May Weather in Castalla, Spain

Last updated: August 27, 2025

In Castalla, Spain, the average temperature in May hovers around 19°C (66°F). However, temperatures can vary significantly, with a minimum of 6°C (42°F) and a maximum of 33°C (92°F). Expect about 33 mm (1.3 in) of precipitation over approximately 5 days, and enjoy a comfortable average humidity level of 53%.

May Temperature in Castalla

In May, in Castalla, the average temperature is 19°C (66°F). Maximums can reach 33°C (92°F), and minimums can drop as low as 6°C (42°F). This range of temperatures makes Castalla an ideal destination for travelers seeking a pleasant climate and diverse outdoor activities.

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

The chart illustrates May temperature patterns in Castalla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castalla, May typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec485254576673797972645551
Data source: Temperature data for Castalla 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 Castalla

In Castalla in May, the precipitation amount is 33 mm (1.3 in) over the course of 5 days.

May Precipitation Trends in Castalla

The chart displays monthly precipitation patterns in Castalla, 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 Castalla, May typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec44155264334152966414219
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Castalla

In Castalla in May, humidity is 53%. With an average temperature of 19°C (66°F), this humidity feels like a refreshing breeze that enhances the pleasant warmth, making it ideal for exploring the sights and enjoying outdoor activities without feeling overly sticky or uncomfortable.

May Average Humidity in Castalla

This chart illustrates the average monthly humidity levels in Castalla, 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 Castalla is approximately 53%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%75%64%58%53%49%51%51%58%71%76%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Castalla

In Castalla 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 Castalla.

Maximum UV Index Levels in Castalla for May

The chart shows the monthly maximum UV Index (UVI) for Castalla 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 Castalla typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568101211109743
Data source: Castalla 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 Castalla Compares to Other Months

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

This table compares monthly weather conditions in Castalla, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)43 mm (1.7 inches)78%moderate
February Weather11°C (52°F)15 mm (0.6 inches)75%moderate
March Weather12°C (54°F)52 mm (2.1 inches)64%high
April Weather14°C (57°F)64 mm (2.5 inches)58%very high
May Weather19°C (66°F)33 mm (1.3 inches)53%very high
June Weather23°C (73°F)41 mm (1.6 inches)49%extreme
July Weather26°C (80°F)5 mm (0.2 inches)51%extreme
August Weather26°C (80°F)29 mm (1.1 inches)51%very high
September Weather22°C (72°F)66 mm (2.6 inches)58%very high
October Weather18°C (64°F)41 mm (1.6 inches)71%high
November Weather13°C (55°F)42 mm (1.7 inches)76%moderate
December Weather10°C (51°F)19 mm (0.7 inches)80%moderate

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