Average annual temperature is 23.2 °C
Absolute maximum temperature: 42.7 °C
Absolute minimum temperature: 1.2 °C
Number of sunny days: 255 days
Number of rainy days: 110 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) | 31.9 | 34.0 | 37.2 | 38.7 | 40.0 | 42.7 | 39.6 | 41.4 | 39.0 | 33.9 | 30.6 | 30.2 |
| Average daytime temperature (°C) | 22.6 | 23.8 | 28.6 | 29.8 | 31.6 | 37.8 | 37.4 | 38.3 | 36.3 | 28.4 | 21.6 | 21.2 |
| Average temperature (°C) | 15.3 | 15.5 | 20.3 | 22.5 | 25.4 | 31.3 | 31.5 | 32.2 | 30.3 | 23.1 | 16.1 | 14.7 |
| Average night temperature (°C) | 9.4 | 9.8 | 14.5 | 17.2 | 20.2 | 24.8 | 25.6 | 26.1 | 24.8 | 19.1 | 11.9 | 9.8 |
| Absolute minimum temperature (°C) | 2.2 | 1.2 | 4.6 | 13.1 | 17.4 | 18.5 | 23.0 | 22.3 | 22.0 | 5.1 | 3.9 | 3.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.9 | 13.6 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.7 | 10.4 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.5 | 8.4 | 8.2 | 8.9 | 9.3 | 12.3 | 12.0 | 11.6 | 10.9 | 8.3 | 6.3 | 7.6 |
| Precipitation (mm) | 6 | 5 | 20 | 30 | 119 | 26 | 5 | 98 | 6 | 39 | 30 | 41 |
| Sunny days | 26 | 21 | 23 | 18 | 13 | 18 | 24 | 29 | 21 | 17 | 22 | 23 |
| Rainy days | 5 | 7 | 8 | 12 | 18 | 12 | 7 | 2 | 9 | 14 | 8 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Marcos during the most sunny months:
The largest precipitation sum in San Marcos is at