nomadseason

May Weather in San Clemente, Spain

Last updated: August 27, 2025

In San Clemente, Spain, the average temperature in May hovers around 18°C (65°F), with a comfortable level of humidity at 56%. Temperatures can range from a chilly 2°C (35°F) to a warm 35°C (95°F). Expect some precipitation too, with an average of 35 mm (1.4 in) spread over about 5 days, making it a month of nice contrasts.

May Temperature in San Clemente

In May in San Clemente, the average temperature is 18°C (65°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 2°C (35°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

May Weather in San Clemente: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Clemente, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Clemente, May typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (95°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec414750546573807970604944
Data source: Temperature data for San Clemente generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in San Clemente

In San Clemente in May, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.

May Precipitation Trends in San Clemente

The chart displays monthly precipitation patterns in San Clemente, 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 San Clemente, May typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec303054633522131730466445
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in San Clemente

In San Clemente in May humidity is 56%. With an average temperature of 18°C (65°F), this humidity feels like a pleasant embrace, making traveling enjoyable as long as you stay hydrated and take breaks in the shade.

May Average Humidity in San Clemente

This chart illustrates the average monthly humidity levels in San Clemente, 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 San Clemente is approximately 56%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%78%66%60%56%44%44%42%53%70%83%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Clemente

In San Clemente 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 San Clemente.

Maximum UV Index Levels in San Clemente for May

The chart shows the monthly maximum UV Index (UVI) for San Clemente 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 San Clemente typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101211109743
Data source: San Clemente 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 San Clemente Compares to Other Months

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

This table compares monthly weather conditions in San Clemente, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)30 mm (1.2 inches)85%moderate
February Weather8°C (47°F)30 mm (1.2 inches)78%moderate
March Weather10°C (50°F)53 mm (2.1 inches)66%high
April Weather12°C (55°F)63 mm (2.5 inches)60%very high
May Weather18°C (65°F)35 mm (1.4 inches)56%very high
June Weather23°C (74°F)22 mm (0.9 inches)44%extreme
July Weather27°C (80°F)13 mm (0.5 inches)44%extreme
August Weather26°C (79°F)17 mm (0.7 inches)42%very high
September Weather21°C (70°F)30 mm (1.2 inches)53%very high
October Weather16°C (60°F)46 mm (1.8 inches)70%high
November Weather10°C (49°F)64 mm (2.5 inches)83%moderate
December Weather7°C (44°F)45 mm (1.8 inches)86%moderate

Compare San Clemente's Climate with Cities Worldwide