Average annual temperature is 16.1 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -2.1 °C
Number of sunny days: 219 days
Number of rainy days: 146 days
Look at detailed online map of San Luis
* Weather data for San Luis 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) | 33.8 | 36.8 | 35.9 | 28.0 | 24.9 | 21.8 | 19.9 | 22.9 | 24.4 | 27.4 | 33.4 | 33.2 |
| Average daytime temperature (°C) | 30.4 | 29.2 | 28.2 | 22.0 | 18.1 | 14.3 | 12.9 | 15.3 | 17.1 | 21.5 | 25.3 | 26.4 |
| Average temperature (°C) | 24.0 | 22.6 | 22.7 | 16.3 | 12.7 | 9.1 | 8.5 | 10.1 | 12.0 | 15.5 | 18.9 | 21.0 |
| Average night temperature (°C) | 18.3 | 16.7 | 17.9 | 11.9 | 8.5 | 5.0 | 4.9 | 5.8 | 7.5 | 9.9 | 13.0 | 15.9 |
| Absolute minimum temperature (°C) | 12.6 | 7.1 | 9.6 | 5.4 | 1.2 | -0.9 | -2.1 | -0.4 | 2.0 | 2.6 | 5.9 | 10.2 |
| 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 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.3 | 13.4 | 12.3 | 11.2 | 10.2 | 9.7 | 9.9 | 10.8 | 11.9 | 13.0 | 14.1 | 14.6 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 11.7 | 11.4 | 10.4 | 8.2 | 7.1 | 6.7 | 5.9 | 7.8 | 7.4 | 10.1 | 11.4 | 11.0 |
| Precipitation (mm) | 143 | 71 | 50 | 21 | 84 | 17 | 97 | 13 | 33 | 72 | 109 | 119 |
| Sunny days | 18 | 18 | 19 | 20 | 19 | 20 | 19 | 23 | 20 | 16 | 17 | 10 |
| Rainy days | 13 | 10 | 12 | 10 | 12 | 10 | 12 | 8 | 10 | 15 | 13 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Luis during the most sunny months:
The largest precipitation sum in San Luis is at