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May Weather in San Clemente, Mexico

Last updated: August 27, 2025

In May, the average temperature in San Clemente, Mexico is a comfortable 23°C (73°F). Expect a range between a cool 8°C (48°F) and a warm 35°C (95°F). Rainfall is moderate, with approximately 29 mm (1.1 in) of precipitation spread over 6 days. Overall, the average humidity rests at a pleasant 67%. Enjoy the diverse weather this month!

May Temperature in San Clemente

In May in San Clemente, the average temperature is 23°C (73°F). Maximums can reach 35°C (95°F), while minimums can drop as low as 8°C (48°F). Be sure to pack layers and stay hydrated while you enjoy your travels in this diverse climate!

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 23°C (73°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec636569717372707070706764
Data source: Temperature data for San Clemente 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 San Clemente

In San Clemente in May, the precipitation amount is 29 mm (1.1 in) over the course of 6 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 29 mm (1.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec132632291611782212201012416
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Clemente

In San Clemente in May humidity is 67%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket that makes the air feel thick and slightly sticky, which can be challenging for travelers who prefer cooler, drier conditions.

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 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%65%59%60%67%80%81%83%83%80%77%76%
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 is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Clemente, you can check here.

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 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111414141413131412108
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 Weather17°C (64°F)13 mm (0.5 inches)70%very high
February Weather18°C (65°F)26 mm (1.0 inches)65%extreme
March Weather20°C (69°F)3 mm (0.1 inches)59%extreme
April Weather22°C (71°F)2 mm (0.1 inches)60%extreme
May Weather23°C (73°F)29 mm (1.1 inches)67%extreme
June Weather22°C (73°F)161 mm (6.3 inches)80%extreme
July Weather21°C (71°F)178 mm (7.0 inches)81%extreme
August Weather21°C (71°F)221 mm (8.7 inches)83%extreme
September Weather21°C (70°F)220 mm (8.7 inches)83%extreme
October Weather21°C (70°F)101 mm (4.0 inches)80%extreme
November Weather20°C (68°F)24 mm (1.0 inches)77%very high
December Weather18°C (64°F)16 mm (0.6 inches)76%very high

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