Average annual temperature is 23.8 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: 15.0 °C
Number of sunny days: 45 days
Number of rainy days: 320 days
Look at detailed online map of San Luis
* Weather data for San Luis 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) | 33.6 | 33.3 | 34.6 | 32.2 | 31.2 | 30.7 | 31.5 | 32.4 | 34.6 | 34.4 | 34.1 | 33.8 |
| Average daytime temperature (°C) | 28.9 | 29.7 | 29.4 | 29.6 | 29.2 | 29.0 | 29.4 | 30.0 | 30.5 | 30.8 | 30.1 | 30.5 |
| Average temperature (°C) | 23.4 | 23.8 | 23.7 | 23.8 | 23.6 | 22.6 | 23.0 | 23.5 | 24.0 | 24.7 | 24.2 | 24.6 |
| Average night temperature (°C) | 19.6 | 20.1 | 20.0 | 19.8 | 20.0 | 18.2 | 18.6 | 18.9 | 19.6 | 20.4 | 20.5 | 20.8 |
| Absolute minimum temperature (°C) | 16.0 | 18.5 | 17.8 | 16.4 | 18.9 | 15.0 | 16.7 | 16.6 | 18.2 | 19.3 | 19.1 | 18.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.7 | 12.5 | 12.2 | 11.8 | 11.6 | 11.4 | 11.5 | 11.7 | 12.0 | 12.4 | 12.7 | 12.8 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.2 | 8.5 | 8.5 | 9.2 | 9.3 | 9.8 | 9.4 | 10.1 | 10.0 | 9.9 | 8.5 | 8.9 |
| Precipitation (mm) | 422 | 478 | 300 | 393 | 316 | 99 | 200 | 162 | 236 | 296 | 516 | 345 |
| Sunny days | 2 | 1 | 4 | 3 | 2 | 11 | 1 | 3 | 6 | 6 | 3 | 3 |
| Rainy days | 29 | 27 | 27 | 27 | 29 | 19 | 30 | 28 | 24 | 25 | 27 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Luis is at