Average annual temperature is 22.9 °C
Absolute maximum temperature: 43.7 °C
Absolute minimum temperature: 3.0 °C
Number of sunny days: 208 days
Number of rainy days: 157 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) | 30.7 | 35.3 | 38.5 | 39.1 | 37.1 | 43.7 | 38.9 | 40.5 | 39.4 | 32.9 | 32.3 | 29.9 |
| Average daytime temperature (°C) | 23.4 | 24.7 | 28.8 | 29.0 | 30.0 | 37.1 | 36.4 | 37.1 | 35.1 | 26.7 | 21.4 | 20.5 |
| Average temperature (°C) | 17.1 | 17.2 | 21.1 | 22.0 | 24.3 | 30.0 | 29.7 | 30.2 | 28.8 | 21.7 | 16.4 | 15.7 |
| Average night temperature (°C) | 12.2 | 11.7 | 15.5 | 17.3 | 19.8 | 23.4 | 24.1 | 24.4 | 23.3 | 18.6 | 13.0 | 12.3 |
| Absolute minimum temperature (°C) | 5.7 | 3.0 | 3.5 | 10.9 | 16.4 | 18.3 | 22.2 | 21.9 | 20.9 | 5.5 | 6.8 | 6.8 |
| 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 | 13.8 | 13.6 | 13.0 | 12.3 | 11.5 | 10.9 | 10.5 |
| 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) | 8.3 | 9.6 | 8.9 | 8.9 | 10.1 | 11.9 | 12.1 | 11.6 | 11.0 | 7.8 | 6.3 | 7.4 |
| Precipitation (mm) | 3 | 2 | 17 | 29 | 80 | 33 | 46 | 35 | 16 | 109 | 68 | 34 |
| Sunny days | 26 | 24 | 18 | 14 | 4 | 16 | 19 | 19 | 18 | 7 | 20 | 23 |
| Rainy days | 5 | 4 | 13 | 16 | 27 | 14 | 12 | 12 | 12 | 24 | 10 | 8 |
| 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