Average annual temperature is 2.0 °C
Absolute maximum temperature: 12.1 °C
Absolute minimum temperature: -8.4 °C
Number of sunny days: 84 days
Number of rainy days: 262 days
Number of snow days: 19 days
Look at detailed online map of San Francisco
* Weather data for San Francisco Peru is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 8.7 | 8.0 | 9.4 | 9.1 | 8.4 | 9.2 | 11.5 | 12.1 | 9.7 | 9.8 | 9.4 | 10.2 |
| Average daytime temperature (°C) | 5.6 | 6.0 | 6.3 | 7.0 | 6.5 | 7.5 | 9.4 | 9.3 | 7.6 | 8.0 | 7.9 | 8.3 |
| Average temperature (°C) | 0.9 | 1.5 | 1.6 | 1.6 | 1.2 | 1.5 | 2.7 | 2.4 | 1.9 | 2.6 | 2.6 | 3.3 |
| Average night temperature (°C) | -2.5 | -1.4 | -1.8 | -2.8 | -3.4 | -3.0 | -2.5 | -2.9 | -2.5 | -1.6 | -0.8 | -0.3 |
| Absolute minimum temperature (°C) | -6.8 | -5.0 | -5.9 | -6.0 | -8.4 | -5.5 | -4.7 | -6.1 | -5.0 | -6.4 | -5.1 | -2.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 11.4 | 11.4 | 11.7 | 12.0 | 12.4 | 12.7 | 12.9 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.0 | 8.4 | 8.7 | 9.9 | 10.0 | 10.5 | 10.6 | 10.4 | 10.6 | 10.1 | 9.7 | 9.4 |
| Precipitation (mm) | 236 | 202 | 225 | 97 | 42 | 2 | 8 | 24 | 95 | 198 | 213 | 214 |
| Sunny days | 0 | 0 | 0 | 0 | 12 | 28 | 24 | 15 | 3 | 0 | 2 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 17 | 0 | 4 | 9 | 22 | 31 | 28 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 7 | 5 | 0 | 0 | 0 |
The largest precipitation sum in San Francisco is at