May Weather in Zakynthos, Greece

Last updated: August 21, 2025

May in Zakynthos, Greece offers a delightful blend of warm temperatures and refreshing breezes, making it an ideal time to explore this stunning island. With maximum temperatures reaching 26°C (80°F) and an average of 19°C (66°F), days are pleasantly inviting, though evenings can be cooler, dropping to a minimum of 13°C (56°F). Visitors can expect light rainfall, with a total precipitation of 16 mm (0.6 in) over approximately four days, adding a refreshing touch to the lush landscapes. Coupled with a humidity level of 79%, May provides a vibrant atmosphere ripe for outdoor adventures, soaking in the scenic beauty and enjoying the vibrant culture of Zakynthos.

May Temperature in Zakynthos

In May, Zakynthos awakens to mild and pleasant temperatures, making it an ideal time for travelers seeking warm escape before the summer heat sets in. With a minimum temperature of 13°C (56°F) and a comfortable average of 19°C (66°F), days are delightful. Temperatures can reach a maximum of 26°C (80°F), inviting visitors to enjoy the island's stunning beaches and lush landscapes. As the island transitions from spring to summer, the warmth gradually increases from the cooler months, creating an inviting atmosphere that's perfect for outdoor activities and exploring the local culture.

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

The chart illustrates May temperature patterns in Zakynthos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zakynthos, 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).
JanFebMarAprMayJunJulAugSepOctNovDec555657606672778076706559
Data source: Temperature data for Zakynthos 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 Zakynthos

In May on the beautiful island of Zakynthos, precipitation remains minimal, with an average of just 16 mm (0.6 in) spread over approximately 4 days. This marks a significant drop from the earlier months, such as January with a hefty 198 mm and February at 92 mm, highlighting the transition towards the drier summer months. As spring gives way to early summer, the decreasing rainfall creates a lovely atmosphere, perfect for enjoying the island's stunning landscapes and vibrant outdoor activities. While the rainfall slightly increases again in June, May stands out as a time when the island basks in pleasant weather, ultimately appealing to both locals and visitors alike.

May Precipitation Trends in Zakynthos

The chart displays monthly precipitation patterns in Zakynthos, 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 Zakynthos, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec198927430162215965115237203
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Zakynthos

In May, Zakynthos, Greece experiences a noticeable increase in humidity, reaching 79%, which marks the highest level for the month. This uptick is part of a gentle upward trend from the previous months, where humidity levels hovered around the mid-70s. As spring transitions into early summer, the air becomes more humid, enhancing the lush landscapes and vibrant flora of the island. Following May, humidity begins to decline slightly through the summer months, dropping to 75% in June and further decreasing to 74% in July. This pattern highlights the island's relatively humid climate during the spring, which gives way to slightly drier conditions as tourists flock to enjoy Zakynthos's beautiful beaches and breathtaking scenery.

May Average Humidity in Zakynthos

This chart illustrates the average monthly humidity levels in Zakynthos, 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 Zakynthos is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%73%73%75%79%75%74%68%66%69%73%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Zakynthos

As we enter May in Zakynthos, Greece, the UV Index reaches an impressive 9, signifying a very high risk of harm from unprotected sun exposure. This marks a continuation of the upward trend seen since April, where the UV Index peaked at 8. With a burn time of just 15 minutes, visitors should be particularly cautious, as the sun's intensity continues to rise into the summer months. The incremental increase from March's UV index of 6 to May’s is a clear indication that summer is just around the corner, making sun protection all the more essential. For detailed information about managing sun exposure throughout the year, check out Zakynthos UV Index.

Maximum UV Index Levels in Zakynthos for May

The chart shows the monthly maximum UV Index (UVI) for Zakynthos 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 Zakynthos typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108743
Data source: Zakynthos 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 Zakynthos

May in Zakynthos, Greece, is a true delight, basking in an impressive 400 hours of sunshine. This month marks a notable peak in the upward trend of daylight hours, following the steady increase from 207 hours in January to 348 hours in April. The warm spring sun transitions smoothly into the vibrant summer, with June and July boasting even more remarkable hours, reaching 408 and 420 hours, respectively. Overall, May stands out as a perfect time to enjoy the island's stunning landscapes and soothing Mediterranean vibes, as the sun shines brighter and longer, inviting both relaxation and adventure.

Monthly Sunshine Duration in Zakynthos: May Highlighted

The May sunshine duration represents the total number of hours Zakynthos 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.
JanFebMarAprMayJunJulAugSepOctNovDec207h267h334h348h400h408h420h393h344h315h268h255h
Data source: Zakynthos May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Zakynthos During May

As May rolls in, the likelihood of sunny weather in Zakynthos, Greece, reaches an impressive 72%, marking a delightful uptick from the preceding months. While January starts the year with a modest 34% chance of sunshine, February and March see a gradual climb, with respective figures of 64% and 59%. April maintains a steady 56%, hinting at the approaching warmth. Come May, visitors can confidently anticipate a significant improvement in sunny days, perfectly setting the stage for the summer months ahead. The trend continues to soar, with June, July, and August boasting a remarkable 88% and 97% likelihood of sun, promising sun-soaked adventures for those ready to explore this beautiful island.

Percentage of Sunny Days in May in Zakynthos

The chart illustrates the percentage of sunny days in Zakynthos 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 Zakynthos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%64%59%57%72%88%97%97%75%55%36%52%
Data source: Zakynthos May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Zakynthos in May

As spring blossoms into summer, Zakynthos, Greece experiences a delightful increase in daylight, truly elevating the charm of this stunning island. In May, daylight extends to a warm 14 hours, providing ample opportunity for both relaxation and exploration. This trend of lengthening days begins with January's modest 9 hours and gradually climbs, with April already showing a promising 13 hours. From May onward, daylight remains consistent at its peak through June, July, and a gentle decline begins in August, leading to 13 hours. The gradual tapering continues into autumn, with daylight reducing to 12 hours in September before dwindling back to 10 hours and finally 9 hours by year’s end. With this natural rhythm of daylight, May stands out as a vibrant month where the balance of light beckons travelers to enjoy Zakynthos' breathtaking landscapes.

Average Daylight Hours in Zakynthos for May

The chart illustrates the variation in daylight duration in Zakynthos throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 52m10h 47m11h 58m13h 11m14h 12m14h 43m14h 27m13h 32m12h 23m11h 10m10h 7m9h 34m
Data source: Zakynthos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Zakynthos

In May, Zakynthos experiences a gentle caress of breezes, with an average wind speed of 4.9 m/s (11 mph), marking a slight decline from the stronger winds of the earlier months. This tranquil atmosphere is perfect for outdoor activities, as the winds are calm enough to allow sunbathers to enjoy the stunning beaches without interruption. As the island transitions into the summer months, the wind speeds gradually diminish further, peaking in early spring and giving way to a more serene coastal experience. The winds in May create an ideal balance, maintaining the warmth of the Greek sun while offering just enough refreshment, making it a delightful time to explore all that Zakynthos has to offer.

Average May Wind Speed in Zakynthos

The chart displays monthly wind speed patterns in Zakynthos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.05.15.05.04.9 m/s4.24.84.54.05.15.76.8
Data source: Zakynthos May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Zakynthos Compares to Other Months

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

May and January present strikingly different weather patterns. In May, temperatures range from a mild 13°C (56°F) to a pleasant 26°C (80°F), with an average of 19°C (66°F). The month sees relatively low precipitation at 16 mm (0.6 in) spread over about 4 days, and humidity is around 79%. In contrast, January is much cooler, with temperatures ranging from 4°C (40°F) to 20°C (68°F) and an average of 13°C (55°F). The month is also significantly wetter, receiving 198 mm (7.8 in) of rainfall over 16 days, accompanied by slightly lower humidity at 76%. For more detailed insights, check out Zakynthos weather in January.

When comparing the weather in May and February, May emerges as a significantly warmer month, with average temperatures ranging from 13°C (56°F) to a pleasant 26°C (80°F), and only 16 mm (0.6 in) of precipitation across just 4 days. In contrast, February experiences much cooler temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 18°C (64°F), with substantial rainfall totaling 92 mm (3.6 in) over 11 days. While humidity is higher in May at 79%, February's humidity sits at a still notable 73%. For more detailed information, you can check out the Zakynthos weather in February.

In comparing the weather of May and March, there is a notable difference in temperature and precipitation. May enjoys a milder climate with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 26°C (80°F), averaging around 19°C (66°F), while March is cooler, with temperatures spanning from 6°C (44°F) to 19°C (66°F) and an average of 14°C (57°F). Additionally, May experiences significantly less rainfall, with only 16 mm (0.6 in) over about 4 days, compared to March's 74 mm (2.9 in) of precipitation spread over 11 days. Humidity levels are slightly higher in May at 79%, compared to March's 73%. For detailed information on March weather, you can visit Zakynthos weather in March.

In comparing the weather between April and May, May tends to be warmer and drier. The average temperature in May reaches 19°C (66°F), with a maximum of 26°C (80°F), while April's average is lower at 16°C (61°F) with a peak of 24°C (76°F). Precipitation also decreases in May, with only 16 mm (0.6 in) over 4 days, compared to April's 30 mm (1.2 in) over 5 days. Additionally, May has a slightly higher humidity level at 79%, compared to April's 75%. For more detailed insights into April's climate, check out Zakynthos weather in April.

In comparing the weather between May and June, June tends to be warmer, with average temperatures rising from 19°C (66°F) in May to 22°C (72°F) in June. The maximum temperatures also increase, peaking at 28°C (83°F) in June compared to 26°C (80°F) in May. However, while May has a slightly higher humidity level at 79%, June enjoys a drier feel with humidity at 75%. Interestingly, June sees a bit more rainfall than May, with 22 mm (0.9 in) of precipitation over just 2 days, compared to May's 16 mm (0.6 in) spread over 4 days. For more specifics on June weather, check out Zakynthos weather in June.

In comparing the weather between May and July, May experiences cooler temperatures with a minimum of 13°C (56°F) and an average of 19°C (66°F), reaching a maximum of 26°C (80°F). The month also sees relatively higher humidity at 79% and approximately 16 mm (0.6 in) of precipitation spread over 4 days. In contrast, July brings warmer and more stable weather, with a minimum of 20°C (69°F), an average of 25°C (77°F), and a maximum of 29°C (85°F). This month is drier, only experiencing about 15 mm (0.6 in) of precipitation on just 1 day, and slightly lower humidity at 74%. For more details on weather conditions during this vibrant summer month, visit Zakynthos weather in July.

May and August present notably different weather patterns. In May, temperatures range from a comfortable 13°C (56°F) at night to a pleasant 26°C (80°F) during the day, with an average of 19°C (66°F). The month sees a higher humidity of 79% and some light precipitation, totaling 16 mm (0.6 in) over about four days. In contrast, August offers a warm climate with minimum temperatures of 22°C (72°F) and average highs reaching 30°C (87°F); the average temperature settles around 27°C (80°F). The humidity decreases to 68%, and rainfall is minimal, at just 9 mm (0.3 in) across only one day. For more specific details on summer conditions, check out Zakynthos weather in August.

May tends to be milder, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 26°C (80°F), alongside relatively low precipitation of just 16 mm (0.6 in) over approximately 4 days and high humidity at 79%. In contrast, September experiences warmer temperatures, with averages between 18°C (64°F) and 29°C (84°F), and higher precipitation levels reaching 65 mm (2.6 in) over 5 days, though with a more comfortable humidity level of 66%. For more specific insights about weather conditions during this month, you can check Zakynthos weather in September.

In May, the weather is generally mild and pleasant, with temperatures ranging from a minimum of 13°C (56°F) to an average of 19°C (66°F), peaking at 26°C (80°F). The month sees low precipitation of 16 mm (0.6 in) over about 4 days, and humidity at a relatively high 79%. In contrast, October brings slightly warmer temperatures, with a minimum of 16°C (60°F), an average of 21°C (70°F), and a maximum of 27°C (81°F). However, it is significantly wetter, with total precipitation reaching 115 mm (4.5 in) over 8 days, and a decrease in humidity to 69%. For a closer look at weather conditions during this time, check out Zakynthos weather in October.

May and November present distinct weather patterns. In May, temperatures range from a minimum of 13°C (56°F) to a maximum of 26°C (80°F), with an average of 19°C (66°F). The month experiences relatively low precipitation at 16 mm (0.6 in) over only 4 days, along with a high humidity of 79%. In contrast, November sees cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 23°C (75°F), averaging 18°C (65°F). However, November is much wetter, receiving 237 mm (9.3 in) of precipitation over 15 days, while humidity remains lower at 73%. For more specific details about conditions during this latter month, check out this link: Zakynthos weather in November.

In May, Zakynthos enjoys a mild and pleasant climate, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 26°C (80°F), averaging around 19°C (66°F). The month sees limited precipitation, averaging just 16 mm (0.6 in) over about 4 days, while humidity levels are relatively high at 79%. In contrast, December brings cooler temperatures, with a minimum of 8°C (48°F) and a maximum of 20°C (67°F), resulting in an average of 15°C (59°F). December is significantly wetter, with 203 mm (8.0 in) of rainfall spread over 18 days, and a slightly lower humidity of 75%. For more details on December weather, you can visit Zakynthos weather in December.

Compare Zakynthos's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Zakynthos

As May ushers in the delightful warmth of spring in Zakynthos, you can expect a noticeable shift from the cooler months preceding it. With average temperatures reaching a comfortable 19°C (66°F) and highs soaring to 26°C (80°F), this month offers an inviting escape for sun-seekers. While humidity remains relatively high at 79%, the occasional rainfall—averaging just 16 mm over about four days—is a refreshing contrast to the often sweltering summer months ahead. Therefore, if you're planning a visit to this stunning island, May presents a perfect balance of pleasant weather and fewer crowds, making it an ideal time to explore its beautiful landscapes. For more detailed insights, check out the full Zakynthos Climate.