Average annual temperature is 24.8 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: 16.6 °C
Number of sunny days: 66 days
Number of rainy days: 299 days
Look at detailed online map of Región de San Martín
* Weather data for Región de San Martín 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) | 32.6 | 32.7 | 31.5 | 31.0 | 30.9 | 30.4 | 32.4 | 34.2 | 36.3 | 37.5 | 33.1 | 32.2 |
| Average daytime temperature (°C) | 29.0 | 29.2 | 28.8 | 29.0 | 29.1 | 28.6 | 30.0 | 31.7 | 33.5 | 32.9 | 30.2 | 29.5 |
| Average temperature (°C) | 24.0 | 24.0 | 24.0 | 24.2 | 24.4 | 23.7 | 24.5 | 25.5 | 26.6 | 26.5 | 25.2 | 24.9 |
| Average night temperature (°C) | 20.6 | 20.9 | 21.1 | 21.0 | 21.0 | 19.7 | 20.2 | 20.6 | 21.5 | 22.3 | 22.0 | 21.9 |
| Absolute minimum temperature (°C) | 19.1 | 19.9 | 20.1 | 20.2 | 19.3 | 16.6 | 18.3 | 19.0 | 20.1 | 20.6 | 21.1 | 21.2 |
| 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) | 8.9 | 8.9 | 7.4 | 8.6 | 9.6 | 10.1 | 10.5 | 10.3 | 10.8 | 10.1 | 9.5 | 9.2 |
| Precipitation (mm) | 278 | 260 | 425 | 400 | 220 | 80 | 50 | 75 | 94 | 181 | 321 | 398 |
| Sunny days | 2 | 1 | 0 | 0 | 3 | 13 | 8 | 20 | 11 | 7 | 1 | 0 |
| Rainy days | 29 | 27 | 31 | 30 | 28 | 17 | 23 | 11 | 19 | 24 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Región de San Martín is at