Last updated: June 24, 2025
In San Juan Capistrano, 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!
In August in San Juan Capistrano, 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.
In San Juan Capistrano in August, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.
In San Juan Capistrano 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.
In San Juan Capistrano 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 San Juan Capistrano.
UV Risk Categories
Weather in San Juan Capistrano varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in San Juan Capistrano, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 14°C (58°F) | 60 mm (2.3 inches) | 74% | moderate |
| February Weather | 14°C (57°F) | 55 mm (2.2 inches) | 79% | high |
| March Weather | 14°C (58°F) | 54 mm (2.1 inches) | 75% | very high |
| April Weather | 16°C (61°F) | 25 mm (1.0 inches) | 70% | very high |
| May Weather | 16°C (62°F) | 14 mm (0.5 inches) | 70% | extreme |
| June Weather | 18°C (65°F) | 3 mm (0.1 inches) | 72% | extreme |
| July Weather | 21°C (70°F) | 3 mm (0.1 inches) | 73% | extreme |
| August Weather | 22°C (71°F) | 3 mm (0.1 inches) | 69% | very high |
| September Weather | 21°C (70°F) | 3 mm (0.1 inches) | 68% | very high |
| October Weather | 20°C (68°F) | 9 mm (0.4 inches) | 67% | high |
| November Weather | 17°C (63°F) | 22 mm (0.8 inches) | 68% | moderate |
| December Weather | 14°C (58°F) | 69 mm (2.7 inches) | 71% | moderate |