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May Weather in Castello, Italy

Last updated: August 23, 2025

In May, the average temperature in Castello, Italy is a mild 17°C (63°F). Expect minimums dipping to 5°C (41°F), while maximums can soar up to 30°C (86°F). Don’t forget your umbrella, as 121 mm (4.8 in) of rain typically falls over 17 days. With an average humidity of 70%, be ready for that refreshing, yet humid charm!

May Temperature in Castello

In May in Castello, the average temperature is 17°C (63°F), with maximums reaching 30°C (86°F) and minimums dropping as low as 5°C (41°F). This pleasant temperature range makes Castello an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates May temperature patterns in Castello, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castello, May typically has an average temperature of 17°C (63°F), with highs reaching up to 30°C (86°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec404348556372757668595042
Data source: Temperature data for Castello 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 Castello

In Castello in May, the total precipitation amount is 121 mm (4.8 in) recorded over the course of 17 days.

May Precipitation Trends in Castello

The chart displays monthly precipitation patterns in Castello, 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 Castello, May typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec2653609612110110110411910213587
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Castello

In Castello 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 Castello

This chart illustrates the average monthly humidity levels in Castello, 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 Castello is approximately 70%, offering insight into how humid the weather typically is during this month.
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 Castello

In Castello in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Castello.

Maximum UV Index Levels in Castello for May

The chart shows the monthly maximum UV Index (UVI) for Castello 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 Castello typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Castello 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 Castello Compares to Other Months

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

This table compares monthly weather conditions in Castello, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)26 mm (1.0 inches)87%low
February Weather6°C (43°F)52 mm (2.1 inches)79%moderate
March Weather9°C (48°F)60 mm (2.3 inches)69%moderate
April Weather13°C (55°F)96 mm (3.8 inches)71%high
May Weather17°C (63°F)121 mm (4.8 inches)70%very high
June Weather22°C (73°F)101 mm (4.0 inches)65%very high
July Weather24°C (76°F)101 mm (4.0 inches)61%very high
August Weather25°C (76°F)104 mm (4.1 inches)54%very high
September Weather20°C (68°F)119 mm (4.7 inches)66%high
October Weather15°C (59°F)102 mm (4.0 inches)83%moderate
November Weather10°C (50°F)135 mm (5.3 inches)88%moderate
December Weather5°C (42°F)87 mm (3.4 inches)85%low

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