Climate almanac
San Diego
Cesar Department, Colombia · 10.33°, -73.18°
What is the weather like in San Diego in December?
In December, San Diego is typically 85°F (29°C) during the day and 70°F (21°C) at night. The month brings about 2.8 in (71 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low70°F (21°C)
- Precipitation2.8 in (71 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)