Average annual temperature is 18.6 °C
Absolute maximum temperature: 36.0 °C
Absolute minimum temperature: -1.7 °C
Number of sunny days: 277 days
Number of rainy days: 87 days
Number of snow days: 1 day
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) | 23.4 | 29.1 | 29.4 | 30.4 | 31.5 | 36.0 | 32.8 | 33.8 | 32.1 | 28.0 | 25.9 | 22.1 |
| Average daytime temperature (°C) | 20.3 | 22.1 | 25.7 | 26.3 | 28.0 | 33.1 | 29.1 | 29.6 | 29.3 | 22.2 | 20.6 | 18.2 |
| Average temperature (°C) | 12.5 | 13.5 | 17.6 | 19.2 | 21.0 | 26.2 | 23.4 | 23.7 | 23.3 | 16.8 | 13.6 | 11.6 |
| Average night temperature (°C) | 6.3 | 7.0 | 10.6 | 12.3 | 14.5 | 18.9 | 17.7 | 17.7 | 17.1 | 12.5 | 8.9 | 6.0 |
| Absolute minimum temperature (°C) | 0.0 | -1.7 | -0.2 | 8.3 | 10.9 | 14.4 | 15.3 | 14.8 | 13.8 | 5.0 | 0.6 | -0.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.6 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.7 | 9.8 | 10.7 | 11.2 | 11.0 | 12.2 | 11.5 | 11.7 | 11.4 | 7.7 | 8.3 | 9.2 |
| Precipitation (mm) | 0 | 2 | 3 | 6 | 27 | 2 | 96 | 15 | 14 | 89 | 28 | 3 |
| Sunny days | 30 | 26 | 29 | 26 | 17 | 26 | 18 | 17 | 23 | 13 | 24 | 28 |
| Rainy days | 1 | 1 | 2 | 4 | 14 | 4 | 13 | 14 | 7 | 18 | 6 | 3 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan is at