Average annual temperature is 16.5 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -0.2 °C
Number of sunny days: 219 days
Number of rainy days: 146 days
Look at detailed online map of San Martín
* Weather data for 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) | 31.7 | 33.5 | 29.9 | 24.5 | 22.3 | 21.4 | 22.1 | 25.8 | 30.5 | 29.6 | 33.2 | 34.2 |
| Average daytime temperature (°C) | 27.3 | 26.5 | 25.8 | 19.7 | 17.7 | 14.7 | 15.0 | 18.4 | 19.9 | 23.4 | 26.0 | 26.9 |
| Average temperature (°C) | 22.2 | 21.3 | 21.3 | 15.5 | 13.1 | 10.2 | 10.1 | 12.5 | 14.0 | 17.0 | 19.6 | 21.6 |
| Average night temperature (°C) | 17.5 | 16.4 | 17.2 | 12.2 | 9.5 | 6.9 | 6.5 | 7.8 | 9.3 | 11.3 | 13.8 | 16.7 |
| Absolute minimum temperature (°C) | 14.0 | 4.9 | 11.2 | 6.6 | 4.7 | -0.2 | 0.2 | 3.3 | 3.9 | 4.3 | 3.5 | 10.0 |
| 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) | 14.0 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.2 | 11.0 | 11.9 | 12.9 | 13.8 | 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 | 12.3 | 10.3 | 8.1 | 7.8 | 7.6 | 8.2 | 9.7 | 9.4 | 10.9 | 12.2 | 11.7 |
| Precipitation (mm) | 143 | 59 | 150 | 38 | 23 | 5 | 15 | 0 | 6 | 46 | 103 | 88 |
| Sunny days | 9 | 16 | 15 | 11 | 21 | 24 | 25 | 30 | 23 | 19 | 15 | 11 |
| Rainy days | 22 | 12 | 16 | 19 | 10 | 6 | 6 | 1 | 7 | 12 | 15 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Martín is at