Average annual temperature is 26.5 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: 14.2 °C
Number of sunny days: 136 days
Number of rainy days: 229 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) | 30.4 | 32.8 | 36.9 | 39.6 | 38.9 | 40.3 | 34.3 | 34.6 | 32.9 | 33.7 | 31.4 | 31.1 |
| Average daytime temperature (°C) | 28.0 | 28.7 | 33.3 | 35.9 | 35.6 | 36.2 | 32.6 | 32.5 | 32.0 | 30.7 | 28.1 | 26.7 |
| Average temperature (°C) | 23.3 | 23.8 | 27.2 | 29.3 | 29.4 | 30.3 | 27.4 | 27.3 | 26.9 | 26.1 | 24.3 | 22.7 |
| Average night temperature (°C) | 19.7 | 20.2 | 22.4 | 23.8 | 24.1 | 25.2 | 23.4 | 23.4 | 22.9 | 22.6 | 21.6 | 19.8 |
| Absolute minimum temperature (°C) | 14.2 | 14.5 | 19.3 | 20.6 | 19.4 | 22.6 | 22.5 | 21.7 | 21.6 | 19.6 | 18.8 | 14.3 |
| 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 | 12.5 | 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) | 9.9 | 9.8 | 10.9 | 11.5 | 11.6 | 11.6 | 11.1 | 11.2 | 10.6 | 9.9 | 8.3 | 8.2 |
| Precipitation (mm) | 91 | 139 | 15 | 32 | 28 | 122 | 266 | 214 | 210 | 318 | 233 | 155 |
| Sunny days | 16 | 13 | 19 | 20 | 22 | 18 | 2 | 6 | 1 | 4 | 3 | 12 |
| Rainy days | 15 | 15 | 12 | 10 | 9 | 12 | 29 | 25 | 29 | 27 | 27 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Román is at