Last updated: June 24, 2025
In June, the average temperature in San Juan Capistrano, United States is a pleasant 18°C (65°F). Expect a minimum temperature of 14°C (57°F) and a maximum of 29°C (85°F). With a light precipitation amount of 3 mm (0.1 in) spread over 0 days, you can enjoy the outdoors with an average humidity of 72%.
In June in San Juan Capistrano, the average temperature is 18°C (65°F). Maximum temperatures can reach up to 29°C (85°F), while minimum temperatures can drop to as low as 14°C (57°F). This mild climate makes it a pleasant time for traveling and exploring the beautiful surroundings.
In San Juan Capistrano in June, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.
In San Juan Capistrano in June humidity is 72%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the air clings to your skin and the heat can be stifling, yet it's perfect for enjoying leisurely strolls under the shade.
In San Juan Capistrano in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 June’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 |