Average annual temperature is 27.4 °C
Absolute maximum temperature: 41.9 °C
Absolute minimum temperature: 13.4 °C
Number of sunny days: 135 days
Number of rainy days: 230 days
Look at detailed online map of San Román
* Weather data for San Román 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) | 34.9 | 36.6 | 40.4 | 41.9 | 40.5 | 41.7 | 37.9 | 37.0 | 35.2 | 35.0 | 33.1 | 33.9 |
| Average daytime temperature (°C) | 31.4 | 32.7 | 36.4 | 38.1 | 37.2 | 37.7 | 35.3 | 34.6 | 33.2 | 32.4 | 29.8 | 28.2 |
| Average temperature (°C) | 24.9 | 25.8 | 28.5 | 29.9 | 29.8 | 30.6 | 28.7 | 28.0 | 27.1 | 26.8 | 24.9 | 23.5 |
| Average night temperature (°C) | 20.2 | 20.6 | 22.4 | 23.5 | 23.9 | 25.0 | 24.4 | 23.8 | 23.3 | 22.7 | 21.7 | 20.1 |
| Absolute minimum temperature (°C) | 14.4 | 15.2 | 20.2 | 21.2 | 20.1 | 22.6 | 23.0 | 22.8 | 21.9 | 19.3 | 19.5 | 13.4 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.7 | 9.9 | 10.8 | 11.3 | 11.5 | 11.0 | 10.8 | 10.6 | 10.1 | 10.0 | 8.4 | 8.0 |
| Precipitation (mm) | 34 | 12 | 12 | 8 | 59 | 86 | 134 | 153 | 186 | 140 | 133 | 83 |
| Sunny days | 13 | 15 | 21 | 27 | 17 | 13 | 3 | 3 | 1 | 6 | 6 | 10 |
| Rainy days | 18 | 13 | 10 | 3 | 14 | 17 | 28 | 28 | 29 | 25 | 24 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Román is at