Average annual temperature is 23.7 °C
Absolute maximum temperature: 41.5 °C
Absolute minimum temperature: 5.8 °C
Number of sunny days: 221 days
Number of rainy days: 144 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) | 31.4 | 35.7 | 39.5 | 35.6 | 34.9 | 41.5 | 39.1 | 39.5 | 38.8 | 35.7 | 30.4 | 27.4 |
| Average daytime temperature (°C) | 26.1 | 26.7 | 30.9 | 28.5 | 30.7 | 35.8 | 36.5 | 36.7 | 35.3 | 28.7 | 23.2 | 21.8 |
| Average temperature (°C) | 19.7 | 19.1 | 22.8 | 22.5 | 25.0 | 29.0 | 29.4 | 29.4 | 28.4 | 23.3 | 18.2 | 17.2 |
| Average night temperature (°C) | 15.4 | 14.1 | 17.7 | 18.5 | 21.0 | 23.7 | 23.7 | 23.9 | 23.4 | 19.6 | 14.9 | 14.2 |
| Absolute minimum temperature (°C) | 8.6 | 5.8 | 6.2 | 13.7 | 18.7 | 20.2 | 22.2 | 21.8 | 21.0 | 6.9 | 9.0 | 9.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 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) | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 | 13.5 | 13.0 | 12.3 | 11.6 | 11.0 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.7 | 9.6 | 9.2 | 9.3 | 10.6 | 12.2 | 12.5 | 11.4 | 10.9 | 8.9 | 7.1 | 6.7 |
| Precipitation (mm) | 3 | 3 | 26 | 93 | 140 | 42 | 18 | 71 | 85 | 94 | 51 | 14 |
| Sunny days | 28 | 23 | 22 | 11 | 9 | 21 | 16 | 16 | 18 | 14 | 21 | 22 |
| Rainy days | 3 | 5 | 9 | 19 | 22 | 9 | 15 | 15 | 12 | 17 | 9 | 9 |
| 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