Average annual temperature is 24.1 °C
Absolute maximum temperature: 45.3 °C
Absolute minimum temperature: 3.9 °C
Number of sunny days: 204 days
Number of rainy days: 161 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) | 42.0 | 40.1 | 34.8 | 33.5 | 29.1 | 29.4 | 30.9 | 35.0 | 40.7 | 44.2 | 45.3 | 41.2 |
| Average daytime temperature (°C) | 35.6 | 33.1 | 32.1 | 26.4 | 23.7 | 23.0 | 23.2 | 28.2 | 28.8 | 32.9 | 33.4 | 34.1 |
| Average temperature (°C) | 29.4 | 27.5 | 27.0 | 21.7 | 19.3 | 18.7 | 18.6 | 21.9 | 22.6 | 26.5 | 27.8 | 28.7 |
| Average night temperature (°C) | 23.9 | 22.6 | 22.7 | 17.7 | 15.9 | 15.5 | 15.0 | 16.9 | 17.9 | 21.1 | 23.0 | 24.3 |
| Absolute minimum temperature (°C) | 16.3 | 13.8 | 19.8 | 12.2 | 10.0 | 4.0 | 3.9 | 9.1 | 9.0 | 12.4 | 11.0 | 19.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.5 | 13.0 | 12.2 | 11.5 | 10.9 | 10.6 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.7 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 11.0 | 11.1 | 9.9 | 8.2 | 6.3 | 7.4 | 7.3 | 9.1 | 8.9 | 9.7 | 10.1 | 9.8 |
| Precipitation (mm) | 91 | 66 | 147 | 80 | 120 | 23 | 40 | 17 | 65 | 48 | 116 | 200 |
| Sunny days | 18 | 14 | 13 | 18 | 17 | 17 | 22 | 28 | 19 | 14 | 11 | 13 |
| Rainy days | 13 | 14 | 18 | 12 | 14 | 13 | 9 | 3 | 11 | 17 | 19 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Luis is at