Climate almanac
El Cajon
California, United States · 32.79°, -116.96°
What is the weather like in El Cajon in January?
In January, El Cajon is typically 65°F (18°C) during the day and 48°F (9°C) at night. The month brings about 2.6 in (66 mm) of precipitation in total.
- Average high65°F (18°C)
- Average low48°F (9°C)
- Precipitation2.6 in (66 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)