Weather in San Francisco, California, United States
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | 7°C | 14°C | 98.2 mm | 55% | 33.3 km/h |
| February | 7°C | 15°C | 91.4 mm | 49% | 36.3 km/h |
| March | 8°C | 15°C | 99.2 mm | 54% | 40.1 km/h |
| April | 9°C | 17°C | 21.5 mm | 44% | 36.5 km/h |
| May | 10°C | 19°C | 11.1 mm | 36% | 38.2 km/h |
| June | 12°C | 22°C | 1.2 mm | 35% | 36.2 km/h |
| July | 14°C | 23°C | 1.2 mm | 36% | 31.5 km/h |
| August | 14°C | 24°C | 1.6 mm | 32% | 32.0 km/h |
| September | 15°C | 24°C | 7.0 mm | 36% | 30.3 km/h |
| October | 12°C | 22°C | 31.2 mm | 38% | 29.1 km/h |
| November | 9°C | 17°C | 60.5 mm | 50% | 29.7 km/h |
| December | 7°C | 14°C | 145.1 mm | 65% | 31.9 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 4.1% | |
| February | 6.8% | |
| March | 6.9% | |
| April | 18.2% | |
| May | 36.6% | |
| June | 52.7% | |
| July | 66.8% | |
| August | 77.6% | |
| September | 68.3% | |
| October | 47.3% | |
| November | 14.3% | |
| December | 2.5% |
About this location and data
- Urban-centre population
- 3,163,486
- Elevation
- 209 m
- Coordinates
- 37.48°N, 122.14°W
- Urban area
- 915 km²
Weather averages use 8 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculated