to 26°C (79°F) in August, with peak temperatures reaching 31°C (88°F) in the summer months. Precipitation is highest during the winter, especially in November and December with over 260 mm (10 inches), while the summer months are relatively dry, particularly July which receives only 8 mm (0.3 inches) of rainfall. The area also benefits from ample sunshine, peaking in July with 425 hours, contributing to the warm and pleasant summer atmosphere. For more detailed climate information, visit the Gaios climate page.

Gaitanion, Greece experiences a Mediterranean climate characterized by warm, dry summers and mild, wet winters. The hottest month is August, with average temperatures reaching up to 30°C (86°F), while January is the coldest, averaging around 13°C (55°F). Rainfall is most abundant from November to January, peaking at 223 mm (8.8 in) in November, whereas summer months, particularly August, see as little as 4 mm (0.2 in) of precipitation. Sunshine is plentiful, with July receiving the most at 420 hours, providing ample daylight throughout the summer. For more details on the climate in Gaitanion, visit Gaitanion climate.

Gouvia, Greece, experiences a Mediterranean climate with mild, wet winters and hot, dry summers. During winter months, temperatures range from 2°C (36°F) to 19°C (67°F) with peak rainfall in November at 274 mm (10.8 in). Summers are marked by temperatures soaring between 20°C (69°F) and 31°C (87°F) and minimal rain, particularly in July with just 10 mm (0.4 in). The region enjoys ample sunshine, especially from May to August, with July offering up to 425 hours of sunlight. For more details, visit the Gouvia climate page.

Ithaki, a picturesque island in Greece, experiences a Mediterranean climate characterized by mild, wet winters and warm, dry summers. During winter months, temperatures range from a minimum of 3°C (38°F) in January to an average maximum of 19°C (66°F), with significant precipitation, peaking at 225 mm (8.8 in) in November. Conversely, summer months bring minimal rainfall, particularly in August with only 5 mm (0.2 in), while temperatures peak at 30°C (85°F). The island is abundant in sunshine, especially from April to September, with July offering the most daylight at 422 hours. For a detailed overview of Ithaki's climate, visit the Ithaki climate.

Kassiopi, Greece, experiences a Mediterranean climate characterized by warm, dry summers and mild, wet winters. Average temperatures range from 9°C (49°F) in January to 27°C (80°F) in August, with summer highs reaching up to 35°C (95°F) in July. Precipitation peaks in the winter months, with November and December receiving the most rain at 234 mm (9.2 in) and 231 mm (9.1 in) respectively, while the summer months are significantly drier. Sunshine hours vary throughout the year, ranging from 197 hours in January to a peak of 424 hours in July, providing ample sunlight for outdoor activities. For more information, refer to the Kassiopi climate.

Kavos, Greece, located in the Ionian Islands, experiences a Mediterranean climate characterized by hot, dry summers and mild, wet winters. Average temperatures range from 11°C (52°F) in January to 27°C (80°F) in August, with peak summer temperatures reaching 31°C (88°F). The region sees significant rainfall from November to February, with November being the wettest month at 305 mm (12.0 in). Summer months, by contrast, are arid, with July and August receiving minimal precipitation of 8 mm (0.3 in) and 15 mm (0.6 in), respectively. Sunshine hours peak in July with 424 hours, indicating long, bright days, perfect for beach activities. For more details, visit the Kavos climate page.

Laganas, Greece, located in the Ionian Islands, experiences a Mediterranean climate characterized by mild, wet winters and warm, dry summers. During the winter months, temperatures range from a minimum of 4°C (40°F) in January to a maximum of 19°C (67°F) in December, with significant rainfall, peaking at 223 mm (8.8 in) in November. As spring arrives, temperatures gradually rise from an average of 14°C (57°F) in March to 27°C (81°F) by June, while precipitation decreases markedly, reaching its lowest in July with just 13 mm (0.5 in). The summer months are marked by consistently warm temperatures, averaging 25°C (77°F) in July and peaking at 30°C (86°F) in August, accompanied by abundant sunshine and minimal rainfall. For more detailed information, visit the Laganas climate.

Lefkada, Greece, experiences a Mediterranean climate, characterized by mild, wet winters and warm, dry summers. The average temperatures range from 11°C (52°F) in January to 26°C (79°F) in August, with July and August being the hottest months, peaking at a maximum of 31°C (87°F). The island receives its highest rainfall during December with 281 mm (11.1 in), while July and August are the driest months with precipitation as low as 10 mm (0.4 in). Sunshine hours vary throughout the year, peaking in July at 424 hours, providing ample sunlight for outdoor activities. For more details, visit Lefkada climate.

Limni, Greece experiences a Mediterranean climate characterized by mild, wet winters and hot, dry summers. Winter months, including January and February, have average temperatures ranging from 12°C to 13°C (53°F to 55°F) and high precipitation levels, peaking at 274 mm (10.8 in) in November, while sunshine is limited during these months with around 204 to 257 hours. As the year progresses towards summer, temperatures rise significantly with August being the hottest month, boasting average highs of 31°C (87°F) and minimal rainfall at 15 mm (0.6 in), complemented by abundant sunshine lasting up to 425 hours in July. As autumn approaches, precipitation increases again, notably in October with 145 mm (5.7 in) of rain, and temperatures gradually decrease. For more detailed information, visit the Limni climate page.

Lithakia, Greece, experiences a Mediterranean climate characterized by mild, wet winters and hot, dry summers. Winter months such as January and December see average temperatures around 13°C (55°F) and substantial rainfall, with up to 177 mm (7 in) in January. In contrast, summer (July and August) brings warmer weather, with average temperatures soaring to 25-26°C (77-79°F) and minimal precipitation, as low as 4 mm (0.2 in) in August. Sunshine is plentiful, peaking in July with 420 hours, providing ample sunny days for outdoor activities. For more details on the climate in Lithakia, visit the Lithakia climate page.

Nikiana, Greece, experiences a Mediterranean climate characterized by mild, wet winters and hot, dry summers. From January through March, temperatures gradually increase, with averages rising from 11°C (52°F) to 12°C (55°F), while precipitation decreases from 201 mm (7.9 in) to 97 mm (3.8 in). Summer months, particularly July and August, see minimal rainfall, just 13 mm (0.5 in) and 10 mm (0.4 in), while average temperatures peak at 26°C (79°F) in August. The region enjoys abundant sunshine, reaching its peak in July with 424 hours of sun, and remains relatively sunny through the fall. For more details on the local climate, please visit Nikiana climate.

Pantokrator, located in Greece, experiences a Mediterranean climate characterized by hot, dry summers and mild, wet winters. The warmest months are July and August, with average temperatures peaking at 26°C (79°F) and maximums reaching 30°C (86°F). In contrast, January and December are cooler, with average temperatures around 13-15°C (55-59°F) and significant rainfall, particularly in November with 223 mm (8.8 in). Sunshine is abundant throughout the year, especially in July with 420 hours, providing a bright atmosphere even in rainier periods. For more detailed information, visit the Pantokrator climate.

Peroulades, Greece experiences a Mediterranean climate characterized by warm, dry summers and mild, wetter winters. During the summer months from June to August, temperatures range from an average of 22°C (72°F) to highs of 31°C (87°F), paired with minimal precipitation, especially in July, which receives only 10 mm (0.4 in) of rain. The winter months, particularly November and December, are wetter, with precipitation levels peaking at 274 mm (10.8 in) and 249 mm (9.8 in), respectively. Sunshine is abundant throughout the year, with July offering the most at 425 hours. For more information, you can check the Peroulades climate.

Planos, Greece, experiences a Mediterranean climate with mild, wet winters and hot, dry summers. Winter temperatures range from 4°C to 19°C (40°F to 67°F), with notable rainfall peaks in January and December, averaging 177 mm (7.0 in) and 178 mm (7.0 in) respectively. In contrast, summer is typically dry, with August experiencing minimal precipitation at 4 mm (0.2 in), while temperatures rise to a maximum of 30°C (86°F). Sunshine is abundant in the summer, peaking in July with 420 hours, and even in winter, the area receives considerable sunlight, with January hosting 207 hours. For more detailed information, visit the Planos climate.

Poros, Greece, enjoys a mild Mediterranean climate characterized by warm, dry summers and mild, wet winters. The average temperature ranges from 12°C (54°F) in January to 26°C (79°F) in August, with the warmest months being July and August, where temperatures can peak at 30°C (85°F). Rainfall is concentrated mainly in winter, with November being the wettest month at 225 mm (8.8 in), while the summer months, particularly July and August, see minimal precipitation. Sunshine is abundant year-round, peaking in July with 422 hours of sunshine. For more detailed information, visit the Poros climate page.

Roda, Greece, features a Mediterranean climate characterized by mild, wet winters and hot, dry summers. During winter months, temperatures range from a minimum of 2°C (36°F) in January to an average of 12°C (53°F), while rainfall peaks at 274 mm (10.8 in) in November. Summer brings higher temperatures, with averages around 25°C (76°F) in July and minimal rainfall, particularly in July, which records only 10 mm (0.4 in). Sunshine is abundant throughout the year, with July enjoying the most sunlight at 425 hours. For more details, visit the Roda climate page.

Sami, Greece experiences a Mediterranean climate characterized by mild, wet winters and hot, dry summers. The temperature ranges from an average low of 3°C (38°F) in January to a high of 30°C (85°F) in August. Precipitation is highest in November with 225 mm (8.8 in) and lowest in August, recording only 5 mm (0.2 in). Sunshine is plentiful throughout the year, peaking in July with 422 hours. For more detailed information, visit the Sami climate.

Ypsos, located in the Ionian Islands of Greece, experiences a Mediterranean climate characterized by mild winters and hot summers. During the winter months, temperatures range from 2°C (36°F) to 19°C (67°F), with significant rainfall, particularly in November and December, which see precipitation levels of 274 mm (10.8 in) and 249 mm (9.8 in) respectively. As the climate transitions into summer, temperatures rise significantly, peaking in August with temperatures between 21°C (69°F) and 31°C (87°F), and minimal rainfall of just 15 mm (0.6 in). Sunshine is abundant, especially between May and August, when the island receives over 400 hours of sunshine monthly. More detailed climate information can be found on the Ypsos climate page.

Zakynthos, Greece, experiences a Mediterranean climate characterized by hot, dry summers and mild, wetter winters. During summer, temperatures peak with July and August averaging 25-27°C (77-80°F), while minimal rainfall occurs, notably in August with only 9 mm (0.3 in). In contrast, winters see cooler temperatures, with January having average lows of 4°C (40°F), and substantial rainfall, highlighted by November's 237 mm (9.3 in). Sunshine duration is generous year-round, maximized in summer months, reaching up to 420 hours in July. For more details, visit the Zakynthos climate page.

Conclusion

In conclusion, the Ionian Islands of Greece offer a captivating climate characterized by distinct seasonal changes in temperature, precipitation, sunshine duration, UV Index, and daylight hours. From the mild winters with limited daylight and moderate UV exposure to the sun-drenched summers boasting the longest days and intense UV levels, each season presents unique opportunities and considerations for residents and visitors alike. The significant variation in weather conditions not only shapes the landscape and ecology of the islands but also influences tourism and outdoor activities throughout the year. Understanding these climatic patterns is essential for effectively planning trips and enjoying the rich natural beauty of this enchanting region, ensuring that both locals and travelers make the most of what the Ionian Islands have to offer in every season.

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