Average annual temperature is 26.0 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 15.4 °C
Number of sunny days: 88 days
Number of rainy days: 277 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) | 30.7 | 34.7 | 34.4 | 33.1 | 35.8 | 34.3 | 35.7 | 36.5 | 37.6 | 37.3 | 33.2 | 33.8 |
| Average daytime temperature (°C) | 28.3 | 29.9 | 29.3 | 30.6 | 32.6 | 32.1 | 33.4 | 34.3 | 35.2 | 33.5 | 30.9 | 31.5 |
| Average temperature (°C) | 23.1 | 24.1 | 24.3 | 24.8 | 26.6 | 26.6 | 27.5 | 27.8 | 28.6 | 27.2 | 25.8 | 25.7 |
| Average night temperature (°C) | 19.1 | 20.1 | 20.8 | 21.1 | 21.9 | 22.0 | 22.4 | 22.5 | 23.0 | 22.5 | 21.6 | 21.2 |
| Absolute minimum temperature (°C) | 15.4 | 16.6 | 19.3 | 19.5 | 19.2 | 20.6 | 21.3 | 20.9 | 22.1 | 21.6 | 19.9 | 19.0 |
| 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 | 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 | 12.0 | 11.8 | 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) | 10.2 | 10.2 | 8.9 | 9.2 | 9.2 | 10.8 | 11.2 | 10.9 | 10.8 | 9.7 | 10.0 | 9.9 |
| Precipitation (mm) | 95 | 42 | 162 | 148 | 117 | 54 | 18 | 47 | 27 | 201 | 112 | 60 |
| Sunny days | 8 | 9 | 1 | 2 | 10 | 5 | 9 | 11 | 8 | 3 | 11 | 11 |
| Rainy days | 23 | 19 | 30 | 28 | 21 | 25 | 22 | 20 | 22 | 28 | 19 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at