Average annual temperature is 27.5 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 19.2 °C
Number of sunny days: 104 days
Number of rainy days: 261 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) | 34.0 | 36.7 | 37.3 | 36.5 | 39.0 | 35.0 | 38.4 | 37.1 | 37.0 | 34.2 | 33.2 | 36.1 |
| Average daytime temperature (°C) | 32.2 | 33.6 | 33.6 | 34.0 | 33.4 | 31.6 | 33.3 | 34.0 | 33.2 | 31.5 | 31.2 | 34.1 |
| Average temperature (°C) | 26.4 | 27.2 | 27.4 | 27.7 | 27.9 | 27.1 | 28.3 | 28.4 | 28.1 | 26.8 | 26.7 | 28.2 |
| Average night temperature (°C) | 21.8 | 21.8 | 22.7 | 23.4 | 24.3 | 24.1 | 24.7 | 24.6 | 24.6 | 23.8 | 23.7 | 23.9 |
| Absolute minimum temperature (°C) | 19.2 | 19.4 | 21.3 | 22.1 | 22.6 | 22.7 | 22.8 | 23.2 | 23.4 | 22.3 | 22.6 | 22.3 |
| 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) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.7 | 12.7 | 12.5 | 12.2 | 11.9 | 11.7 | 11.5 |
| 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) | 10.5 | 10.9 | 10.6 | 10.4 | 9.0 | 9.3 | 10.1 | 9.5 | 9.5 | 9.0 | 9.0 | 10.4 |
| Precipitation (mm) | 21 | 0 | 66 | 108 | 180 | 129 | 33 | 85 | 94 | 216 | 132 | 16 |
| Sunny days | 16 | 25 | 10 | 3 | 7 | 6 | 6 | 6 | 3 | 2 | 3 | 17 |
| Rainy days | 15 | 3 | 21 | 27 | 24 | 24 | 25 | 25 | 27 | 29 | 27 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at