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May Weather in Guidonia Montecelio, Italy

Last updated: August 23, 2025

In May, the average temperature in Guidonia Montecelio, Italy is a pleasant 17°C (63°F). Visitors can expect a range between a cool 4°C (39°F) and a warm 33°C (91°F). Precipitation averages 98 mm (3.8 in) over approximately 13 days, contributing to an average humidity level of 70%.

May Temperature in Guidonia Montecelio

In May in Guidonia Montecelio, the average temperature is 17°C (63°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 4°C (39°F). It's important to pack for a range of temperatures to ensure a comfortable travel experience.

May Weather in Guidonia Montecelio: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Guidonia Montecelio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guidonia Montecelio, May typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec424649556372777869605345
Data source: Temperature data for Guidonia Montecelio 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 Guidonia Montecelio

In Guidonia Montecelio in May, the precipitation amount is 98 mm (3.8 in) spread over 13 days.

May Precipitation Trends in Guidonia Montecelio

The chart displays monthly precipitation patterns in Guidonia Montecelio, 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 Guidonia Montecelio, May typically receives around 98 mm (3.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec668493809845252910896170153
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Guidonia Montecelio

In Guidonia Montecelio in May humidity is 70%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making travel both refreshing and slightly sticky, as you navigate the air thick with moisture.

May Average Humidity in Guidonia Montecelio

This chart illustrates the average monthly humidity levels in Guidonia Montecelio, 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 Guidonia Montecelio is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Guidonia Montecelio

In Guidonia Montecelio 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 Guidonia Montecelio.

Maximum UV Index Levels in Guidonia Montecelio for May

The chart shows the monthly maximum UV Index (UVI) for Guidonia Montecelio 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 Guidonia Montecelio typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34679101098642
Data source: Guidonia Montecelio 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 Guidonia Montecelio Compares to Other Months

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

This table compares monthly weather conditions in Guidonia Montecelio, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)66 mm (2.6 inches)84%moderate
February Weather8°C (47°F)84 mm (3.3 inches)76%moderate
March Weather10°C (50°F)93 mm (3.7 inches)69%high
April Weather13°C (55°F)80 mm (3.1 inches)70%high
May Weather17°C (63°F)98 mm (3.8 inches)70%very high
June Weather22°C (72°F)45 mm (1.8 inches)61%very high
July Weather25°C (78°F)25 mm (1.0 inches)57%very high
August Weather26°C (79°F)29 mm (1.1 inches)53%very high
September Weather21°C (69°F)108 mm (4.2 inches)65%very high
October Weather16°C (61°F)96 mm (3.8 inches)75%high
November Weather12°C (53°F)170 mm (6.7 inches)81%moderate
December Weather7°C (46°F)153 mm (6.0 inches)84%low

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