Average annual temperature is 22.2 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: 15.3 °C
Number of sunny days: 25 days
Number of rainy days: 340 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) | 28.2 | 29.7 | 28.5 | 29.0 | 30.3 | 31.3 | 31.4 | 32.0 | 33.6 | 30.1 | 28.9 | 29.6 |
| Average daytime temperature (°C) | 25.8 | 27.2 | 26.0 | 26.2 | 27.2 | 27.4 | 28.3 | 29.0 | 30.1 | 27.8 | 27.0 | 27.2 |
| Average temperature (°C) | 20.8 | 21.9 | 21.2 | 21.4 | 22.3 | 22.2 | 22.7 | 23.1 | 23.8 | 22.4 | 22.1 | 22.6 |
| Average night temperature (°C) | 17.3 | 17.9 | 18.1 | 18.2 | 18.9 | 18.4 | 18.4 | 18.5 | 18.8 | 18.7 | 19.0 | 19.3 |
| Absolute minimum temperature (°C) | 15.3 | 15.8 | 16.1 | 16.7 | 17.3 | 16.6 | 16.1 | 16.6 | 17.9 | 15.6 | 17.0 | 17.1 |
| 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 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4 | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.9 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.3 | 9.7 | 7.7 | 8.1 | 8.4 | 9.8 | 9.8 | 9.9 | 9.8 | 8.6 | 8.7 | 8.3 |
| Precipitation (mm) | 312 | 91 | 352 | 360 | 270 | 184 | 140 | 171 | 113 | 333 | 403 | 283 |
| Sunny days | 1 | 2 | 0 | 0 | 1 | 4 | 7 | 5 | 0 | 3 | 1 | 1 |
| Rainy days | 30 | 26 | 31 | 30 | 30 | 26 | 24 | 26 | 30 | 28 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at