May Weather in Spetses, Greece

Last updated: February 6, 2025

In May, Spetses welcomes visitors with a refreshing blend of mild temperatures and delightful weather conditions. With maximum temperatures reaching 26°C (79°F) and an average of 20°C (68°F), the island offers the perfect escape from the hustle and bustle of everyday life. The cooler minimum temperature of 14°C (58°F) creates an inviting atmosphere for outdoor activities. Expect just 11 mm (0.4 in) of rain over the month, falling on only one day, allowing ample time to bask in the stunning surroundings. Coupled with a 77% humidity, May in Spetses is an enchanting month to experience the island's beauty!

May Temperature in Spetses

May in Spetses, Greece marks the delightful transition into warmer weather, with temperatures reflecting the vibrant pulse of spring. The minimum rises to a comfortable 14°C (58°F), while the average showcases a pleasant 20°C (68°F), perfect for leisurely strolls by the sea. As the month progresses, daytime highs reach a delightful 26°C (79°F), enticing visitors to bask in the sun or explore the charming streets. This month acts as a gentle precursor to summer, bridging the coolness of spring with the escalating warmth of June, making it an ideal time to experience all that this enchanting island has to offer.

May Weather in Spetses: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Spetses, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535556606774808177706458
Data source: Temperature data for Spetses generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Spetses

In May, Spetses, Greece, experiences a significant reduction in precipitation, with only 11 mm (0.4 in) of rain falling over just a single day. This stark contrast to the wetter months preceding it—where rainfall averages hover around 35 mm to 55 mm—signals the onset of the island’s drier season. As spring fades, the sky opens up, inviting sun seekers to enjoy the beautiful landscapes and coastal vistas. With a mere 1 day of rain, visitors can expect mostly clear skies, making May an ideal time to explore the picturesque charm of Spetses before the summer heat takes hold.

May Precipitation Trends in Spetses

The chart displays monthly precipitation patterns in Spetses, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec535535251192632285555
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Spetses

In Spetses, Greece, the humidity during May reaches a comfortable 77%, marking a slight increase from the preceding months. This little uptick signals the arrival of summer, as humidity levels peak in the spring before gradually declining in the hotter months of June and July. Notably, from February to April, humidity fluctuates within a narrow band, hovering between 74% and 75%, showcasing a stable and mild climate in the lead-up to summer. As the seasons transition, July and August present drier conditions with humidity dropping to 68% and 63% respectively, offering a refreshing respite from the heat. The overall trend indicates a distinct seasonal pattern in humidity, with May serving as a bridge to the more arid summer months.

May Average Humidity in Spetses

This chart illustrates the average monthly humidity levels in Spetses, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%77%72%68%63%65%72%75%76%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Spetses

May in Spetses, Greece, marks a peak in UV exposure, with the UV Index hitting 10, categorizing it as very high. This means that sunburn can occur in just 15 minutes of unprotected sun exposure. As warmer days approach, the UV levels steadily rise from the moderate rates seen in January and February to a notable 6 in March and soaring to 8 in April, indicating a clear trend of increasing UV intensity leading into summer. It's essential for visitors and locals alike to take precautions during this time. Ensure you stay protected to fully enjoy the beautiful sun-kissed days. For more details on UV readings and safety tips, visit Spetses UV Index.

Maximum UV Index Levels in Spetses for May

The chart shows the monthly maximum UV Index (UVI) for Spetses in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3568101010108743
Data source: Spetses May UVI data generated using information from the Copernicus Climate Change Service.

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.

May Sunshine in Spetses

As spring unfolds, May in Spetses, Greece shines brightly with an impressive 400 hours of sunshine, marking a delightful peak that sets the stage for the summer months ahead. The pattern of increasing sunlight is evident as the days grow longer from the start of the year; January begins with 216 hours, slowly climbing to 347 hours by April. This trend accelerates into June and July, where the sunshine reaches its zenith at 410 and 422 hours, respectively. The warmth of May invites visitors to bask in the vibrant atmosphere, just before the summer sun peaks, promising a perfect blend of pleasant weather and leisurely days spent by the sea. Even as the sun starts to fade into autumn, the 347 hours in September linger in the minds of those who embrace the lingering warmth of this beautiful island.

Monthly Sunshine Duration in Spetses: May Highlighted

The May sunshine duration represents the total number of hours Spetses experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec216h263h334h347h400h410h422h394h347h320h268h258h
Data source: Spetses May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Spetses During May

In Spetses, Greece, the likelihood of sunny weather experiences a noticeable upward trend as spring unfolds into summer. May stands out with a 75% chance of sunshine, marking a significant increase from the previous months, particularly April's 57%. This promising forecast heralds the approach of the sunniest months, June and July, which boast remarkable probabilities of 79% and 96%, respectively. With the days lengthening and temperatures warming, May not only offers delightful weather but also sets the stage for the vibrant summer ahead. Whether you're planning leisurely beach days or exploring the island’s charming streets, the sunny outlook in May makes it an ideal time to experience the beauty of Spetses.

Percentage of Sunny Days in May in Spetses

The chart illustrates the percentage of sunny days in Spetses throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Spetses experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%67%61%58%75%79%96%96%79%57%41%57%
Data source: Spetses May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Spetses in May

In Spetses, Greece, the transformation of daylight throughout the year is both striking and inviting. As winter fades, daylight begins to lengthen, with January starting at a modest 9 hours. By March, this increases to 11 hours, heralding the arrival of spring. April sees a significant jump to 13 hours, setting the stage for the golden days of summer. May shines brightly with 14 hours of daylight, paired with warm weather that entices both locals and travelers to embrace the outdoors. This peak continues into June and July, where the island basks in the same generous daylight before gradually tapering off in late summer. As autumn approaches, the hours of daylight decrease, but even in October, 11 hours provide ample time to enjoy the lingering warmth of the season. Overall, Spetses offers a delightful progression of daylight that enhances its vibrant atmosphere throughout the year.

Average Daylight Hours in Spetses for May

The chart illustrates the variation in daylight duration in Spetses throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 54m10h 48m11h 58m13h 9m14h 10m14h 40m14h 24m13h 31m12h 22m11h 11m10h 9m9h 37m
Data source: Spetses daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Spetses

In Spetses, Greece, the May winds are gentle, with an average wind speed of 3.5 m/s (8 mph), marking a continued decline from the breezier months of spring. This trend of decreasing wind speeds reaches its lowest point in June, offering a serene environment perfect for leisurely strolls along the picturesque coastline. However, as summer progresses, the winds pick up again in July and August, while the early autumn months, particularly September, bring a refreshing increase to 4.4 m/s (10 mph), hinting at the island's dynamic climate. By October, the winds regain strength, making a noticeable leap to 5.3 m/s (12 mph), providing a lively backdrop as the island transitions into winter. Overall, May’s calming breezes set the stage for a tranquil experience, allowing visitors to fully embrace the beauty of this charming destination.

Average May Wind Speed in Spetses

The chart displays monthly wind speed patterns in Spetses, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.94.74.54.03.5 m/s3.03.83.74.45.34.75.5
Data source: Spetses May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Spetses Compares to Other Months

The weather in Spetses changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Spetses and find detailed weather information for every month.

May and January present quite distinct weather patterns. May enjoys a milder climate with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (79°F), coupled with low precipitation of just 11 mm (0.4 in) over a single day, making it a generally dry month with a humidity level of 77%. In contrast, January offers cooler temperatures, with averages between 3°C (38°F) and 21°C (69°F), but sees significantly more rainfall at 53 mm (2.1 in) over eight days, resulting in a slightly lower humidity of 76%. For more details about January conditions, you can refer to Spetses weather in January.

When comparing the weather in May and February, it's clear that May offers much warmer temperatures, with a minimum of 14°C (58°F) and an average of 20°C (68°F), reaching a maximum of 26°C (79°F). In contrast, February is significantly cooler, with temperatures ranging from a low of 5°C (41°F) to a high of 18°C (64°F) and an average of just 13°C (55°F). Additionally, precipitation is much less frequent in May, with only 11 mm (0.4 in) over just one day, unlike February, which sees 55 mm (2.1 in) across seven days. Humidity levels are similar in both months, with February at 75% and May slightly higher at 77%. For more information on February weather, you can check out Spetses weather in February.

The weather in May is considerably warmer and drier compared to March. In May, temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (79°F), with an average temperature of 20°C (68°F) and only 11 mm (0.4 in) of precipitation over just one day. In contrast, March experiences cooler temperatures, with a minimum of 5°C (41°F), an average of 13°C (56°F), and a maximum of 19°C (66°F). Additionally, March sees more precipitation, averaging 35 mm (1.4 in) over four days, but somewhat lower humidity at 74%. For more details about March weather, you can check Spetses weather in March.

In comparing the weather between April and May, May typically offers a warmer and drier climate. The minimum temperature rises from April's 9°C (49°F) to 14°C (58°F), with average highs increasing from 22°C (72°F) in April to 26°C (79°F) in May. Additionally, May experiences significantly less rainfall, receiving just 11 mm (0.4 in) over one day compared to April's 25 mm (1.0 in) over four days. Humidity levels remain relatively consistent, with May at 77% and April at 75%. For more detailed information on April weather, you can visit Spetses weather in April.

May and June showcase a notable progression in weather, with June generally warmer than May. In May, temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (79°F), with an average of 20°C (68°F) and relatively high humidity at 77%. Precipitation is minimal, with just 11 mm (0.4 in) over one day. In contrast, June experiences higher temperatures, with a minimum of 18°C (65°F) and a maximum of 29°C (85°F), averaging 24°C (75°F). Although precipitation decreases slightly to 9 mm (0.3 in) over two days, the humidity also drops to 71%. For a closer look at June conditions, refer to Spetses weather in June.

May and July weather in Spetses present distinct contrasts. In May, temperatures range from a mild 14°C (58°F) to a comfortable 26°C (79°F), with an average of 20°C (68°F). Humidity is relatively high at 77%, and there is light precipitation with about 11 mm (0.4 in) over one day. In contrast, July boasts warmer temperatures, with a minimum of 22°C (72°F) and a maximum of 33°C (92°F), averaging 27°C (80°F). This month experiences much drier conditions, with only 2 mm (0.1 in) of precipitation, and notably, no rainy days, accompanied by a lower humidity level of 68%. For more details on weather during this summer month, check out Spetses weather in July.

May and August present contrasting weather experiences. In May, temperatures range from a mild 14°C (58°F) at night to a pleasant average of 20°C (68°F) during the day, peaking at 26°C (79°F). The month sees light rainfall, with only 11 mm (0.4 in) of precipitation across just one day, combined with relatively high humidity at 77%. In contrast, August warms up significantly, with minimum temperatures around 23°C (73°F) and an average of 27°C (81°F), reaching highs of 34°C (93°F). Interestingly, August experiences even less rainfall, totaling just 6 mm (0.2 in) over one day, and the humidity drops to a more comfortable 63%. For more details on what to expect weather-wise, check out Spetses weather in August.

May and September both offer pleasant weather but with notable differences. In May, temperatures range from a comfortable 14°C (58°F) at night to a warm 26°C (79°F) during the day, accompanied by relatively low precipitation of just 11 mm (0.4 in) over one day and high humidity of 77%. In contrast, September boasts higher temperatures, with a minimum of 18°C (64°F) and a maximum of 31°C (88°F), and increased precipitation totaling 32 mm (1.2 in) over two days, while humidity levels drop to 65%. For those interested in specifics, check out Spetses weather in September for more detailed insights.

May typically experiences slightly warmer temperatures, with an average of 20°C (68°F) compared to October's average of 21°C (70°F). However, October sees a marginally higher humidity at 72%, while May maintains a higher humidity level of 77%. Precipitation is also more frequent in October, with 28 mm (1.1 in) over 3 days, in contrast to May's lighter rainfall of 11 mm (0.4 in) across just 1 day. Overall, October offers warm days but with a bit more rain compared to the drier conditions of May. For more specific details on October weather, you can check Spetses weather in October.

In May, the weather tends to be warmer, with average temperatures around 20°C (68°F) and maximums reaching up to 26°C (79°F). The month experiences relatively low precipitation, averaging just 11 mm (0.4 in) over approximately one day, accompanied by a humidity level of 77%. In contrast, November cools down slightly, with average temperatures of 18°C (64°F) and highs of 24°C (75°F). However, this month sees a significant increase in rainfall, totaling 55 mm (2.1 in) over about eight days, while maintaining a similar humidity level of 75%. For a closer look at the November conditions, you can check out Spetses weather in November.

In May, the weather is generally warmer with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (79°F), averaging around 20°C (68°F). This month sees minimal rainfall, with just 11 mm (0.4 in) over one day, and a humidity level of 77%. In contrast, December brings cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 20°C (68°F), averaging 14°C (58°F). December is also significantly wetter, with 55 mm (2.2 in) of precipitation spread over nine days, while humidity remains fairly consistent at 76%. For more detailed information on December weather specifics, you can check Spetses weather in December.

Compare Spetses's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Spetses

As spring unfolds in Spetses, May offers a delightful contrast to the preceding months, ushering in warmer temperatures and a hint of summer’s approach. With an average temperature of around 20°C (68°F), days are pleasantly mild, making it an ideal time for outdoor exploration and beach outings. Unlike the wetter winter months, May boasts minimal rainfall, typically only experiencing about 11 mm of precipitation over a single day, allowing visitors to fully enjoy the vibrant surroundings. Humidity remains at a moderate 77%, adding to the overall comfort. For a deeper understanding of the island’s climate, check out Spetses Climate.