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August Weather in San Clemente, Mexico

Last updated: August 27, 2025

In August, the average temperature in San Clemente, Mexico averages a pleasant 21°C (71°F). However, temperatures can vary, with a minimum of 14°C (57°F) and a maximum reaching 31°C (89°F). Expect a relatively wet month, with a total precipitation of 221 mm (8.7 in) spread over 27 days and average humidity at a high 83%.

August Temperature in San Clemente

In August in San Clemente, the average temperature is 21°C (71°F). Maximums can reach 31°C (89°F), while minimums can drop as low as 14°C (57°F). This pleasant climate makes it an ideal time for travelers to explore the beauty of San Clemente.

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

The chart illustrates August 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, August typically has an average temperature of 21°C (71°F), with highs reaching up to 31°C (89°F) and lows dropping to around 14°C (57°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.

August Precipitation in San Clemente

In San Clemente in August, the precipitation amount is 221 mm (8.7 in) distributed over 27 days.

August Precipitation Trends in San Clemente

The chart displays monthly precipitation patterns in San Clemente, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In San Clemente, August typically receives around 221 mm (8.7 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec132632291611782212201012416
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in San Clemente

In San Clemente in August humidity is 83%. With an average temperature of 21°C (71°F), this humidity feels like walking through a warm mist, making travel both refreshing and slightly uncomfortable as the air clings to your skin and you find yourself needing to take frequent breaks to hydrate.

August Average Humidity in San Clemente

This chart illustrates the average monthly humidity levels in San Clemente, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in San Clemente is approximately 83%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in San Clemente

In San Clemente in August, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Clemente.

Maximum UV Index Levels in San Clemente for August

The chart shows the monthly maximum UV Index (UVI) for San Clemente in August, 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 August, the maximum UV index in San Clemente typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111414141413131412108
Data source: San Clemente August 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 August 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 August’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 August’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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