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May Weather in Etna, United States

Last updated: June 24, 2025

In Etna, United States, the average temperature in May hovers around 18°C (64°F), making it a pleasant time to visit. However, be prepared for a range, as temperatures can dip as low as -2°C (29°F) or soar to 32°C (90°F). During this month, expect approximately 132 mm (5.2 in) of rainfall over 15 days, contributing to an average humidity level of 81%. Pack accordingly to enjoy the charming weather!

May Temperature in Etna

In May in Etna, the average temperature is 18°C (64°F), with maximums reaching up to 32°C (90°F) and minimums dropping to as low as -2°C (29°F). This temperature range indicates that travelers should be prepared for both warm days and cooler nights when visiting.

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

The chart illustrates May temperature patterns in Etna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Etna, May typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (90°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec313442526472767369574236
Data source: Temperature data for Etna 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 Etna

In Etna in May, the precipitation amount is 132 mm (5.2 in), occurring over a span of 15 days.

May Precipitation Trends in Etna

The chart displays monthly precipitation patterns in Etna, 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 Etna, May typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec881151181251321551187893106101109
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Etna

In Etna in May, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

May Average Humidity in Etna

This chart illustrates the average monthly humidity levels in Etna, 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 Etna is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Etna

In Etna in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Etna.

Maximum UV Index Levels in Etna for May

The chart shows the monthly maximum UV Index (UVI) for Etna 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 Etna typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Etna 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 Etna Compares to Other Months

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

This table compares monthly weather conditions in Etna, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)88 mm (3.5 inches)88%moderate
February Weather1°C (35°F)115 mm (4.5 inches)88%moderate
March Weather6°C (43°F)118 mm (4.6 inches)87%high
April Weather11°C (52°F)125 mm (4.9 inches)85%very high
May Weather18°C (64°F)132 mm (5.2 inches)81%very high
June Weather22°C (72°F)155 mm (6.1 inches)82%very high
July Weather24°C (76°F)117 mm (4.6 inches)81%very high
August Weather23°C (74°F)78 mm (3.1 inches)73%very high
September Weather20°C (69°F)93 mm (3.7 inches)73%very high
October Weather14°C (58°F)106 mm (4.2 inches)78%high
November Weather5°C (42°F)101 mm (4.0 inches)89%moderate
December Weather2°C (36°F)109 mm (4.3 inches)87%moderate

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