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May Weather in San Giovanni, Italy

Last updated: August 23, 2025

In May, the average temperature in San Giovanni, Italy hovers around 5°C (41°F), though it can dip as low as -9°C (17°F) or rise to a pleasant 21°C (70°F). Visitors should be prepared for 145 mm (5.7 in) of precipitation over approximately 21 days, and expect a high level of moisture in the air with an average humidity of 78%.

May Temperature in San Giovanni

In May in San Giovanni, the average temperature is 5°C (41°F). The maximum can reach 21°C (70°F) and the minimum can be as low as -9°C (17°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in San Giovanni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Giovanni, May typically has an average temperature of 5°C (41°F), with highs reaching up to 21°C (70°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec182327334051535446382919
Data source: Temperature data for San Giovanni 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 Giovanni

In San Giovanni in May, the total precipitation amount is 145 mm (5.7 in) spread over 21 days.

May Precipitation Trends in San Giovanni

The chart displays monthly precipitation patterns in San Giovanni, 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 San Giovanni, May typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec82678482145145171202124115114124
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Giovanni

In San Giovanni in May, humidity is 78%. With an average temperature of 5°C (41°F), this humidity feels like walking through a chill that clings to your skin, making every breath feel damp and cold, which can be uncomfortable for traveling.

May Average Humidity in San Giovanni

This chart illustrates the average monthly humidity levels in San Giovanni, 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 San Giovanni is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Giovanni

In San Giovanni in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Giovanni.

Maximum UV Index Levels in San Giovanni for May

The chart shows the monthly maximum UV Index (UVI) for San Giovanni 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 San Giovanni typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: San Giovanni 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.

How May Weather in San Giovanni Compares to Other Months

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

This table compares monthly weather conditions in San Giovanni, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)82 mm (3.2 inches)93%low
February Weather-5°C (23°F)67 mm (2.6 inches)89%moderate
March Weather-3°C (27°F)84 mm (3.3 inches)86%high
April Weather1°C (33°F)82 mm (3.2 inches)83%very high
May Weather5°C (41°F)145 mm (5.7 inches)78%very high
June Weather11°C (52°F)145 mm (5.7 inches)79%very high
July Weather12°C (53°F)171 mm (6.7 inches)82%very high
August Weather12°C (54°F)202 mm (7.9 inches)80%very high
September Weather8°C (46°F)124 mm (4.9 inches)83%high
October Weather3°C (38°F)115 mm (4.5 inches)90%moderate
November Weather-2°C (29°F)114 mm (4.5 inches)89%moderate
December Weather-7°C (20°F)124 mm (4.9 inches)90%low

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