San Juan Capistrano (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Juan Capistrano.
Climate overview of San Juan Capistrano
San Juan Capistrano, California, United States of America, experiences moderate temperature changes through the seasons. September is the warmest month with daytime highs of 29°C (84°F), while December is the coolest at 19°C (66°F).
With around 260 mm (10 in) of annual rainfall, San Juan Capistrano has a fairly dry climate. However, it has a distinct dry season from March to November. The wettest month is December, while June sees the least rain. Sunshine peaks in July, when the city sees around 12.3 hours of sunshine per day.
San Juan Capistrano Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Juan Capistrano - and find the best time to visit.
Monthly Temperature in San Juan Capistrano
In San Juan Capistrano, seasonal changes bring about a moderate variation in temperatures. Average daytime temperatures reach a comfortable 29°C (84°F) in September. In December, the coolest month of the year, temperatures drop to a pleasant 19°C (66°F).
At night, temperatures range from around 17°C (63°F) in September to 8°C (46°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Juan Capistrano
With annual rainfall averaging 260 mm (10 in), San Juan Capistrano maintains relatively low precipitation levels throughout the seasons. San Juan Capistrano can be quite wet during December, receiving approximately 74 mm (2.9 in) of precipitation over 8 rainy days.
In contrast, during the driest month (June), you will experience much drier conditions, with 0.4 mm (0.02 in) of precipitation spread across 0 rainy days. For more details, please visit our San Juan Capistrano Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in San Juan Capistrano
San Juan Capistrano can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 12.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 6.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit San Juan Capistrano
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, May, June, July, August, September, October and November
- Warmest weather: July, August and September
- Most sunshine: July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: A distinct dry season from March to November
Frequently asked questions about the climate in San Juan Capistrano
What is the best time to visit San Juan Capistrano?
January, February, March, April, May, June, July, August, September, October and November typically offer the most optimal weather in San Juan Capistrano. In contrast, December tends to have less optimal conditions. San Juan Capistrano has a distinct dry season from March to November.
What temperatures can I expect in San Juan Capistrano?
Daytime highs range from 19°C (66°F) in December to 29°C (84°F) in September. Nighttime lows range from 8°C (46°F) to 17°C (63°F).
How much rain does San Juan Capistrano get?
Annual rainfall is around 260 mm (10 in). December is the wettest month with 74 mm (2.9 in), while June is the driest with 0.4 mm (0.02 in).
How sunny is San Juan Capistrano?
San Juan Capistrano receives around 3,279 hours of sunshine per year. July is the sunniest month with 369 hours, while January is the cloudiest with just 198 hours. Overall, San Juan Capistrano enjoys abundant sunshine.
San Juan Capistrano 3-Day Forecast
San Juan Capistrano on the map
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