Average annual temperature is 25.5 °C
Absolute maximum temperature: 42.4 °C
Absolute minimum temperature: 8.5 °C
Number of sunny days: 144 days
Number of rainy days: 221 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) | 30.6 | 35.3 | 38.5 | 36.1 | 35.8 | 42.4 | 40.1 | 40.7 | 39.6 | 37.6 | 30.3 | 30.1 |
| Average daytime temperature (°C) | 26.5 | 27.5 | 31.2 | 30.7 | 32.7 | 37.8 | 35.6 | 35.4 | 37.1 | 30.4 | 25.5 | 23.8 |
| Average temperature (°C) | 21.0 | 21.0 | 24.6 | 25.1 | 27.3 | 31.3 | 29.5 | 29.1 | 30.4 | 25.5 | 21.0 | 19.8 |
| Average night temperature (°C) | 17.0 | 16.3 | 19.9 | 21.4 | 22.8 | 26.3 | 24.8 | 24.5 | 25.3 | 21.9 | 17.7 | 16.7 |
| Absolute minimum temperature (°C) | 9.4 | 8.5 | 11.3 | 16.6 | 17.0 | 23.0 | 21.6 | 21.7 | 22.9 | 13.6 | 12.6 | 12.1 |
| 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 | 11.4 | 12.0 | 12.6 | 13.2 | 13.4 | 13.3 | 12.9 | 12.3 | 11.7 | 11.1 | 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) | 8.2 | 8.1 | 8.9 | 8.2 | 10.0 | 11.5 | 11.5 | 11.2 | 11.1 | 7.7 | 6.2 | 5.2 |
| Precipitation (mm) | 27 | 28 | 58 | 193 | 88 | 30 | 138 | 150 | 54 | 197 | 109 | 90 |
| Sunny days | 16 | 21 | 19 | 12 | 11 | 11 | 2 | 2 | 11 | 8 | 18 | 13 |
| Rainy days | 15 | 7 | 12 | 18 | 20 | 19 | 29 | 29 | 19 | 23 | 12 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Juan during the most sunny months:
The largest precipitation sum in San Juan is at