Average annual temperature is 20.2 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: 4.1 °C
Number of sunny days: 237 days
Number of rainy days: 128 days
Look at detailed online map of San Juan de San Guillermo
* Weather data for San Juan de San Guillermo 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) | 26.7 | 31.3 | 33.1 | 33.5 | 35.1 | 37.2 | 32.8 | 31.6 | 33.3 | 31.8 | 30.8 | 25.3 |
| Average daytime temperature (°C) | 24.7 | 26.9 | 29.9 | 31.3 | 31.6 | 35.0 | 30.0 | 29.2 | 30.0 | 28.2 | 27.0 | 22.6 |
| Average temperature (°C) | 15.6 | 17.5 | 20.7 | 22.5 | 22.9 | 25.9 | 21.7 | 21.2 | 21.6 | 20.1 | 18.0 | 14.7 |
| Average night temperature (°C) | 7.7 | 9.5 | 12.2 | 14.3 | 14.9 | 17.1 | 15.2 | 15.2 | 14.6 | 14.3 | 10.9 | 9.0 |
| Absolute minimum temperature (°C) | 5.4 | 5.3 | 5.9 | 11.5 | 11.5 | 15.5 | 12.8 | 13.1 | 12.8 | 9.8 | 5.8 | 4.1 |
| 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 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 10.1 | 10.6 | 11.1 | 11.5 | 11.7 | 12.3 | 11.8 | 10.5 | 11.3 | 9.6 | 9.9 | 7.9 |
| Precipitation (mm) | 0 | 0 | 11 | 1 | 10 | 14 | 85 | 75 | 55 | 88 | 27 | 33 |
| Sunny days | 29 | 28 | 24 | 26 | 18 | 26 | 10 | 8 | 20 | 12 | 20 | 16 |
| Rainy days | 2 | 0 | 7 | 4 | 13 | 4 | 21 | 23 | 10 | 19 | 10 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan de San Guillermo is at