Average annual temperature is 21.6 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: 9.6 °C
Number of sunny days: 63 days
Number of rainy days: 302 days
Look at detailed online map of San Antonio de La Unión
* Weather data for San Antonio de La Unión 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) | 28.0 | 29.5 | 33.0 | 35.2 | 32.6 | 35.0 | 29.8 | 30.3 | 29.8 | 32.9 | 26.3 | 26.4 |
| Average daytime temperature (°C) | 23.4 | 25.3 | 27.6 | 29.9 | 29.8 | 30.2 | 27.5 | 28.3 | 28.2 | 26.3 | 23.3 | 22.1 |
| Average temperature (°C) | 18.7 | 19.5 | 21.4 | 22.9 | 23.7 | 24.4 | 22.3 | 22.8 | 22.6 | 21.6 | 19.9 | 18.8 |
| Average night temperature (°C) | 15.0 | 15.4 | 17.0 | 18.0 | 19.5 | 20.4 | 19.0 | 19.2 | 19.1 | 18.7 | 17.7 | 16.2 |
| Absolute minimum temperature (°C) | 9.6 | 13.2 | 15.1 | 15.2 | 17.3 | 18.0 | 18.1 | 17.9 | 18.1 | 16.4 | 13.3 | 12.0 |
| 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 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| 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) | 9.6 | 10.1 | 11.0 | 11.5 | 10.8 | 10.3 | 9.9 | 10.3 | 10.8 | 9.3 | 7.9 | 7.9 |
| Precipitation (mm) | 48 | 40 | 63 | 28 | 37 | 130 | 177 | 131 | 156 | 257 | 394 | 140 |
| Sunny days | 11 | 7 | 10 | 15 | 11 | 2 | 1 | 0 | 0 | 2 | 2 | 2 |
| Rainy days | 20 | 21 | 21 | 15 | 20 | 28 | 30 | 31 | 30 | 29 | 28 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Antonio de La Unión is at