Average annual temperature is 19.8 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: 6.9 °C
Number of sunny days: 211 days
Number of rainy days: 154 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) | 26.2 | 30.6 | 32.2 | 33.0 | 33.6 | 37.0 | 29.3 | 29.4 | 30.6 | 27.8 | 28.4 | 24.4 |
| Average daytime temperature (°C) | 23.8 | 26.1 | 29.0 | 30.5 | 30.8 | 32.7 | 27.0 | 26.4 | 27.6 | 24.9 | 25.5 | 21.7 |
| Average temperature (°C) | 16.4 | 18.0 | 20.2 | 21.9 | 22.7 | 24.0 | 20.5 | 20.2 | 20.5 | 18.8 | 18.6 | 15.6 |
| Average night temperature (°C) | 10.9 | 11.9 | 13.2 | 14.6 | 16.0 | 17.4 | 15.9 | 15.7 | 15.6 | 14.5 | 13.7 | 11.3 |
| Absolute minimum temperature (°C) | 8.9 | 8.8 | 9.7 | 11.8 | 13.4 | 15.6 | 14.6 | 14.4 | 14.3 | 10.4 | 8.5 | 6.9 |
| 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 | 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 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 10.1 | 10.6 | 11.3 | 11.8 | 11.7 | 11.9 | 11.2 | 10.6 | 10.9 | 9.0 | 10.0 | 8.4 |
| Precipitation (mm) | 1 | 0 | 0 | 2 | 7 | 53 | 214 | 249 | 106 | 176 | 25 | 48 |
| Sunny days | 26 | 27 | 28 | 29 | 27 | 20 | 0 | 2 | 11 | 3 | 19 | 19 |
| Rainy days | 5 | 1 | 3 | 1 | 4 | 10 | 31 | 29 | 19 | 28 | 11 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan is at