Average annual temperature is 24.7 °C
Absolute maximum temperature: 41.8 °C
Absolute minimum temperature: 9.1 °C
Number of sunny days: 99 days
Number of rainy days: 266 days
Look at detailed online map of San Juan
* Weather data for San Juan Bolivia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.7 | 32.7 | 32.7 | 31.1 | 29.9 | 28.7 | 29.8 | 33.2 | 36.7 | 41.8 | 38.6 | 34.8 |
| Average daytime temperature (°C) | 30.2 | 29.2 | 29.8 | 28.7 | 26.6 | 25.4 | 26.1 | 29.8 | 31.3 | 34.0 | 33.0 | 32.2 |
| Average temperature (°C) | 25.2 | 24.5 | 25.1 | 24.2 | 22.4 | 20.9 | 21.8 | 24.1 | 25.7 | 27.7 | 27.5 | 27.0 |
| Average night temperature (°C) | 21.7 | 21.5 | 22.2 | 20.8 | 19.6 | 17.4 | 18.8 | 19.8 | 21.7 | 23.1 | 23.7 | 23.6 |
| Absolute minimum temperature (°C) | 17.8 | 15.8 | 21.0 | 18.2 | 16.0 | 9.1 | 13.5 | 14.8 | 15.8 | 17.7 | 19.0 | 22.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.0 | 12.6 | 12.2 | 11.7 | 11.3 | 11.1 | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 8.2 | 6.7 | 7.5 | 8.6 | 6.6 | 8.5 | 8.0 | 9.3 | 8.6 | 9.3 | 9.3 | 9.3 |
| Precipitation (mm) | 505 | 421 | 377 | 156 | 189 | 108 | 65 | 17 | 78 | 136 | 158 | 227 |
| Sunny days | 3 | 3 | 1 | 5 | 10 | 10 | 11 | 21 | 16 | 12 | 5 | 2 |
| Rainy days | 28 | 25 | 30 | 25 | 21 | 20 | 20 | 10 | 14 | 19 | 25 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan is at