Average annual temperature is 21.4 °C
Absolute maximum temperature: 30.8 °C
Absolute minimum temperature: 14.4 °C
Number of sunny days: 44 days
Number of rainy days: 321 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) | 23.7 | 25.7 | 26.5 | 25.5 | 27.6 | 28.1 | 28.5 | 30.5 | 30.8 | 29.6 | 27.8 | 26.8 |
| Average daytime temperature (°C) | 22.2 | 22.5 | 22.8 | 23.9 | 26.0 | 26.0 | 27.1 | 27.8 | 28.5 | 26.8 | 25.6 | 25.1 |
| Average temperature (°C) | 18.9 | 19.1 | 19.7 | 20.4 | 22.2 | 22.1 | 22.5 | 23.2 | 23.6 | 22.5 | 21.7 | 21.3 |
| Average night temperature (°C) | 16.1 | 16.7 | 17.4 | 17.9 | 19.4 | 19.1 | 19.2 | 19.5 | 19.9 | 19.3 | 18.8 | 18.6 |
| Absolute minimum temperature (°C) | 14.4 | 15.6 | 16.6 | 16.6 | 18.4 | 17.6 | 18.0 | 17.5 | 18.6 | 18.2 | 17.3 | 17.2 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 11.9 | 11.7 | 11.7 |
| 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) | 10.1 | 10.0 | 9.1 | 9.0 | 9.5 | 11.0 | 11.2 | 10.9 | 10.6 | 9.7 | 9.9 | 10.1 |
| Precipitation (mm) | 72 | 110 | 184 | 238 | 116 | 56 | 44 | 92 | 64 | 220 | 170 | 61 |
| Sunny days | 3 | 0 | 0 | 0 | 6 | 7 | 6 | 7 | 7 | 0 | 4 | 4 |
| Rainy days | 28 | 28 | 31 | 30 | 25 | 23 | 25 | 24 | 23 | 31 | 26 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at