September weather in San Diego, United States
Averages from 150 days in September across 2020–2024.
Typical conditions
| Average high | 25.5°C |
|---|---|
| Average low | 18.1°C |
| Average mean | 21.4°C |
| Total precipitation | 71.5 mm |
| Rainy days | 24 |
| Average precipitation hours | 0.7 h |
| Average max wind speed | 19 km/h |
| Average sunshine | 10.5 h/day |
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