Average annual temperature is 27.1 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: 14.0 °C
Number of sunny days: 114 days
Number of rainy days: 251 days
Look at detailed online map of San Juan
* Weather data for San Juan 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) | 33.5 | 33.4 | 36.9 | 39.2 | 38.9 | 39.5 | 39.3 | 38.0 | 36.2 | 36.4 | 32.7 | 32.7 |
| Average daytime temperature (°C) | 30.4 | 31.4 | 33.8 | 36.6 | 36.9 | 37.3 | 36.1 | 35.0 | 34.3 | 33.3 | 30.6 | 28.7 |
| Average temperature (°C) | 24.4 | 25.0 | 26.7 | 28.5 | 29.1 | 29.8 | 29.4 | 28.4 | 27.4 | 27.2 | 25.5 | 23.6 |
| Average night temperature (°C) | 20.1 | 20.2 | 21.3 | 22.4 | 23.3 | 24.5 | 24.9 | 24.4 | 23.4 | 23.0 | 22.0 | 20.0 |
| Absolute minimum temperature (°C) | 14.0 | 16.0 | 18.1 | 20.4 | 19.9 | 22.1 | 23.6 | 22.9 | 22.1 | 19.0 | 19.8 | 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 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 9.6 | 10.1 | 10.6 | 11.4 | 11.5 | 11.4 | 11.0 | 10.4 | 10.6 | 10.6 | 9.6 | 9.0 |
| Precipitation (mm) | 41 | 13 | 59 | 24 | 81 | 60 | 69 | 107 | 171 | 70 | 86 | 66 |
| Sunny days | 14 | 14 | 17 | 16 | 14 | 10 | 5 | 1 | 0 | 8 | 7 | 8 |
| Rainy days | 17 | 14 | 14 | 14 | 17 | 20 | 26 | 30 | 30 | 23 | 23 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan is at