Average annual temperature is 26.6 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 13.9 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of San Marcos
* Weather data for San Marcos Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.3 | 33.2 | 36.6 | 39.0 | 38.8 | 39.3 | 37.9 | 35.7 | 34.5 | 35.5 | 32.9 | 32.2 |
| Average daytime temperature (°C) | 29.6 | 30.5 | 33.5 | 36.3 | 36.7 | 37.0 | 35.3 | 33.6 | 33.0 | 32.6 | 30.0 | 28.2 |
| Average temperature (°C) | 23.8 | 24.5 | 26.4 | 28.4 | 29.1 | 29.5 | 28.5 | 27.3 | 27.0 | 26.8 | 25.0 | 23.2 |
| Average night temperature (°C) | 19.9 | 20.0 | 21.2 | 22.4 | 23.3 | 24.3 | 24.4 | 23.9 | 23.3 | 22.7 | 21.6 | 19.9 |
| Absolute minimum temperature (°C) | 13.9 | 15.5 | 17.3 | 20.1 | 19.3 | 22.2 | 23.5 | 22.2 | 21.8 | 19.1 | 19.3 | 14.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 9.4 | 10.1 | 10.1 | 11.4 | 11.6 | 11.3 | 10.9 | 10.7 | 10.7 | 10.7 | 9.1 | 8.9 |
| Precipitation (mm) | 50 | 13 | 34 | 18 | 44 | 64 | 99 | 165 | 171 | 53 | 56 | 55 |
| Sunny days | 15 | 13 | 20 | 21 | 16 | 11 | 6 | 1 | 0 | 10 | 7 | 9 |
| Rainy days | 16 | 15 | 11 | 9 | 15 | 19 | 25 | 30 | 30 | 21 | 23 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Marcos is at