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May Weather in Castellar del Riu, Spain

Last updated: August 27, 2025

In May, the average temperature in Castellar del Riu, Spain hovers around 16°C (60°F). Expect a range from a brisk -1°C (31°F) to a warm 31°C (88°F). With an average humidity of 66%, you're likely to feel the moisture in the air. Be prepared for some rainfall, as the area receives around 113 mm (4.5 in) of precipitation over approximately 13 days.

May Temperature in Castellar del Riu

In May in Castellar del Riu, the weather is quite variable, making it an interesting time to visit with mild temperatures suitable for outdoor activities.

May Weather in Castellar del Riu: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Castellar del Riu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castellar del Riu, May typically has an average temperature of 16°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec394448526067737264574641
Data source: Temperature data for Castellar del Riu 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 Castellar del Riu

In Castellar del Riu in May, the precipitation amount is 113 mm (4.5 in) accumulated over 13 days.

May Precipitation Trends in Castellar del Riu

The chart displays monthly precipitation patterns in Castellar del Riu, 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 Castellar del Riu, May typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec4660771141131075883861217731
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Castellar del Riu

In Castellar del Riu in May humidity is 66%. With an average temperature of 16°C (60°F), this humidity feels like a comfortable embrace, making traveling enjoyable as long as you stay hydrated and take occasional breaks in shaded areas.

May Average Humidity in Castellar del Riu

This chart illustrates the average monthly humidity levels in Castellar del Riu, 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 Castellar del Riu is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%74%71%69%66%65%64%64%68%77%79%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Castellar del Riu

In Castellar del Riu 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 Castellar del Riu.

Maximum UV Index Levels in Castellar del Riu for May

The chart shows the monthly maximum UV Index (UVI) for Castellar del Riu 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 Castellar del Riu typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098632
Data source: Castellar del Riu 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 Castellar del Riu Compares to Other Months

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

This table compares monthly weather conditions in Castellar del Riu, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)46 mm (1.8 inches)79%moderate
February Weather7°C (45°F)60 mm (2.4 inches)74%moderate
March Weather9°C (48°F)77 mm (3.0 inches)71%high
April Weather11°C (52°F)114 mm (4.5 inches)69%very high
May Weather16°C (60°F)113 mm (4.5 inches)66%very high
June Weather19°C (67°F)107 mm (4.2 inches)65%very high
July Weather23°C (73°F)58 mm (2.3 inches)64%very high
August Weather22°C (73°F)83 mm (3.3 inches)64%very high
September Weather18°C (65°F)86 mm (3.4 inches)68%very high
October Weather14°C (57°F)121 mm (4.8 inches)77%high
November Weather8°C (47°F)77 mm (3.0 inches)79%moderate
December Weather5°C (42°F)31 mm (1.2 inches)79%low

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