Average annual temperature is 21.0 °C
Absolute maximum temperature: 40.7 °C
Absolute minimum temperature: 1.8 °C
Number of sunny days: 263 days
Number of rainy days: 102 days
Look at detailed online map of Departamento de General San Martín
* Weather data for Departamento de General San Martín Argentina is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 39.8 | 39.8 | 37.1 | 31.1 | 26.6 | 24.1 | 25.7 | 31.6 | 33.8 | 38.5 | 40.5 | 40.7 |
| Average daytime temperature (°C) | 34.1 | 32.3 | 30.7 | 24.9 | 21.9 | 18.2 | 18.6 | 23.0 | 25.2 | 29.4 | 32.6 | 32.7 |
| Average temperature (°C) | 27.8 | 26.2 | 25.6 | 19.9 | 17.0 | 13.3 | 13.3 | 16.4 | 18.8 | 22.3 | 25.4 | 26.7 |
| Average night temperature (°C) | 22.0 | 20.4 | 21.2 | 15.4 | 12.9 | 8.9 | 8.4 | 9.9 | 12.5 | 15.5 | 18.6 | 21.2 |
| Absolute minimum temperature (°C) | 17.1 | 9.9 | 16.5 | 9.7 | 7.6 | 2.5 | 1.8 | 5.8 | 5.7 | 6.5 | 5.7 | 15.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.2 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.2 | 12.0 | 10.1 | 8.5 | 8.0 | 7.4 | 8.1 | 9.8 | 9.9 | 11.1 | 11.9 | 11.9 |
| Precipitation (mm) | 105 | 60 | 145 | 10 | 5 | 6 | 8 | 0 | 0 | 10 | 33 | 44 |
| Sunny days | 15 | 18 | 17 | 19 | 25 | 24 | 25 | 31 | 29 | 21 | 24 | 15 |
| Rainy days | 16 | 10 | 14 | 11 | 6 | 6 | 6 | 0 | 1 | 10 | 6 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Departamento de General San Martín is at