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August Weather in Aliso Viejo, United States

Last updated: June 24, 2025

In Aliso Viejo, United States, the average temperature in August reaches a pleasant 22°C (71°F), with comfortable lows of 16°C (62°F) and highs soaring to 30°C (86°F). Expect minimal precipitation of just 3 mm (0.1 in) over 0 days, allowing for plenty of sunshine. The average humidity sits at a moderate 69%, making it a delightful time to enjoy the outdoors!

August Temperature in Aliso Viejo

In August in Aliso Viejo, the average temperature is 22°C (71°F), with maximums reaching 30°C (86°F) and minimums dropping to 16°C (62°F). This pleasant climate makes it an ideal time for travelers to explore the outdoors and enjoy various activities.

August Weather in Aliso Viejo: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Aliso Viejo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aliso Viejo, August typically has an average temperature of 22°C (71°F), with highs reaching up to 30°C (86°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec575758616265707170686358
Data source: Temperature data for Aliso Viejo 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 Aliso Viejo

In Aliso Viejo in August, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.

August Precipitation Trends in Aliso Viejo

The chart displays monthly precipitation patterns in Aliso Viejo, 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 Aliso Viejo, August typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec6055542514333392269
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Aliso Viejo

In Aliso Viejo in August humidity is 69%. With an average temperature of 22°C (71°F), this humidity feels like walking through a warm embrace, making travel slightly uncomfortable yet refreshing, as the air clings to your skin and adds a layer of warmth to your exploration.

August Average Humidity in Aliso Viejo

This chart illustrates the average monthly humidity levels in Aliso Viejo, 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 Aliso Viejo is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%79%75%71%70%72%73%69%68%67%68%71%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Aliso Viejo

In Aliso Viejo in August, 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 Aliso Viejo.

Maximum UV Index Levels in Aliso Viejo for August

The chart shows the monthly maximum UV Index (UVI) for Aliso Viejo 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 Aliso Viejo typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111010754
Data source: Aliso Viejo 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 Aliso Viejo Compares to Other Months

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

This table compares monthly weather conditions in Aliso Viejo, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)60 mm (2.3 inches)74%moderate
February Weather14°C (57°F)55 mm (2.2 inches)79%high
March Weather14°C (58°F)54 mm (2.1 inches)75%very high
April Weather16°C (61°F)25 mm (1.0 inches)70%very high
May Weather16°C (62°F)14 mm (0.5 inches)70%extreme
June Weather18°C (65°F)3 mm (0.1 inches)72%extreme
July Weather21°C (70°F)3 mm (0.1 inches)73%extreme
August Weather22°C (71°F)3 mm (0.1 inches)69%very high
September Weather21°C (70°F)3 mm (0.1 inches)68%very high
October Weather20°C (68°F)9 mm (0.4 inches)67%high
November Weather17°C (63°F)22 mm (0.8 inches)68%moderate
December Weather14°C (58°F)69 mm (2.7 inches)71%moderate

Compare Aliso Viejo's Climate with Cities Worldwide