Average annual temperature is 27.2 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: 16.9 °C
Number of sunny days: 102 days
Number of rainy days: 263 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) | 36.9 | 35.9 | 35.8 | 36.4 | 36.9 | 33.7 | 34.5 | 34.4 | 34.0 | 33.1 | 34.3 | 36.5 |
| Average daytime temperature (°C) | 32.9 | 33.8 | 33.8 | 35.1 | 34.5 | 32.5 | 32.7 | 32.5 | 32.5 | 31.2 | 31.7 | 34.3 |
| Average temperature (°C) | 25.9 | 26.8 | 27.4 | 28.6 | 28.7 | 27.6 | 27.2 | 27.3 | 27.1 | 26.0 | 26.8 | 27.2 |
| Average night temperature (°C) | 19.7 | 20.8 | 22.2 | 22.8 | 23.5 | 23.8 | 22.9 | 22.9 | 22.8 | 22.6 | 22.5 | 21.6 |
| Absolute minimum temperature (°C) | 16.9 | 18.2 | 20.4 | 20.5 | 22.2 | 22.5 | 21.6 | 20.6 | 21.2 | 20.3 | 19.9 | 18.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.5 | 10.9 | 10.9 | 11.4 | 11.4 | 10.8 | 9.3 | 9.3 | 9.8 | 8.4 | 9.5 | 10.2 |
| Precipitation (mm) | 6 | 0 | 42 | 31 | 72 | 185 | 212 | 250 | 217 | 443 | 27 | 1 |
| Sunny days | 22 | 24 | 5 | 9 | 3 | 0 | 1 | 1 | 1 | 1 | 9 | 26 |
| Rainy days | 9 | 4 | 26 | 21 | 28 | 30 | 30 | 30 | 29 | 30 | 21 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Román is at