Average annual temperature is 20.5 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: 4.1 °C
Number of sunny days: 253 days
Number of rainy days: 112 days
Look at detailed online map of San Isidro (Jerónimo Hernández)
* Weather data for San Isidro (Jerónimo Hernández) 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) | 27.5 | 31.0 | 33.2 | 34.0 | 34.3 | 37.4 | 33.3 | 31.4 | 34.8 | 31.6 | 30.7 | 24.0 |
| Average daytime temperature (°C) | 24.8 | 27.2 | 30.3 | 31.5 | 31.5 | 34.8 | 29.1 | 28.8 | 30.2 | 27.7 | 26.5 | 21.1 |
| Average temperature (°C) | 16.3 | 18.3 | 21.5 | 23.0 | 23.5 | 26.1 | 21.9 | 21.5 | 22.2 | 20.1 | 17.9 | 14.0 |
| Average night temperature (°C) | 7.9 | 9.7 | 12.4 | 14.2 | 15.3 | 17.5 | 15.4 | 15.5 | 14.8 | 13.9 | 10.4 | 8.4 |
| Absolute minimum temperature (°C) | 4.9 | 5.2 | 6.8 | 10.8 | 13.4 | 14.9 | 12.2 | 12.8 | 12.2 | 8.4 | 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 | 13.3 | 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) | 10.0 | 10.5 | 11.1 | 11.6 | 11.7 | 12.3 | 12.0 | 11.1 | 11.4 | 9.9 | 9.9 | 8.0 |
| Precipitation (mm) | 0 | 0 | 6 | 1 | 13 | 15 | 95 | 97 | 51 | 36 | 36 | 46 |
| Sunny days | 28 | 28 | 25 | 25 | 22 | 25 | 10 | 8 | 24 | 15 | 24 | 19 |
| Rainy days | 3 | 0 | 6 | 5 | 9 | 5 | 21 | 23 | 6 | 16 | 6 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Isidro (Jerónimo Hernández) is at