Climate almanac
San Clemente
California, United States · 33.43°, -117.61°
What is the weather like in San Clemente in December?
In December, San Clemente is typically 66°F (19°C) during the day and 49°F (9°C) at night. The month brings about 2.5 in (64 mm) of precipitation in total.
- Average high66°F (19°C)
- Average low49°F (9°C)
- Precipitation2.5 in (64 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)