Average annual temperature is 27.9 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 19.9 °C
Number of sunny days: 101 days
Number of rainy days: 264 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) | 34.8 | 36.5 | 37.2 | 36.8 | 38.0 | 34.7 | 36.8 | 36.6 | 35.9 | 33.6 | 33.1 | 35.1 |
| Average daytime temperature (°C) | 32.7 | 34.6 | 34.2 | 33.8 | 32.9 | 31.5 | 32.8 | 33.2 | 32.4 | 30.9 | 30.9 | 33.2 |
| Average temperature (°C) | 27.1 | 28.1 | 28.1 | 28.2 | 28.2 | 27.5 | 28.4 | 28.5 | 28.2 | 27.0 | 26.9 | 28.1 |
| Average night temperature (°C) | 22.5 | 22.9 | 23.7 | 24.2 | 24.7 | 24.6 | 25.1 | 25.0 | 25.2 | 24.3 | 24.1 | 24.2 |
| Absolute minimum temperature (°C) | 19.9 | 20.6 | 22.3 | 22.5 | 23.3 | 23.6 | 23.3 | 23.4 | 24.0 | 22.8 | 22.7 | 22.4 |
| 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 | 12.4 | 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 | 10.5 | 10.3 | 9.2 | 9.6 | 10.2 | 9.6 | 9.4 | 8.7 | 9.3 | 10.4 |
| Precipitation (mm) | 32 | 1 | 51 | 107 | 311 | 255 | 136 | 165 | 156 | 283 | 188 | 22 |
| Sunny days | 15 | 22 | 12 | 4 | 7 | 3 | 8 | 7 | 0 | 2 | 4 | 17 |
| Rainy days | 16 | 6 | 19 | 26 | 24 | 27 | 23 | 24 | 30 | 29 | 26 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at