Climate almanac
San Diego
Cesar Department, Colombia · 10.33°, -73.18°
What is the weather like in San Diego in September?
In September, San Diego is typically 86°F (30°C) during the day and 73°F (23°C) at night. The month brings about 19 in (494 mm) of precipitation in total.
- Average high86°F (30°C)
- Average low73°F (23°C)
- Precipitation19 in (494 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)