May Weather in Symi, Greece

Last updated: August 21, 2025

May in Symi, Greece is characterized by a delightful average temperature of 20°C (68°F), making it an ideal time for visitors to enjoy mild, sunny days. With maximum temperatures reaching 26°C (79°F) and lows around 15°C (60°F), the weather is pleasantly warm, perfect for exploring the island. Rain is rare, with just 7 mm (0.3 in) of precipitation occurring over a single day, ensuring that outdoor activities won't be hindered. Additionally, the humidity level sits at a comfortable 73%, providing a refreshing atmosphere as the vibrant spring blossoms create an enchanting backdrop for your adventures.

May Temperature in Symi

As May unfolds in Symi, Greece, the island begins to embrace the warmth of early summer. This enchanting month witnesses a marked rise in temperatures, with minimums climbing to 15°C (60°F) and averages reaching 20°C (68°F). The peak temperatures soar to a delightful 26°C (79°F), creating a perfect backdrop for exploring the island's stunning landscapes and vibrant culture. In stark contrast to the cooler preceding months, May's balmy weather sets the stage for outdoor adventures, beach outings, and al fresco dining, making it an ideal time for travelers seeking to soak in the sun-drenched charm of this Mediterranean gem.

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

The chart illustrates May temperature patterns in Symi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Symi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec565858626873777977726761
Data source: Temperature data for Symi 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 Symi

In Symi, Greece, the month of May marks a significant transition towards nearly dry summer days, with only 7 mm (0.3 in) of precipitation recorded, and rainfall occurring on just a single day. This sharp decline follows April's slightly wetter conditions, which brought 27 mm (1.0 in) over four days, revealing a steady decrease in moisture as the region approaches the sun-drenched summer months. The trend clearly accentuates the island's dry climate, as precipitation drops further to a mere 4 mm (0.2 in) in June and completely ceases through July and August. Such patterns highlight the effectively Mediterranean climate, characterized by its distinct wet winters and arid summers, making May a delightful time for visitors seeking pleasant weather while still enjoying the lush remnants of spring.

May Precipitation Trends in Symi

The chart displays monthly precipitation patterns in Symi, 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 Symi, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1698685277400149117216
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Symi

May in Symi, Greece, marks a subtle transition in the island's humidity levels. With an average humidity of 73%, it reflects a slight increase from the drier month of April, while setting the stage for the warmer, more comfortable summer months ahead. As temperatures rise, the humidity begins to gradually decrease, peaking in cooler months such as January and November, where it reaches 83% and 78% respectively. This creates a pleasant balance in May, offering visitors a refreshing atmosphere just before the heat of summer sets in. Overall, the gradual shift in humidity throughout the year highlights Symi's Mediterranean charm, inviting travelers to bask in its mild, pleasant spring climate.

May Average Humidity in Symi

This chart illustrates the average monthly humidity levels in Symi, 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 Symi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%80%72%73%66%52%43%49%68%78%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Symi

As May arrives in Symi, Greece, the UV Index escalates to a striking 10, categorizing it as very high and signaling a burn time of just 15 minutes. This sharp increase from April's 9 spotlights a trend of intensifying sun exposure as the region shifts toward summer. The month of May not only marks the transition to more prolonged outdoor activities but also serves as a reminder to stay vigilant about sun protection. With the UV Index peaking in June at 11, it’s essential to plan accordingly and safeguard your skin throughout this vibrant time of year. For more detailed information, check out the Symi UV Index.

Maximum UV Index Levels in Symi for May

The chart shows the monthly maximum UV Index (UVI) for Symi 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 Symi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109743
Data source: Symi 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 Symi

As spring blossoms into summer, May in Symi, Greece stands out with a delightful 400 hours of sunshine—the perfect prelude to the sun-drenched months ahead. This vibrant month marks a significant rise from 354 hours in April, showcasing a clear trend of increasing daylight that continues into June, when the sun shines for an impressive 409 hours. The steady climb from 220 hours in January to the brilliance of May illustrates the island's transition into its sun-kissed season, inviting visitors to bask in its radiant beauty. The warmth of May not only heralds longer days but also enchants with the lush landscapes and vibrant culture that thrive under the Greek sun, setting the stage for an unforgettable summer experience.

Monthly Sunshine Duration in Symi: May Highlighted

The May sunshine duration represents the total number of hours Symi 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.
JanFebMarAprMayJunJulAugSepOctNovDec220h271h336h354h400h409h422h396h349h326h277h269h
Data source: Symi May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Symi During May

In May, the island of Symi, Greece, welcomes the arrival of warmer weather, boasting an impressive 80% chance of sunny days. This marks a notable increase from the earlier months; in April, the likelihood of sunshine dipped to 59%, paving the way for a brighter May. As spring unfolds, the trend clearly shows a dramatic ascent in sunshine, with only the summer months of June (96%) and beyond promising even more sun-soaked days. This delightful shift in weather not only enhances the island's natural beauty but also invites visitors to bask in the enchanting atmosphere, making May a particularly appealing time to experience Symi.

Percentage of Sunny Days in May in Symi

The chart illustrates the percentage of sunny days in Symi 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 Symi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%70%70%59%80%96%98%100%97%80%54%48%
Data source: Symi May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Symi in May

As spring unfolds into May, Symi, Greece basks in an inviting 14 hours of daylight, marking it as a pivotal transition point in the year. The increasing daylight hours from just 9 hours in January signify the island's awakening from winter slumber. After a steady climb through the months, daylight reaches its zenith during the summer months, maintaining a warm 14 hours from May through July. This pattern gently tapers as autumn approaches, with daylight gradually decreasing to 10 hours in November and returning to 9 hours by December. The rhythm of light throughout the year not only enhances the natural beauty of Symi but also invites visitors to immerse themselves in its vibrant culture and stunning landscapes while basking in the generous warmth of the sun.

Average Daylight Hours in Symi for May

The chart illustrates the variation in daylight duration in Symi throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 57m10h 50m11h 58m13h 8m14h 7m14h 36m14h 21m13h 29m12h 22m11h 12m10h 12m9h 41m
Data source: Symi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Symi

In May, Symi, Greece experiences a notable shift in its wind patterns, with the average wind speed dropping to 5.9 m/s (13 mph)—the calmest point of the year. This decline follows a series of moderately brisk months, where January through April maintained speeds between 7.2 and 7.7 m/s (16-17 mph). The springtime gentle breezes create a serene atmosphere, perfect for leisurely outdoor activities and enjoying the stunning seaside vistas. As the island transitions into the summer, wind speeds gradually pick back up, suggesting that while May brings tranquility, the energetic winds of summer are just around the corner.

Average May Wind Speed in Symi

The chart displays monthly wind speed patterns in Symi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.47.27.77.25.9 m/s7.56.57.47.15.44.97.6
Data source: Symi May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Symi Compares to Other Months

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

May presents a much warmer and drier climate compared to January. With average temperatures ranging from a mild 15°C (60°F) to a pleasant 26°C (79°F), May enjoys only 7 mm (0.3 in) of precipitation across just one day. In contrast, January typically sees cooler temperatures, with an average ranging from 4°C (40°F) to 19°C (66°F), accompanied by significantly higher precipitation of 169 mm (6.6 in) over 15 days. Additionally, humidity levels in May are slightly lower at 73%, compared to the higher 83% experienced in January. For a closer look at conditions during this winter month, check Symi weather in January.

In comparing the weather between February and May, May boasts significantly warmer temperatures, with an average of 20°C (68°F) compared to February's cooler average of 14°C (58°F). While February experiences more frequent rain, accumulating 86 mm (3.4 in) over 10 days, May offers a drier climate with just 7 mm (0.3 in) of precipitation occurring on only one day. Additionally, humidity levels are slightly lower in May at 73% versus the 81% experienced in February, making May a more comfortable month overall. For more details on February weather, you can visit Symi weather in February.

In comparing the weather of May and March, May brings warmer temperatures with minimums around 15°C (60°F) and maximums reaching 26°C (79°F), while March is notably cooler, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (65°F). May also enjoys significantly less precipitation, receiving only 7 mm (0.3 in) over just one day, in stark contrast to March's 85 mm (3.3 in) spread out over eight days, which indicates a much wetter and cloudier month. Additionally, while May has a comfortable humidity level of 73%, March's humidity sits at a slightly higher 80%. For more insights into March weather, you can check Symi weather in March.

In comparing the weather of April and May, we can see a noticeable warming trend. May features a minimum temperature of 15°C (60°F) and an average of 20°C (68°F), compared to April's cooler minimum of 10°C (51°F) and average of 17°C (62°F). The maximum temperatures also rise, reaching 26°C (79°F) in May, while April peaks at 22°C (72°F). Precipitation is significantly reduced in May, with only 7 mm (0.3 in) falling over just 1 day, in contrast to April's 27 mm (1.0 in) over 4 days. Humidity remains fairly constant, at 73% in May and 72% in April. For more detailed insights, check out Symi weather in April.

May and June offer a pleasant transition in weather conditions. In May, temperatures range from a minimum of 15°C (60°F) to a maximum of 26°C (79°F), with an average temperature of 20°C (68°F). The month sees a total precipitation of 7 mm (0.3 in) over just one day, contributing to a relatively high humidity level of 73%. In contrast, June enjoys slightly warmer temperatures, with a minimum of 16°C (62°F), an average of 23°C (73°F), and a maximum of 28°C (84°F). This month boasts lower precipitation at just 4 mm (0.2 in) over zero days, resulting in decreased humidity at 66%. For more details on June's weather, visit Symi weather in June.

May and July offer contrasting weather conditions that highlight the transition into summer. In May, temperatures range from a mild 15°C (60°F) at night to a pleasant 26°C (79°F) during the day, with an average of 20°C (68°F). This month experiences 7 mm of precipitation over just one day, alongside a higher humidity level at 73%, providing a fresh feel to the air. In stark contrast, July heats up significantly, with temperatures starting at a minimum of 21°C (70°F) and reaching maximums of 30°C (87°F), averaging 25°C (78°F). Notably, July sees no precipitation and enjoys lower humidity at 52%, resulting in a drier and hotter climate. For more details about July weather, check out Symi weather in July.

May and August present contrasting weather patterns. In May, temperatures range from a minimum of 15°C (60°F) to a maximum of 26°C (79°F), with an average of around 20°C (68°F). The month sees a moderate level of precipitation at 7 mm (0.3 in) over just a single day, accompanied by a higher humidity level of 73%. In stark contrast, August is warmer, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 31°C (88°F), averaging 26°C (80°F). Notably, August experiences no rainfall, as indicated by 0 mm of precipitation over 0 days, and the humidity drops significantly to 43%. For more details, you can check Symi weather in August.

May and September offer distinct weather experiences. In May, temperatures range from a minimum of 15°C (60°F) to a maximum of 26°C (79°F), with an average of 20°C (68°F). The month sees some moisture, with about 7 mm of precipitation over a single day and a humidity level of 73%. In contrast, September enjoys warmer conditions, with minimum temperatures around 20°C (69°F) and maximums reaching 28°C (83°F), and an average of 25°C (77°F). This month is much drier, with only 1 mm of precipitation and no rainy days, coupled with a lower humidity level of 49%. For more information, check out Symi weather in September.

In May, the weather is generally mild with temperatures ranging from a minimum of 15°C (60°F) to an average of 20°C (68°F), peaking at 26°C (79°F). The month experiences limited rainfall, averaging just 7 mm (0.3 in) over about one day, contributing to a relatively humid atmosphere at 73%.

In contrast, October presents slightly warmer temperatures, starting at a minimum of 16°C (60°F) and averaging 22°C (72°F), while still reaching a maximum of 26°C (79°F). However, this month sees significantly more rainfall, with total precipitation of 49 mm (1.9 in) spread over four days, resulting in lower humidity levels at 68%. For a detailed look at the weather in October, check out Symi weather in October.

May and November present quite different weather conditions. In May, temperatures range from a minimum of 15°C (60°F) to a maximum of 26°C (79°F), with an average of 20°C (68°F). The month is relatively dry, experiencing only 7 mm (0.3 in) of precipitation over just 1 day and a humidity level of 73%. In contrast, November sees cooler temperatures, with a minimum of 12°C (55°F) and a maximum of 24°C (75°F), averaging 19°C (67°F). However, it is significantly wetter, receiving 117 mm (4.6 in) of rain over 8 days, and has a slightly higher humidity of 78%. For a detailed look at November's weather, you can check Symi weather in November.

May and December exhibit striking contrasts in weather conditions. In May, temperatures range from a mild 15°C (60°F) to a pleasant 26°C (79°F), with an average of 20°C (68°F). The month is relatively dry, receiving only 7 mm (0.3 in) of precipitation over just one day, accompanied by a humidity level of 73%. In stark contrast, December experiences cooler temperatures, with a minimum of 10°C (49°F) and a maximum of 20°C (68°F), averaging 16°C (61°F). This month is significantly wetter, seeing 216 mm (8.5 in) of rain spread across 17 days, along with a higher humidity of 84%. For more detailed insights, check out Symi weather in December.

Compare Symi's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Symi

As spring unfolds in Symi, May ushers in a delightful shift in weather compared to the preceding months, with warmer temperatures and significantly reduced rainfall. With an average daily temperature hovering around 20°C (68°F) and just a hint of precipitation, visitors can bask in the sunshine while enjoying the island’s vibrant scenery. The humidity, while still present, is manageable, making it an ideal time for outdoor exploration and relaxation. As you plan your visit, be sure to check out more detailed information about the local climate at Symi Climate to make the most of your experience!