Average annual temperature is 27.6 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 18.3 °C
Number of sunny days: 125 days
Number of rainy days: 240 days
Look at detailed online map of San Francisco
* Weather data for San Francisco El Salvador is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.0 | 37.1 | 39.2 | 38.8 | 40.4 | 34.7 | 37.6 | 36.2 | 34.8 | 33.4 | 35.1 | 36.4 |
| Average daytime temperature (°C) | 34.5 | 35.8 | 35.3 | 35.8 | 35.5 | 32.1 | 34.2 | 33.3 | 33.1 | 30.9 | 31.7 | 34.5 |
| Average temperature (°C) | 27.4 | 28.2 | 27.8 | 28.7 | 29.0 | 26.8 | 28.1 | 27.6 | 27.4 | 25.7 | 26.4 | 27.8 |
| Average night temperature (°C) | 21.7 | 21.9 | 22.5 | 23.5 | 24.1 | 23.1 | 23.9 | 23.7 | 23.4 | 22.5 | 22.6 | 22.5 |
| Absolute minimum temperature (°C) | 18.3 | 20.1 | 21.3 | 22.4 | 22.3 | 21.9 | 22.5 | 21.9 | 22.3 | 21.1 | 20.8 | 18.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.9 | 11.2 | 11.4 | 11.0 | 9.6 | 10.8 | 10.4 | 10.8 | 9.1 | 10.1 | 10.5 |
| Precipitation (mm) | 2 | 0 | 47 | 35 | 99 | 198 | 158 | 205 | 157 | 316 | 136 | 12 |
| Sunny days | 22 | 28 | 18 | 13 | 6 | 1 | 3 | 4 | 2 | 0 | 8 | 20 |
| Rainy days | 9 | 0 | 13 | 17 | 25 | 29 | 28 | 27 | 28 | 31 | 22 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Francisco is at