May Weather in San Marco, Italy

Last updated: March 24, 2025

In San Marco, Italy, the weather in May offers a delightful mix of warmth and variability. With maximum temperatures reaching a pleasant 31°C (89°F) and an average of 18°C (65°F), the month invites both locals and tourists to enjoy the outdoors. However, visitors should be prepared for the likelihood of 16 days of precipitation, accumulating to 131 mm (5.1 in), and an average humidity level of 70%. This combination of warmth and moisture creates a lush atmosphere, perfect for exploring the beauty and charm of this iconic region.

May Temperature in San Marco

In May, temperatures in San Marco, Italy, begin to embrace the warmth of spring, creating the perfect backdrop for outdoor adventures. With a minimum of 7°C (45°F) and an inviting average of 18°C (65°F), the air feels refreshing yet comfortable. As the days progress, highs can reach up to 31°C (89°F), marking a significant leap from the cooler months. This trend showcases a steady rise from the spring chill, drawing both locals and tourists to enjoy the vibrant atmosphere filled with blooming flowers and outdoor festivals. The pleasant weather of May sets the stage for a delightful transition into summer, encouraging exploration of San Marco's charming streets and historic sites.

May Weather in San Marco: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Marco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec384449576574777869595040
Data source: Temperature data for San Marco 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 San Marco

May marks a significant shift in precipitation patterns in San Marco, Italy, with rainfall totaling 131 mm (5.1 in) over a notably wetter month. This increase reflects a substantial rise from the previous months, particularly April's 96 mm (3.8 in). Notably, May also experiences 16 days of precipitation, the highest of any month in the year, showcasing a trend of increased rain during the spring season that sets the stage for lush landscapes and vibrant flora. As the city transitions into summer, this surge in rainfall can be seen as a crucial factor in supporting the rich natural beauty and agricultural viability of the region, before the drier months of June and July arrive.

May Precipitation Trends in San Marco

The chart displays monthly precipitation patterns in San Marco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec335557961317277731148713887
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Marco

May in San Marco, Italy, offers a moderate humidity level of 70%, continuing the trend of decreasing moisture observed since earlier in the year. While winter months lingered with high humidity peaking at 87% in January, conditions began to shift as spring approached. By April, the humidity dipped to 71%, setting the stage for May's relatively comfortable atmosphere. This progressive decline leads into the drier summer months, where June sees a further drop to 65%, and July and August often enjoy even lower levels. Therefore, May strikes a balance, providing visitors with a pleasant blend of warm weather and manageable humidity as they explore the enchanting beauty of San Marco.

May Average Humidity in San Marco

This chart illustrates the average monthly humidity levels in San Marco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%79%69%71%70%65%61%54%66%83%88%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Marco

As spring transitions into summer in San Marco, Italy, May brings an elevated UV Index of 8, marking a shift to the very high exposure category. With a burn time reduced to just 15 minutes, it’s crucial for sun seekers to stay vigilant about sun protection. This increase in UV intensity follows a progressive rise through the months; starting with a low UV Index of 2 in January and culminating in a significant jump from April's 6 to May's 8. As daylight becomes more potent, it's essential to remain cautious, especially now, when outdoor activities may become more frequent. For comprehensive information about UV levels throughout the year, visit San Marco UV Index.

Maximum UV Index Levels in San Marco for May

The chart shows the monthly maximum UV Index (UVI) for San Marco 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: San Marco 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 San Marco

As May unfolds in San Marco, Italy, the city basks in 380 hours of glorious sunshine, marking it as one of the sunniest months of the year. This radiant display follows a steady increase from the cooler months, where January offered a modest 188 hours. The warmth gradually builds through February and March, and by April, the hours of sunlight surge to 346, hinting at the vibrant summer ahead. The trend continues into June and July, where the sunshine peaks, with July enjoying a delightful 427 hours. By observing these patterns, it becomes clear that May is not only a beautiful prologue to summer but also a time when the sun truly begins to embrace this enchanting Italian locale.

Monthly Sunshine Duration in San Marco: May Highlighted

The May sunshine duration represents the total number of hours San Marco 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.
JanFebMarAprMayJunJulAugSepOctNovDec188h235h311h346h380h414h427h395h333h294h226h207h
Data source: San Marco May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Marco During May

In May, the likelihood of enjoying sunny weather in San Marco, Italy, stands at 43%, a slight dip from the previous month of April when it was at 45%. Interestingly, this reflects a trend where the promise of sun begins to wane compared to the peak seen in March, which boasts a sunny chance of 61%. As spring transitions to summer, June follows with an improved 55% chance of sunshine, suggesting that while May may not be the sunniest month, it's still a pleasant precursor to the warmer days ahead. The overall trajectory indicates that as the seasons shift, sun-seekers can look forward to more reliable sunny skies in the coming months.

Percentage of Sunny Days in May in San Marco

The chart illustrates the percentage of sunny days in San Marco 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 San Marco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%43%61%45%43%55%50%59%55%47%34%44%
Data source: San Marco May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Marco in May

In San Marco, Italy, the enchanting arrival of May heralds a delightful surge in daylight, offering 14 hours of sunshine that encourages outdoor exploration and relaxation. This increase follows a steady climb from 11 hours in March and 13 hours in April, showcasing a clear trend of longer days as spring unfolds. The daylight duration peaks in June at 15 hours, creating an inviting atmosphere for summer activities. As the months progress, daylight slowly wanes from August onwards, dipping back to 12 hours in September and eventually receding to 9 hours by November. This captivating rhythm of light not only enhances the region's natural beauty but also enriches the cultural experiences that thrive during these vibrant months.

Average Daylight Hours in San Marco for May

The chart illustrates the variation in daylight duration in San Marco throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 9m10h 23m11h 56m13h 32m14h 54m15h 35m15h 13m14h12h 29m10h 53m9h 29m8h 46m
Data source: San Marco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in San Marco

May in San Marco, Italy, welcomes a gentle increase in average wind speed, reaching 2.2 m/s (5 mph). This slight uptick from the previous months heralds a refreshing shift, contrasting with the winter's calmer breezes, which lingered around 1.5 to 1.9 m/s. As spring unfolds, May's winds become a bit more playful, enhancing the atmosphere for leisurely strolls along the picturesque canals. Looking ahead, the winds will taper off again in June, returning to a more serene pace. This delightful transition reflects the lively essence of San Marco, where each gentle gust carries whispers of the enchanting summer days to come.

Average May Wind Speed in San Marco

The chart displays monthly wind speed patterns in San Marco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.71.82.02.2 m/s1.71.91.91.71.72.01.5
Data source: San Marco May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in San Marco Compares to Other Months

The weather in San Marco 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 San Marco and find detailed weather information for every month.

May and January present stark contrasts in weather conditions. In May, temperatures range from a pleasant 7°C (45°F) at night to a maximum of 31°C (89°F) during the day, with an average temperature of around 18°C (65°F). This month also sees substantial rainfall, with about 131 mm (5.1 in) of precipitation spread over 16 days, contributing to a humidity level of 70%. In contrast, January is much colder, with temperatures dipping to a minimum of -5°C (22°F) and peaking at only 14°C (58°F), leading to an average of about 3°C (39°F). Rainfall is considerably less, averaging 33 mm (1.3 in) over just 3 days, while humidity rises to 87%. For a more detailed look at January weather, you can visit San Marco weather in January.

May and February present starkly contrasting weather conditions. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F). This month experiences substantial rainfall, accumulating 131 mm (5.1 in) over 16 days, while humidity hovers around 70%. In contrast, February features much colder temperatures, with a minimum of -5°C (24°F) and a maximum of 21°C (71°F), resulting in a more moderate average of 6°C (44°F). Precipitation is significantly lower in February, totaling 55 mm (2.2 in) across only 6 days, accompanied by higher humidity at 79%. For more detailed insights about February's conditions, check out San Marco weather in February.

In comparing the weather between May and March, we see a significant transition in temperatures and precipitation. May experiences a much warmer climate, with minimum temperatures of 7°C (45°F) and an average high of 31°C (89°F), while March is notably cooler, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F). Additionally, May tends to be wetter, featuring 131 mm (5.1 in) of precipitation over 16 days, compared to March, which has only 57 mm (2.2 in) spread across 8 days. Interestingly, while both months have similar humidity levels, May's higher temperature brings a more comfortable feel. For more details, you can check out San Marco weather in March.

In comparing the weather between April and May, May exhibits a broader range of temperatures, with a minimum of 7°C (45°F), an average of 18°C (65°F), and a maximum reaching 31°C (89°F). In contrast, April features cooler temperatures, with a minimum of -1°C (30°F), an average of 14°C (57°F), and a maximum of 28°C (83°F). While May experiences more precipitation at 131 mm (5.1 in) over 16 days, April has less rain, totaling 96 mm (3.8 in) over just 9 days. Both months have similar humidity levels, with April at 71% and May slightly lower at 70%. For more detailed insights about April weather, you can visit San Marco weather in April.

The weather in May presents a more varied climate, with temperatures ranging from a chilly 7°C (45°F) at night to a warm 31°C (89°F) during the day, averaging around 18°C (65°F). However, it also sees considerable precipitation, accumulating 131 mm (5.1 in) over 16 days and maintaining a humidity level of 70%. In contrast, June offers a more stable warmth, with minimum temperatures of 12°C (54°F) and highs reaching up to 38°C (100°F), averaging at 24°C (75°F). This month is also drier, with only 72 mm (2.8 in) of rain over just 8 days, and slightly lower humidity at 65%. For more details, you can check San Marco weather in June.

May weather is quite variable, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (89°F) and an average of 18°C (65°F). It experiences higher precipitation, totaling 131 mm (5.1 in) over 16 days, along with a humidity level of 70%. In contrast, July tends to be warmer and drier, with temperatures peaking at 37°C (98°F) and an average of 25°C (78°F). The month has significantly less rainfall at 77 mm (3.0 in) across 10 days, and humidity drops to 61%. For more detailed weather information, see San Marco weather in July.

May and August present quite different weather patterns. In May, temperatures range from a cool minimum of 7°C (45°F) to a warm maximum of 31°C (89°F), with an average temperature of 18°C (65°F). This month is marked by substantial rainfall, totaling 131 mm (5.1 in) across 16 days, coupled with a high humidity level of 70%. In contrast, August boasts warmer temperatures, with a minimum of 13°C (55°F), an average of 26°C (78°F), and peaks reaching a scorching 40°C (104°F). Additionally, precipitation drops significantly to just 73 mm (2.9 in) over 8 days, accompanied by lower humidity at 54%. For more details about weather during this sunny month, check out the link for San Marco weather in August.

May and September present contrasting yet pleasant weather conditions. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F). The month experiences considerable rainfall, totaling 131 mm (5.1 in) over 16 days, and humidity levels hover around 70%. In comparison, September showcases slightly warmer temperatures, with a minimum of 8°C (47°F), an average of 20°C (69°F), and a maximum of 32°C (90°F). Precipitation is less frequent, totaling 114 mm (4.5 in) over just 10 days, and humidity dips to 66%. For a more detailed look at weather in September, check out San Marco weather in September.

In May, the weather is generally warmer, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (89°F), while October sees cooler conditions with temperatures between 4°C (39°F) and 27°C (80°F). May also experiences significantly more rainfall, accumulating 131 mm (5.1 in) over approximately 16 days, compared to October's 87 mm (3.4 in) over just 7 days. Moreover, humidity levels are higher in October at 83% compared to May's 70%, creating a more damp atmosphere as the month progresses. For those interested in specific conditions, more information can be found in this link: San Marco weather in October.

May and November present contrasting weather conditions, reflecting the transition from spring to late autumn. In May, temperatures range from a mild 7°C (45°F) to a warm 31°C (89°F), averaging around 18°C (65°F), with a humidity level of 70%. The rainfall during this month is significant, with 131 mm (5.1 in) spread over 16 days. In contrast, November sees much cooler temperatures, with lows reaching -3°C (27°F) and highs peaking at 21°C (69°F), averaging just 10°C (50°F). This month experiences slightly more precipitation at 138 mm (5.4 in) over 11 days, coupled with a higher humidity of 88%. For more specific information, you can check San Marco weather in November.

May and December present contrasting weather patterns, with May enjoying milder temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (89°F) and an average of 18°C (65°F). This month sees considerable rainfall, with 131 mm (5.1 in) falling over 16 days, and humidity levels at 70%. In contrast, December experiences much colder temperatures, with lows of -3°C (27°F) and highs reaching only up to 15°C (60°F), averaging around 5°C (41°F). Precipitation in December is lower at 87 mm (3.4 in) across just 7 days, albeit with higher humidity at 85%. For more detailed insights into December weather, you can check San Marco weather in December.

Compare San Marco's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in San Marco

As May arrives in San Marco, the weather transforms significantly from the cooler months, making way for a more vibrant and warmer climate. With average temperatures climbing to a pleasant 18°C (65°F), you can expect delightful days under the sun, juxtaposed against the sporadic showers that give May its character, leading to a total precipitation of 131 mm across about 16 days. The humidity floats around 70%, creating a refreshing environment but reminding us of spring’s lingering embrace. This transitional month is an excellent time to experience the blossoming beauty of the region, making it a standout choice before the summer heat peaks. For more detailed insights, visit San Marco Climate.