Average annual temperature is 14.3 °C
Absolute maximum temperature: 22.5 °C
Absolute minimum temperature: 6.3 °C
Number of sunny days: 28 days
Number of rainy days: 337 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) | 20.0 | 20.9 | 20.1 | 20.6 | 21.6 | 21.4 | 21.5 | 22.5 | 22.2 | 21.5 | 21.6 | 21.1 |
| Average daytime temperature (°C) | 17.9 | 18.6 | 18.1 | 18.7 | 19.7 | 19.6 | 20.2 | 20.6 | 20.7 | 19.3 | 19.4 | 19.6 |
| Average temperature (°C) | 12.7 | 13.5 | 13.4 | 14.0 | 14.8 | 14.7 | 14.9 | 15.0 | 15.0 | 14.3 | 14.5 | 14.6 |
| Average night temperature (°C) | 8.3 | 9.6 | 9.8 | 10.4 | 11.0 | 10.7 | 10.4 | 10.6 | 10.7 | 10.7 | 10.7 | 10.4 |
| Absolute minimum temperature (°C) | 6.3 | 6.5 | 6.4 | 8.8 | 9.5 | 9.3 | 8.8 | 8.8 | 8.9 | 9.2 | 8.0 | 7.6 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 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) | 9.8 | 9.5 | 7.6 | 8.6 | 8.3 | 10.2 | 10.4 | 10.3 | 10.5 | 7.5 | 8.7 | 9.5 |
| Precipitation (mm) | 63 | 57 | 222 | 202 | 130 | 67 | 78 | 74 | 82 | 167 | 172 | 89 |
| Sunny days | 4 | 3 | 0 | 0 | 4 | 4 | 4 | 3 | 2 | 0 | 0 | 4 |
| Rainy days | 27 | 25 | 31 | 30 | 27 | 26 | 27 | 28 | 28 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at