Average annual temperature is 24.4 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 9.2 °C
Number of sunny days: 111 days
Number of rainy days: 254 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) | 30.8 | 34.0 | 35.1 | 34.9 | 35.5 | 40.4 | 36.3 | 36.1 | 36.8 | 35.2 | 30.3 | 31.1 |
| Average daytime temperature (°C) | 26.3 | 26.4 | 30.1 | 30.0 | 32.4 | 35.4 | 33.2 | 32.9 | 34.6 | 29.4 | 25.1 | 24.0 |
| Average temperature (°C) | 20.7 | 20.3 | 23.7 | 24.7 | 26.7 | 29.1 | 27.1 | 26.8 | 27.9 | 24.7 | 21.0 | 19.9 |
| Average night temperature (°C) | 16.8 | 15.8 | 19.4 | 21.1 | 22.5 | 24.4 | 23.2 | 22.8 | 22.9 | 21.5 | 18.1 | 16.8 |
| Absolute minimum temperature (°C) | 9.7 | 9.2 | 12.8 | 16.4 | 18.0 | 21.8 | 21.2 | 20.9 | 21.1 | 15.1 | 12.5 | 12.2 |
| 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 | 10.0 |
| 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 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.3 | 7.5 | 8.7 | 8.4 | 10.6 | 11.3 | 10.5 | 10.4 | 11.1 | 7.9 | 5.9 | 4.9 |
| Precipitation (mm) | 47 | 40 | 75 | 212 | 69 | 77 | 158 | 262 | 61 | 386 | 99 | 111 |
| Sunny days | 15 | 16 | 15 | 9 | 13 | 9 | 2 | 4 | 4 | 6 | 9 | 9 |
| Rainy days | 16 | 12 | 16 | 21 | 18 | 21 | 29 | 27 | 26 | 25 | 21 | 22 |
| 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