Average annual temperature is 15.9 °C
Absolute maximum temperature: 30.8 °C
Absolute minimum temperature: 1.6 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Río San Juan
* Weather data for Río 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) | 24.6 | 28.6 | 28.7 | 29.4 | 30.8 | 30.1 | 25.4 | 24.3 | 25.7 | 24.9 | 24.4 | 23.0 |
| Average daytime temperature (°C) | 21.9 | 23.6 | 25.3 | 25.8 | 25.2 | 26.1 | 22.9 | 22.5 | 23.2 | 22.5 | 21.9 | 21.0 |
| Average temperature (°C) | 13.7 | 14.7 | 16.1 | 17.3 | 17.6 | 18.3 | 16.4 | 16.2 | 16.3 | 15.8 | 15.0 | 13.4 |
| Average night temperature (°C) | 7.6 | 8.5 | 10.0 | 11.8 | 12.5 | 12.4 | 10.9 | 11.3 | 10.8 | 10.5 | 9.5 | 7.3 |
| Absolute minimum temperature (°C) | 3.8 | 5.4 | 5.9 | 10.1 | 10.1 | 9.9 | 9.4 | 9.8 | 9.7 | 8.1 | 7.6 | 1.6 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.3 | 10.6 | 11.2 | 11.3 | 11.0 | 11.3 | 10.2 | 10.3 | 10.0 | 10.1 | 10.0 | 9.6 |
| Precipitation (mm) | 1 | 1 | 11 | 46 | 94 | 104 | 173 | 224 | 140 | 78 | 36 | 5 |
| Sunny days | 28 | 23 | 14 | 6 | 2 | 11 | 1 | 2 | 3 | 7 | 13 | 19 |
| Rainy days | 3 | 5 | 17 | 24 | 29 | 19 | 30 | 29 | 27 | 24 | 17 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río San Juan is at