Average annual temperature is 27.4 °C
Absolute maximum temperature: 31.1 °C
Absolute minimum temperature: 20.3 °C
Number of sunny days: 95 days
Number of rainy days: 270 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) | 28.0 | 27.6 | 27.6 | 29.4 | 29.8 | 30.1 | 30.5 | 30.7 | 30.7 | 31.1 | 29.4 | 28.9 |
| Average daytime temperature (°C) | 26.7 | 26.6 | 26.8 | 27.4 | 28.6 | 29.7 | 30.0 | 30.0 | 29.9 | 29.7 | 28.3 | 27.1 |
| Average temperature (°C) | 25.8 | 25.8 | 26.1 | 26.8 | 27.8 | 28.7 | 29.0 | 28.9 | 28.8 | 28.4 | 27.0 | 25.7 |
| Average night temperature (°C) | 24.8 | 25.0 | 25.4 | 26.0 | 26.5 | 27.5 | 27.7 | 27.5 | 27.4 | 27.1 | 25.7 | 24.3 |
| Absolute minimum temperature (°C) | 20.3 | 20.8 | 22.0 | 22.5 | 22.6 | 24.8 | 24.7 | 25.4 | 24.3 | 24.3 | 22.1 | 20.6 |
| 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) | 9.8 | 10.5 | 11.2 | 11.5 | 11.7 | 11.7 | 11.3 | 10.5 | 10.9 | 10.8 | 9.6 | 8.4 |
| Precipitation (mm) | 58 | 63 | 53 | 13 | 99 | 89 | 111 | 150 | 107 | 70 | 209 | 124 |
| Sunny days | 9 | 9 | 15 | 21 | 9 | 7 | 2 | 3 | 3 | 5 | 7 | 5 |
| Rainy days | 22 | 19 | 16 | 9 | 22 | 23 | 29 | 28 | 27 | 26 | 23 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan is at