Average annual temperature is 26.2 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 49 days
Number of rainy days: 316 days
Look at detailed online map of Río San Juan
* Weather data for Río San Juan Dominican Republic is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.3 | 29.3 | 30.9 | 30.9 | 33.0 | 35.3 | 33.2 | 33.7 | 34.4 | 34.8 | 32.0 | 30.0 |
| Average daytime temperature (°C) | 26.4 | 26.9 | 27.8 | 28.7 | 31.3 | 32.2 | 31.4 | 31.0 | 31.8 | 31.7 | 29.5 | 27.7 |
| Average temperature (°C) | 23.6 | 23.9 | 24.3 | 24.9 | 26.8 | 28.4 | 28.1 | 27.8 | 27.9 | 27.6 | 26.2 | 24.6 |
| Average night temperature (°C) | 21.2 | 21.4 | 21.4 | 21.9 | 23.7 | 25.2 | 25.4 | 25.3 | 24.9 | 24.6 | 23.5 | 22.1 |
| Absolute minimum temperature (°C) | 18.2 | 18.0 | 19.5 | 19.3 | 22.1 | 24.0 | 23.5 | 23.3 | 23.8 | 22.4 | 22.1 | 20.1 |
| 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 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 9.8 | 10.4 | 10.9 | 11.4 | 10.7 | 11.7 | 11.3 | 10.3 | 10.6 | 10.5 | 9.7 | 9.2 |
| Precipitation (mm) | 105 | 60 | 49 | 118 | 114 | 37 | 64 | 128 | 103 | 117 | 80 | 160 |
| Sunny days | 6 | 4 | 11 | 1 | 1 | 6 | 4 | 2 | 1 | 4 | 2 | 7 |
| Rainy days | 25 | 24 | 20 | 29 | 30 | 24 | 27 | 29 | 29 | 27 | 28 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río San Juan is at