Average annual temperature is 20.7 °C
Absolute maximum temperature: 41.0 °C
Absolute minimum temperature: -3.7 °C
Number of sunny days: 316 days
Number of rainy days: 47 days
Number of snow days: 2 days
Look at detailed online map of El Rómulo
* Weather data for El Rómulo 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) | 24.6 | 28.6 | 28.8 | 32.0 | 34.5 | 40.4 | 39.4 | 41.0 | 37.6 | 31.1 | 29.1 | 24.1 |
| Average daytime temperature (°C) | 18.4 | 19.1 | 23.4 | 27.7 | 30.5 | 36.1 | 36.6 | 35.2 | 34.4 | 27.8 | 20.7 | 17.6 |
| Average temperature (°C) | 11.2 | 11.3 | 15.8 | 19.9 | 23.9 | 29.9 | 30.9 | 29.4 | 28.3 | 21.3 | 14.6 | 11.2 |
| Average night temperature (°C) | 5.2 | 5.2 | 9.3 | 12.1 | 16.6 | 22.3 | 24.1 | 23.0 | 21.7 | 15.3 | 9.5 | 5.6 |
| Absolute minimum temperature (°C) | -1.8 | -3.7 | -0.2 | 4.0 | 14.0 | 16.9 | 20.2 | 18.9 | 17.4 | 2.0 | 2.9 | -2.0 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.7 | 14.0 | 13.9 | 13.2 | 12.3 | 11.4 | 10.7 | 10.3 |
| 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) | 8.9 | 8.8 | 9.7 | 11.8 | 11.2 | 12.6 | 12.6 | 11.7 | 11.4 | 9.9 | 8.5 | 9.1 |
| Precipitation (mm) | 1 | 8 | 19 | 0 | 12 | 0 | 0 | 37 | 5 | 3 | 13 | 0 |
| Sunny days | 29 | 22 | 26 | 29 | 21 | 29 | 27 | 25 | 27 | 26 | 26 | 29 |
| Rainy days | 1 | 6 | 4 | 1 | 10 | 1 | 4 | 6 | 3 | 5 | 4 | 2 |
| Snow days | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in El Rómulo is at