Average annual temperature is 21.6 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: 9.7 °C
Number of sunny days: 70 days
Number of rainy days: 295 days
Look at detailed online map of San Rafael Río Seco
* Weather data for San Rafael Río Seco 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) | 29.0 | 34.3 | 34.0 | 34.1 | 33.1 | 35.3 | 31.2 | 30.9 | 29.2 | 30.5 | 28.6 | 30.0 |
| Average daytime temperature (°C) | 24.5 | 25.9 | 29.0 | 28.7 | 29.6 | 30.5 | 28.5 | 28.3 | 28.3 | 26.4 | 24.0 | 21.9 |
| Average temperature (°C) | 18.7 | 19.2 | 22.2 | 22.4 | 23.5 | 24.9 | 22.8 | 22.7 | 22.6 | 21.7 | 19.8 | 18.1 |
| Average night temperature (°C) | 13.9 | 13.9 | 16.5 | 17.3 | 17.9 | 19.8 | 18.4 | 18.2 | 18.0 | 18.1 | 16.6 | 15.1 |
| Absolute minimum temperature (°C) | 9.9 | 9.7 | 13.5 | 13.9 | 14.1 | 15.9 | 16.9 | 16.6 | 16.5 | 14.2 | 13.3 | 10.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.8 | 12.2 | 11.7 | 11.3 | 11.0 |
| 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 | 10.0 |
| Sunshine mean duration (h) | 9.1 | 9.1 | 9.6 | 9.7 | 10.7 | 10.4 | 10.6 | 10.5 | 11.1 | 9.2 | 7.6 | 6.8 |
| Precipitation (mm) | 40 | 37 | 79 | 158 | 95 | 188 | 224 | 309 | 158 | 185 | 104 | 110 |
| Sunny days | 11 | 13 | 13 | 5 | 9 | 11 | 0 | 2 | 0 | 0 | 2 | 4 |
| Rainy days | 20 | 15 | 18 | 25 | 22 | 19 | 31 | 29 | 30 | 31 | 28 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Rafael Río Seco is at