Climate almanac
El Cajon
California, United States · 32.79°, -116.96°
What is the weather like in El Cajon in December?
In December, El Cajon is typically 66°F (19°C) during the day and 49°F (10°C) at night. The month brings about 2.0 in (51 mm) of precipitation in total.
- Average high66°F (19°C)
- Average low49°F (10°C)
- Precipitation2.0 in (51 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)