Average annual temperature is 11.1 °C
Absolute maximum temperature: 20.7 °C
Absolute minimum temperature: 1.8 °C
Number of sunny days: 92 days
Number of rainy days: 273 days
Look at detailed online map of San Martin
* Weather data for San Martin 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) | 15.3 | 15.5 | 15.9 | 16.1 | 17.1 | 17.4 | 19.6 | 19.9 | 20.7 | 19.6 | 18.2 | 17.4 |
| Average daytime temperature (°C) | 14.2 | 14.4 | 14.4 | 14.6 | 15.5 | 15.8 | 17.1 | 17.7 | 18.1 | 17.1 | 16.3 | 15.7 |
| Average temperature (°C) | 10.1 | 10.6 | 10.4 | 10.8 | 11.1 | 10.8 | 10.9 | 11.3 | 11.9 | 11.8 | 11.4 | 11.6 |
| Average night temperature (°C) | 7.1 | 8.0 | 7.1 | 7.7 | 7.1 | 6.2 | 5.7 | 5.9 | 6.7 | 7.6 | 7.2 | 8.8 |
| Absolute minimum temperature (°C) | 2.2 | 5.9 | 1.8 | 5.6 | 5.2 | 3.9 | 3.6 | 4.0 | 5.1 | 5.0 | 4.5 | 7.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 12.0 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.5 | 9.4 | 8.7 | 9.6 | 10.8 | 10.9 | 10.9 | 11.1 | 11.4 | 10.6 | 10.8 | 10.0 |
| Precipitation (mm) | 265 | 210 | 277 | 219 | 80 | 4 | 2 | 19 | 26 | 125 | 188 | 351 |
| Sunny days | 0 | 0 | 0 | 0 | 5 | 25 | 25 | 23 | 10 | 3 | 1 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 26 | 5 | 6 | 8 | 20 | 28 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Martin is at