Climate almanac
San Juan Capistrano
California, United States · 33.50°, -117.66°
What is the weather like in San Juan Capistrano in December?
In December, San Juan Capistrano is typically 64°F (18°C) during the day and 53°F (12°C) at night. The month brings about 2.2 in (57 mm) of precipitation in total.
- Average high64°F (18°C)
- Average low53°F (12°C)
- Precipitation2.2 in (57 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)