Average annual temperature is 17.5 °C
Absolute maximum temperature: 23.4 °C
Absolute minimum temperature: 12.1 °C
Number of sunny days: 3 days
Number of rainy days: 362 days
Look at detailed online map of La Unión
* Weather data for La Unión Colombia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 20.6 | 20.9 | 20.9 | 21.4 | 22.9 | 22.9 | 23.0 | 23.4 | 23.0 | 22.1 | 22.0 | 21.7 |
| Average daytime temperature (°C) | 18.3 | 19.5 | 18.9 | 19.5 | 20.0 | 20.1 | 20.4 | 20.6 | 21.2 | 20.1 | 19.9 | 19.9 |
| Average temperature (°C) | 16.1 | 17.0 | 16.6 | 17.1 | 17.8 | 17.6 | 18.0 | 18.0 | 18.2 | 17.7 | 17.5 | 17.8 |
| Average night temperature (°C) | 14.2 | 15.0 | 14.7 | 14.8 | 16.0 | 15.5 | 16.0 | 15.7 | 15.8 | 15.7 | 15.6 | 15.9 |
| Absolute minimum temperature (°C) | 12.8 | 13.4 | 12.1 | 13.2 | 15.0 | 14.6 | 14.9 | 13.3 | 14.4 | 14.2 | 13.4 | 14.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 |
| Daylight mean duration (h) | 12.0 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 |
| Daylight minimum 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 |
| Sunshine mean duration (h) | 8.2 | 9.0 | 6.7 | 7.4 | 6.8 | 8.7 | 8.9 | 9.0 | 9.4 | 7.2 | 8.2 | 7.8 |
| Precipitation (mm) | 934 | 672 | 904 | 952 | 1446 | 1126 | 1410 | 1238 | 1161 | 1176 | 1169 | 1036 |
| Sunny days | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 29 | 31 | 29 | 31 | 31 | 30 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at