May Weather in Grosseto, Italy

Last updated: March 24, 2025

In Grosseto, Italy, May unveils a delightful interplay of warm temperatures and refreshing breezes. The maximum temperature reaches a pleasant 29°C (85°F), while the average settles at a comfortable 18°C (65°F), ensuring perfect conditions for outdoor activities. Visitors can expect a cooler touch at night, with a minimum temperature of 9°C (48°F). Although May sees about 57 mm (2.2 in) of precipitation spread over approximately 10 days, the humidity of 69% adds a refreshing quality to the air. Overall, May in Grosseto is a beautiful blend of warmth and occasional rain, making it an ideal month for exploring this charming Italian destination.

May Temperature in Grosseto

In Grosseto, Italy, May marks a delightful transition into warmer weather, with temperatures showcasing a significant rise from the chillier months. The month starts with a mild minimum of 9°C (48°F), ushering in an average of 18°C (65°F), which invites outdoor activities and leisurely strolls. As the days progress, the warmth peaks at a charming 29°C (85°F), perfect for enjoying the region’s stunning landscapes and vibrant attractions. Compared to the cooler spring months, May reflects a pronounced warming trend, suggesting that summer is just around the corner, enticing visitors to bask in the beauty of Tuscany under increasingly sunny skies.

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

The chart illustrates May temperature patterns in Grosseto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495153586473787973655852
Data source: Temperature data for Grosseto 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 Grosseto

May in Grosseto, Italy, marks a notable transition in precipitation patterns as the region prepares for the summer months. With 57 mm (2.2 inches) of rainfall recorded over 10 days, it is slightly wetter than April, which also had 56 mm (2.2 inches) but over fewer days. This increase hints at a pattern where late spring sees a slight uptick in rainfall as the landscape flourishes before the dry heat of summer takes hold. Wednesdays, often cloudy, contribute to this month's charm, setting the stage for the warm sunny days ahead while nourishing the vibrant flora that draws visitors to the region. The rainfall in May serves as a gentle reminder of nature’s rhythm, ensuring the charm of Grosseto remains lush and inviting as the year progresses.

May Precipitation Trends in Grosseto

The chart displays monthly precipitation patterns in Grosseto, 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.
JanFebMarAprMayJunJulAugSepOctNovDec51565256571722136688160103
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Grosseto

In Grosseto, Italy, the month of May experiences a moderate humidity level at 69%, making it a comfortable transition from the wetter spring months. As temperatures gently rise through the year, humidity levels show a noticeable trend towards dryness, particularly in the summer months of June and July, where they fall to 62% and 57%, respectively. This decrease in humidity not only enhances the warmth but also adds to the allure of the Tuscan summer. In contrast, the year begins with significantly higher humidity, peaking in January at 84%, then gradually declining through February and March. After May, humidity begins to rise again in the fall and winter months, with October and November witnessing a return to more humid conditions at 79% and 84%. Overall, Grosseto's climate showcases a distinct seasonal shift, appealing to those who enjoy a diverse weather experience throughout the year.

May Average Humidity in Grosseto

This chart illustrates the average monthly humidity levels in Grosseto, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%68%70%69%62%57%55%66%79%84%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Grosseto

In May, Grosseto, Italy, experiences a significant surge in the UV Index, reaching a level of 8, categorized as very high. This marks a sharp increase from April's index of 7, emphasizing the need for sun protection as burn times reduce to just 15 minutes. As the spring transitions into summer, residents and visitors should be mindful of greater sun exposure and take necessary precautions, especially since this trend continues into June with an even higher index of 10. The upward trajectory of UV levels from low in January to very high by May highlights the importance of adapting sun safety measures accordingly. For more detailed information, check the Grosseto UV Index.

Maximum UV Index Levels in Grosseto for May

The chart shows the monthly maximum UV Index (UVI) for Grosseto 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457810997532
Data source: Grosseto 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 Grosseto

In Grosseto, Italy, May shines brightly as the month that marks the peak of spring sunshine, offering 401 hours of glorious sunlight. This delightful increase from 355 hours in April illustrates a steady ascent in brightness as the region transitions into the warmer months. Following May, June continues the trend with 419 hours, creating a seamless flow of light that encourages outdoor adventures. As summer unfolds, July reaches a tantalizing 433 hours, showcasing the height of sunshine before slightly tapering off in August with 403 hours. This gradual decline evokes the cozy embrace of autumn, reminding us that while the days may grow shorter, the sun’s warm rays linger beautifully throughout the year.

Monthly Sunshine Duration in Grosseto: May Highlighted

The May sunshine duration represents the total number of hours Grosseto 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.
JanFebMarAprMayJunJulAugSepOctNovDec200h258h327h355h401h419h433h403h341h314h247h237h
Data source: Grosseto May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Grosseto During May

In Grosseto, Italy, May marks a transitional month in the weather pattern, featuring a 49% chance of sunny weather. As spring progresses, the likelihood of sunshine dips slightly from the highs reached in March, where sun-seekers enjoyed a 65% chance. This month serves as a bridge to the more reliably sunny days of summer, with June escalating to a 59% chance of sunshine. While May may not boast the most favorable odds for endless sunny days, it still offers a pleasant mix of weather, making it an inviting time for both locals and visitors to enjoy the blooming landscapes under the Italian sun.

Percentage of Sunny Days in May in Grosseto

The chart illustrates the percentage of sunny days in Grosseto 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 Grosseto experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%54%65%51%49%59%69%73%60%48%36%49%
Data source: Grosseto May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Grosseto in May

In Grosseto, Italy, the transition into May heralds a delightful increase in daylight, with the region basking in 14 hours of sunlight—a significant leap from the 13 hours enjoyed in April. This upward trend continues into the summer months, peaking in June with an impressive 15 hours. As the year progresses, daylight gradually diminishes, with July and August seeing a slight decrease to 14 and 13 hours, respectively. By the fall, daylight begins its descent, dropping to 10 hours in October and further down to 9 hours by November. This cyclical dance of daylight not only marks the changing seasons but also invites residents and visitors alike to revel in the longer, sun-filled days of late spring and early summer.

Average Daylight Hours in Grosseto for May

The chart illustrates the variation in daylight duration in Grosseto throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 24m10h 31m11h 57m13h 24m14h 39m15h 16m14h 56m13h 50m12h 26m10h 59m9h 43m9h 3m
Data source: Grosseto daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Grosseto

In Grosseto, Italy, the month of May presents a gentle breeze, with an average wind speed of 3.4 m/s (8 mph), reflecting a slight dip from the spring months that precede it. As the year progresses, we observe a trend of diminishing winds during the warmer months, with May's wind speed being higher only than June's calm at 2.4 m/s (5 mph). This gradual decline reaches its peak in the heat of summer, before picking up again in the fall, notably in October and November when speeds resume to healthier averages of 4.1 m/s (9 mph) and 4.3 m/s (10 mph), respectively. The shifting winds weave a subtle narrative of the climate, hinting at the refreshing experience awaiting those who visit Grosseto in early summer.

Average May Wind Speed in Grosseto

The chart displays monthly wind speed patterns in Grosseto, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.63.83.33.63.4 m/s2.43.52.82.94.14.33.6
Data source: Grosseto May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Grosseto Compares to Other Months

The weather in Grosseto 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 Grosseto and find detailed weather information for every month.

In comparing the weather between May and January, we see striking differences in temperature and humidity. May boasts a minimum temperature of 9°C (48°F) and averages around 18°C (65°F), reaching a maximum of 29°C (85°F), making it significantly warmer than January, which has a minimum of 0°C (31°F) and an average of only 9°C (49°F). Although both months experience precipitation, January has slightly less at 51 mm (2.0 in) over approximately 6 days, compared to May’s 57 mm (2.2 in) over 10 days. Additionally, January has higher humidity at 84%, compared to May's 69%, which can make the cooler temperatures feel more intense. For more detailed information on January weather, visit Grosseto weather in January.

In comparing the weather of May and February, it's evident that May experiences much warmer temperatures, with averages around 18°C (65°F) and peak highs of 29°C (85°F), while February has a cooler average of 11°C (51°F) and maximums reaching only 18°C (66°F). Precipitation levels are similar in both months, with May receiving 57 mm (2.2 in) over approximately 10 days and February closely following with 56 mm (2.2 in) across 8 days; however, February has a slightly higher humidity level at 76% compared to May's 69%. For more detailed insights into February weather, you can explore Grosseto weather in February.

In comparing the weather between March and May, we see a significant rise in temperatures as spring progresses into early summer. March experiences a minimum temperature of -1°C (30°F) and an average of 12°C (53°F), while May boasts a much warmer minimum of 9°C (48°F) and an average temperature of 18°C (65°F). The maximum temperatures in March reach 22°C (72°F), compared to May's higher maximum of 29°C (85°F). Both months have similar precipitation levels, with March receiving 52 mm (2.0 in) over 7 days and May slightly higher with 57 mm (2.2 in) over 10 days. Humidity remains relatively consistent, at 68% in March and 69% in May. For more details about the weather in March, you can check Grosseto weather in March.

In comparing the weather between April and May, May shows a noticeable increase in temperature, with a minimum of 9°C (48°F) compared to April's minimum of 5°C (41°F). The average temperatures also rise from 14°C (58°F) in April to 18°C (65°F) in May, peaking at a maximum of 29°C (85°F) in May versus April's 24°C (75°F). Both months experience similar levels of precipitation, with May recording 57 mm (2.2 in) over 10 days and April at 56 mm (2.2 in) over 7 days. Humidity levels are slightly higher in April at 70%, compared to 69% in May. For more detailed information, check out Grosseto weather in April.

May and June show a significant transition in weather patterns. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), with an average of 18°C (65°F), accompanied by 57 mm (2.2 in) of precipitation over 10 days and a humidity level of 69%. In contrast, June experiences warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 33°C (92°F), averaging 23°C (73°F). Additionally, June sees much lower precipitation at 17 mm (0.7 in) over just 3 days, and a decrease in humidity to 62%. For more details, you can check out the link: Grosseto weather in June.

May and July present notably different weather patterns. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), with an average of 18°C (65°F). This month also sees about 57 mm (2.2 in) of precipitation over approximately 10 days, accompanied by higher humidity levels at 69%. In contrast, July experiences warmer weather, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 33°C (92°F), and an average temperature of 25°C (78°F). Precipitation drops significantly to just 22 mm (0.9 in) over approximately 3 days, and humidity is lower at 57%. Overall, July offers a drier and warmer experience compared to the cooler and wetter conditions of May. For more details, you can check Grosseto weather in July.

May and August present striking differences in weather patterns. In May, temperatures vary from a cool 9°C at night to a pleasant average of 18°C during the day, peaking at 29°C. This month also experiences moderate rainfall, with 57 mm expected over about 10 days, adding to the humidity level of 69%. In contrast, August enjoys significantly warmer temperatures, with a minimum of 18°C and an average of 26°C, soaring up to a sizzling 34°C at its hottest. Precipitation is minimal, totaling only 13 mm over roughly 3 days, and humidity drops to a comfortable 55%. For more details on summer weather, you can check out Grosseto weather in August.

May and September present a clear contrast in weather patterns. In May, temperatures range from a cool 9°C (48°F) at night to a warm 29°C (85°F) during the day, with an average of 18°C (65°F). The month sees about 57 mm (2.2 in) of rainfall over approximately 10 days, coupled with a humidity level of 69%. In contrast, September tends to be warmer, with minimum temperatures of 13°C (56°F) and maximums reaching 31°C (88°F), averaging around 23°C (73°F). Rainfall increases slightly to 66 mm (2.6 in) over just 8 days, and humidity dips slightly to 66%. For a closer look at September conditions, you can explore this link: Grosseto weather in September.

May and October present distinct yet mild weather patterns. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), averaging around 18°C (65°F). The month sees moderate rainfall with 57 mm (2.2 in) spread over 10 days and a humidity level of 69%. Conversely, October experiences slightly warmer nights with a minimum of 11°C (53°F) and a maximum of 27°C (80°F), maintaining the same average of 18°C (65°F). However, it is generally wetter, recording 88 mm (3.5 in) of precipitation over 9 days, accompanied by increased humidity at 79%. For a more detailed overview of the weather specifics, check out Grosseto weather in October.

May and November present distinct contrasts in weather conditions. In May, temperatures range from a minimum of 9°C (48°F) to a pleasant average of 18°C (65°F), peaking at a maximum of 29°C (85°F), accompanied by moderate precipitation of 57 mm (2.2 in) over about 10 days, and a humidity level of 69%. In contrast, November sees cooler temperatures, with a minimum of 5°C (41°F), an average of 14°C (58°F), and a maximum of 21°C (70°F). This month is much wetter, experiencing significant rainfall of 160 mm (6.3 in) spread across 15 days, while humidity rises to 84%. For more details on the November climate, check out Grosseto weather in November.

In May, the weather is generally warmer and more pleasant, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F) and an average of 18°C (65°F). Meanwhile, December experiences cooler temperatures, with a minimum of 4°C (39°F), an average of 11°C (52°F), and a maximum of 18°C (64°F). Precipitation also differs; May sees 57 mm (2.2 in) over about 10 days, while December records higher rainfall at 103 mm (4.1 in) across 11 days. Additionally, December has a higher humidity level at 83% compared to May's 69%, making the latter feel more comfortable for outdoor activities. For more detailed information, check out Grosseto weather in December.

Compare Grosseto's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Grosseto

In May, Grosseto experiences a delightful transition into warmer weather, characterized by pleasant daytime temperatures and the emergence of lush greenery. This month generally features a milder climate compared to the chill of early spring, with average highs reaching comfortable levels, allowing for enjoyable outdoor activities. While there is a moderate chance of rain, with precipitation spread across several days, the overall humidity remains relatively high, providing a refreshing ambiance. As summer approaches, May offers the perfect blend of warmth and vitality, making it a beautiful time to explore the region. For more insights into the weather patterns throughout the year, check out Grosseto Climate.