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May Weather in Illano, Spain

Last updated: August 27, 2025

In May, the average temperature in Illano, Spain hovers around 13°C (55°F). Expect a broad temperature range, with minimums dipping to 0°C (32°F) and maximums peaking at 27°C (81°F). Be prepared for 123 mm (4.9 in) of precipitation spread over 15 days, resulting in an average humidity of 84%. Stay cozy and dry!

May Temperature in Illano

In May in Illano, the average temperature is 13°C (55°F). Maximums can reach 27°C (81°F), and minimums can dip as low as 0°C (32°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Illano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Illano, May typically has an average temperature of 13°C (55°F), with highs reaching up to 27°C (81°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec414546495559636360544745
Data source: Temperature data for Illano 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 Illano

In Illano in May, the total precipitation amount is 123 mm (4.9 in) over a span of 15 days.

May Precipitation Trends in Illano

The chart displays monthly precipitation patterns in Illano, 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 Illano, May typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec109128126103123117626677117165202
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Illano

In Illano in May humidity is 84%. With average temperature 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and draining for traveling.

May Average Humidity in Illano

This chart illustrates the average monthly humidity levels in Illano, 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 Illano is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%83%83%84%84%86%78%77%82%86%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Illano

In Illano 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 Illano.

Maximum UV Index Levels in Illano for May

The chart shows the monthly maximum UV Index (UVI) for Illano 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 Illano typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689111098632
Data source: Illano 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 Illano Compares to Other Months

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

This table compares monthly weather conditions in Illano, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)109 mm (4.3 inches)87%low
February Weather7°C (45°F)128 mm (5.1 inches)85%moderate
March Weather8°C (46°F)126 mm (4.9 inches)83%high
April Weather10°C (50°F)103 mm (4.0 inches)83%very high
May Weather13°C (55°F)123 mm (4.9 inches)84%very high
June Weather15°C (59°F)117 mm (4.6 inches)84%extreme
July Weather17°C (63°F)62 mm (2.4 inches)86%very high
August Weather17°C (63°F)66 mm (2.6 inches)78%very high
September Weather16°C (60°F)77 mm (3.0 inches)77%very high
October Weather12°C (55°F)117 mm (4.6 inches)82%high
November Weather8°C (47°F)165 mm (6.5 inches)86%moderate
December Weather7°C (45°F)202 mm (8.0 inches)87%low

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