May Weather in Kallithea, Greece

Last updated: August 21, 2025

May in Kallithea, Greece ushers in a delightful transition towards summer, showcasing a maximum temperature of 28°C (82°F). The average temperature hovers around a pleasant 18°C (64°F), while evenings can cool down to a refreshing 10°C (49°F). Despite the warm days, expect moderate rainfall, with a total precipitation of 73 mm (2.9 in) spread over 12 days, resulting in a humidity level of 72%. This combination of warmth and occasional showers creates a lush and vibrant atmosphere, perfect for outdoor exploration and enjoying the beauty of Kallithea.

May Temperature in Kallithea

As spring reaches its peak, May in Kallithea, Greece, brings a delightful warmth that invites outdoor exploration. With minimum temperatures rising to 10°C (49°F) and averages around 18°C (64°F), the month marks a notable transition from the cooler months to the pleasantly mild summer ahead. By day, highs can reach a balmy 28°C (82°F), perfect for leisurely strolls along the coast or enjoying the vibrant local culture. This gradual warming trend sets the stage for even hotter days in June, yet May retains a lovely balance, offering both warmth and comfort without the intensity of the summer heat. Whether enjoying the blooming landscapes or indulging in delicious Greek cuisine, May’s temperatures create an ideal backdrop for memorable experiences in this charming destination.

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

The chart illustrates May temperature patterns in Kallithea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kallithea, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec414649556471767771615446
Data source: Temperature data for Kallithea 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 Kallithea

In Kallithea, Greece, May witnesses a gentle decline in precipitation, with an average of 73 mm (2.9 in) over 12 rainy days. This reduction follows the wetter conditions of the previous months, particularly March, which recorded the highest rainfall at 106 mm (4.2 in). The overall pattern suggests a transition towards the drier summer months, as seen in June's rainfall of 92 mm (3.6 in), although it still features more precipitation days. May’s weather strikes a balance, offering a refreshing respite from the earlier downpours while hinting at the sunnier days ahead, making it an ideal time for both locals and visitors to enjoy the vibrant spring atmosphere.

May Precipitation Trends in Kallithea

The chart displays monthly precipitation patterns in Kallithea, 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. In Kallithea, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec908810677739280423893187115
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Kallithea

As spring transitions into summer, May in Kallithea, Greece, experiences a notable shift in humidity levels. With humidity remaining consistent at 72%, it mirrors the dry spell that begins in June, where levels drop to 57%. This stabilization in May highlights a period of comfort before the heat intensifies, providing a pleasant ambiance for outdoor activities. Moreover, the gradual decrease from the higher winter months—peaking at 89% in January—emphasizes the region's evolution towards a drier summer climate, making late spring an ideal time for exploration and enjoyment of Kallithea's scenic beauty.

May Average Humidity in Kallithea

This chart illustrates the average monthly humidity levels in Kallithea, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Kallithea is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%84%81%72%72%57%50%43%56%74%87%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Kallithea

As May arrives in Kallithea, Greece, the UV Index reaches a striking 9, categorized as very high. This marks a significant escalation from the earlier months, reminding residents and visitors alike to be vigilant about sun safety. With a burn time of just 15 minutes, it's crucial to take protective measures, such as wearing sunscreen and seeking shade during peak hours. This upward trend in UV levels continues into June and July, where the Index peaks at 10, urging caution for outdoor activities. As warmer days settle in, being mindful of UV exposure will ensure a safe and enjoyable experience under the Mediterranean sun. For more details, visit Kallithea UV Index.

Maximum UV Index Levels in Kallithea for May

The chart shows the monthly maximum UV Index (UVI) for Kallithea 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. In May, the maximum UV index in Kallithea typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Kallithea 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 Kallithea

As spring transitions into summer, Kallithea, Greece basks in a remarkable increase in sunshine hours, particularly in May when sun-drenched days reach an impressive 397 hours. This month marks a delightful turning point, with sunlight steadily climbing from 337 hours in April and nearing the peak of summer, where June boasts 400 hours. The trend showcases a gradual but consistent rise from the winter months, where January lags behind at only 189 hours. By August, the sun remains generous with 395 hours, but as autumn approaches, there’s a noticeable decline. Overall, the growing sunshine in May heralds not only the warmth of summer but also the promise of vibrant outdoor experiences in this picturesque Greek locale.

Monthly Sunshine Duration in Kallithea: May Highlighted

The May sunshine duration represents the total number of hours Kallithea 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.
JanFebMarAprMayJunJulAugSepOctNovDec189h230h312h337h397h400h424h395h346h296h238h232h
Data source: Kallithea May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kallithea During May

In Kallithea, Greece, the months leading up to May show a gradual increase in sunshine likelihood, setting the stage for a bright spring. With a 57% chance of sunny weather in May, this month marks a notable uplift from the cooler early months like January and March, which hover around 40-50%. As the seasons progress into summer—with June reaching 65% and July and August soaring past 80%—May serves as a delightful transition into the sun-soaked days ahead. This trend not only highlights the charm of May but also indicates that it’s a perfect time for outdoor activities, as the Mediterranean sun begins to warm the landscape, inviting both locals and visitors to enjoy its blooming beauty.

Percentage of Sunny Days in May in Kallithea

The chart illustrates the percentage of sunny days in Kallithea 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 Kallithea experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%58%50%51%57%65%80%81%54%40%31%48%
Data source: Kallithea May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kallithea in May

As spring transitions into summer in Kallithea, Greece, the length of daylight steadily increases, providing residents and visitors with more opportunities to enjoy the vibrant outdoor scene. In May, the daylight extends to 14 hours, marking a noticeable shift from the 13 hours experienced in April. This increase reflects the region's gradual move towards the long, sun-soaked days of summer, where daylight is consistently abundant through June and July. Following this peak, daylight begins to taper off as autumn approaches, with September offering 12 hours and October reducing to 11 hours. Notably, the cycle culminates in winter, where daylight returns to 9 hours in both November and December. This rhythmic pattern not only enhances the beauty of Kallithea's scenic landscapes but also invites a myriad of outdoor activities throughout the warmer months.

Average Daylight Hours in Kallithea for May

The chart illustrates the variation in daylight duration in Kallithea throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 39m10h 40m11h 57m13h 17m14h 24m14h 58m14h 40m13h 41m12h 24m11h 5m9h 56m9h 20m
Data source: Kallithea daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Kallithea

In Kallithea, Greece, the month of May offers a gentle, refreshing breeze with an average wind speed of 2.5 m/s (6 mph), mirroring the calm conditions seen in April and preceding June. This consistent wind pattern, characterized by its mildness, signifies the transition from spring to summer, providing an ideal backdrop for outdoor activities and leisurely strolls along the coast. Notably, the wind speeds remain relatively stable, only slightly dipping before the summer months, which typically feature a calming effect on the warm Mediterranean atmosphere. Overall, May’s gentle winds enhance the charm of Kallithea, inviting residents and visitors alike to bask in the serene environment as the vibrant colors of spring continue to flourish.

Average May Wind Speed in Kallithea

The chart displays monthly wind speed patterns in Kallithea, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.12.52.72.52.5 m/s2.22.42.42.42.52.33.1
Data source: Kallithea May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Kallithea Compares to Other Months

Weather in Kallithea varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Kallithea, focusing on differences in temperature, rainfall, humidity, and UV levels.

May and January present stark contrasts in weather conditions. In May, temperatures range from a mild 10°C (49°F) at night to a warm 28°C (82°F) during the day, accompanied by an average of 18°C (64°F). The month sees about 73 mm (2.9 in) of precipitation over 12 days and a moderate humidity level of 72%.

In contrast, January is much colder, with temperatures dropping as low as -11°C (12°F) and peaking at a maximum of 16°C (62°F), resulting in an average temperature of just 5°C (42°F). While it experiences a similar number of rainy days, January has a higher total precipitation of 90 mm (3.5 in) and elevated humidity at 89%. For more details, you can refer to Kallithea weather in January.

May and February present stark contrasts in weather. In May, temperatures range from a minimum of 10°C (49°F) to a maximum of 28°C (82°F), with an average of 18°C (64°F). The month experiences 73 mm (2.9 in) of precipitation over about 12 days, combined with moderate humidity at 72%. In contrast, February is much chillier, with temperatures dipping as low as -6°C (21°F) and peaking at 17°C (63°F), leading to an average of 8°C (46°F). It also sees slightly higher precipitation at 88 mm (3.5 in) over the same number of days, coupled with increased humidity at 84%. For more detailed insights, you can check out Kallithea weather in February.

When comparing the weather in May and March, a distinct transition towards warmer and drier conditions is evident. In March, temperatures range from a chilly -3°C (28°F) to a mild 19°C (66°F), while May enjoys a much more pleasant range of 10°C (49°F) to 28°C (82°F). In addition, March experiences higher precipitation levels at 106 mm (4.2 in) over 12 days, compared to May's 73 mm (2.9 in), also spread across 12 days. Humidity remains relatively high in both months, though March's average of 81% is slightly higher than May's 72%. For more detailed insights into March weather, you can visit Kallithea weather in March.

In comparing the weather of April and May, we observe that May generally enjoys milder temperatures, with a minimum of 10°C (49°F) and an average of 18°C (64°F), compared to April's cooler minimum of 2°C (36°F) and an average of just 13°C (55°F). While both months feature similar levels of humidity at 72%, May experiences slightly less precipitation, totaling 73 mm (2.9 in) over 12 days compared to April's 77 mm (3.0 in) over 11 days. Overall, May ushers in warmer weather and slightly reduced rainfall, making it a more pleasant month for outdoor activities. For more detailed information about April weather, you can visit Kallithea weather in April.

In comparing the weather between May and June, June tends to be warmer and generally drier. May experiences temperatures ranging from a low of 10°C (49°F) to a high of 28°C (82°F), with an average temperature of 18°C (64°F). It also sees approximately 73 mm (2.9 in) of precipitation over 12 days, accompanied by relatively high humidity at 72%. In contrast, June features higher temperatures, with a minimum of 12°C (55°F), an average of 22°C (71°F), and a maximum of 32°C (91°F). Precipitation increases slightly to 92 mm (3.6 in) over 15 days, but humidity drops significantly to 57%. For more details on the specifics of June weather, check out Kallithea weather in June.

In comparing the weather patterns of May and July, we notice a significant difference in temperature and humidity levels. May features a mild range, with minimum temperatures around 10°C (49°F) and an average of 18°C (64°F), while July sees warmer conditions, with a minimum of 16°C (61°F) and an average of 24°C (76°F). Although both months experience considerable rainfall, May has a total precipitation of 73 mm (2.9 in) over 12 days, compared to July's 80 mm (3.1 in) over just 9 days. Additionally, humidity is notably higher in May at 72%, whereas July enjoys a more comfortable level of 50%. For further details on July weather specifically, you can check Kallithea weather in July.

When comparing the weather in May and August, notable differences emerge. May experiences cooler temperatures, with an average of 18°C (64°F), while August warms up significantly to an average of 25°C (77°F). Additionally, May has a higher level of humidity at 72% compared to August's 43%, contributing to a more comfortable feel in the latter month. Precipitation is also lower in August, with only 42 mm (1.6 in) over about 7 days, whereas May sees 73 mm (2.9 in) over 12 days. For more details, check out Kallithea weather in August.

When comparing the weather in May and September, both months exhibit warm temperatures but with some notable differences. In May, temperatures range from a minimum of 10°C (49°F) to a maximum of 28°C (82°F), with an average of 18°C (64°F). The month experiences a relatively high level of precipitation, averaging 73 mm (2.9 in) over 12 days, accompanied by a humidity level of 72%. In contrast, September sees a slight increase in the minimum temperature, starting at 11°C (51°F), with maximums reaching 29°C (85°F) and an average of 21°C (71°F). Additionally, September enjoys drier conditions, with only 38 mm (1.5 in) of rain over 6 days and a lower humidity of 56%. For more detailed weather insights, check Kallithea weather in September.

In May, the weather is typically warmer with average temperatures ranging from a minimum of 10°C (49°F) to a maximum of 28°C (82°F) and an average of 18°C (64°F). The month sees about 73 mm (2.9 in) of precipitation over 12 rainy days, coupled with a humidity level of 72%. In contrast, October experiences slightly cooler temperatures, with a minimum of 8°C (46°F), an average of 16°C (61°F), and a maximum of 25°C (78°F). During this month, the precipitation increases to 93 mm (3.6 in) over 10 days, and humidity rises slightly to 74%. For more specific information about the weather in October, you can check Kallithea weather in October.

May and November present contrasting weather patterns. In May, temperatures range from a minimum of 10°C (49°F) to a maximum of 28°C (82°F), with an average temperature of 18°C (64°F). The month experiences moderate precipitation of 73 mm (2.9 in) over approximately 12 days, accompanied by a humidity level of 72%. In stark comparison, November features cooler temperatures, with a minimum of 3°C (37°F) and an average of 12°C (54°F), peaking at 20°C (69°F). This month is significantly wetter, as it receives 187 mm (7.3 in) of rain spread across 14 days, and the humidity rises to 87%. For a detailed look at weather trends in November, you can visit Kallithea weather in November.

May and December present strikingly contrasting weather conditions. In May, temperatures range from a mild 10°C (49°F) at night to a warm 28°C (82°F) during the day, with average humidity around 72% and total precipitation of 73 mm (2.9 in) spread across 12 days. In contrast, December sees much cooler temperatures, with nighttime lows plummeting to -1°C (31°F) and daytime highs peaking at 16°C (62°F). This winter month is characterized by higher precipitation, totaling 115 mm (4.5 in) over 11 days, and notably increased humidity levels at 89%. For a deeper look into December's weather in Kallithea, you can visit Kallithea weather in December.

Compare Kallithea's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Kallithea

As May arrives in Kallithea, the weather begins to transition toward more inviting warmth, a welcome change from the cooler months. With average temperatures climbing to a pleasant 18°C, both locals and visitors can enjoy outdoor activities amid the vibrant scenery. However, May also brings occasional rain, with precipitation occurring on about 12 days, adding a refreshing touch to the blooming landscapes. The humidity level settles at a comfortable 72%, ensuring that while it is warmer, it remains manageable compared to the sweltering summer months. For a deeper dive into how May fits into the broader seasonal patterns, check out Kallithea Climate.