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May Weather in Aci Castello, Italy

Last updated: August 23, 2025

In May, the average temperature in Aci Castello, Italy hovers around 19°C (66°F), with a comfortable range where minimums dip to 13°C (55°F) and maximums peak at 25°C (78°F). Expect a slight chance of rain, with precipitation typically amounting to 12 mm (0.5 in) over the course of just 2 days. You'll find the air is reasonably humid, with an average humidity level of 77%, making for a pleasantly warm atmosphere.

May Temperature in Aci Castello

In May in Aci Castello, the average temperature is 19°C (66°F). Maximum can reach 25°C (78°F) and minimum can be as low as 13°C (55°F). This moderate climate makes it a perfect time for sightseeing and outdoor activities.

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

The chart illustrates May temperature patterns in Aci Castello, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aci Castello, May typically has an average temperature of 19°C (66°F), with highs reaching up to 25°C (78°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec545556606674798177696457
Data source: Temperature data for Aci 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 Aci Castello

In Aci Castello in May, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

May Precipitation Trends in Aci Castello

The chart displays monthly precipitation patterns in Aci 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 Aci Castello, May typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec466061261218863514613135
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Aci Castello

In Aci Castello in May, humidity is 77%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and sticky, which can be quite uncomfortable for traveling.

May Average Humidity in Aci Castello

This chart illustrates the average monthly humidity levels in Aci 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 Aci Castello is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%76%77%76%72%70%73%73%75%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Aci Castello

In Aci Castello 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 Aci Castello.

Maximum UV Index Levels in Aci Castello for May

The chart shows the monthly maximum UV Index (UVI) for Aci 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 Aci Castello typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108743
Data source: Aci 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 Aci Castello Compares to Other Months

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

This table compares monthly weather conditions in Aci Castello, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)46 mm (1.8 inches)75%moderate
February Weather13°C (56°F)60 mm (2.4 inches)71%moderate
March Weather13°C (56°F)61 mm (2.4 inches)71%high
April Weather15°C (60°F)26 mm (1.0 inches)76%very high
May Weather19°C (66°F)12 mm (0.5 inches)77%very high
June Weather23°C (74°F)18 mm (0.7 inches)76%very high
July Weather26°C (80°F)8 mm (0.3 inches)72%very high
August Weather27°C (81°F)6 mm (0.2 inches)70%very high
September Weather25°C (77°F)35 mm (1.4 inches)73%very high
October Weather21°C (70°F)146 mm (5.8 inches)73%high
November Weather18°C (64°F)131 mm (5.1 inches)75%moderate
December Weather14°C (58°F)35 mm (1.4 inches)75%moderate

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