Average annual temperature is 21.9 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: 9.3 °C
Number of sunny days: 65 days
Number of rainy days: 300 days
Look at detailed online map of San Juan del Río Grande
* Weather data for San Juan del Río Grande Honduras is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.2 | 30.9 | 32.2 | 35.4 | 33.5 | 32.4 | 32.0 | 32.6 | 32.6 | 31.2 | 28.9 | 30.8 |
| Average daytime temperature (°C) | 25.7 | 27.7 | 29.7 | 32.0 | 31.0 | 29.3 | 28.7 | 29.7 | 29.9 | 27.8 | 26.0 | 25.7 |
| Average temperature (°C) | 19.1 | 20.2 | 22.0 | 23.6 | 23.8 | 22.7 | 22.4 | 22.9 | 22.9 | 21.9 | 20.7 | 20.2 |
| Average night temperature (°C) | 14.2 | 14.8 | 15.8 | 16.5 | 18.0 | 18.1 | 18.1 | 18.0 | 17.9 | 17.8 | 17.1 | 16.1 |
| Absolute minimum temperature (°C) | 9.8 | 11.6 | 13.2 | 14.3 | 14.5 | 17.2 | 15.3 | 16.0 | 16.4 | 15.3 | 12.6 | 9.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.8 | 10.1 | 10.5 | 11.1 | 10.2 | 9.7 | 10.4 | 10.4 | 10.7 | 10.2 | 9.6 | 9.6 |
| Precipitation (mm) | 19 | 23 | 39 | 5 | 79 | 206 | 189 | 134 | 186 | 183 | 128 | 44 |
| Sunny days | 10 | 6 | 9 | 14 | 11 | 1 | 0 | 2 | 1 | 1 | 5 | 5 |
| Rainy days | 21 | 22 | 22 | 16 | 20 | 29 | 31 | 29 | 29 | 30 | 25 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan del Río Grande is at