Average annual temperature is 23.9 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: 15.2 °C
Number of sunny days: 37 days
Number of rainy days: 328 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) | 30.3 | 31.6 | 30.5 | 31.3 | 30.4 | 29.6 | 29.8 | 33.4 | 32.0 | 33.1 | 31.1 | 30.9 |
| Average daytime temperature (°C) | 28.2 | 29.3 | 28.6 | 28.2 | 28.3 | 27.6 | 28.1 | 29.8 | 30.3 | 30.5 | 29.5 | 29.0 |
| Average temperature (°C) | 23.3 | 24.0 | 24.0 | 23.7 | 23.7 | 23.0 | 23.1 | 24.1 | 24.4 | 24.9 | 24.4 | 24.5 |
| Average night temperature (°C) | 19.3 | 19.6 | 20.5 | 20.2 | 19.9 | 19.5 | 19.3 | 19.2 | 19.2 | 20.0 | 20.1 | 20.3 |
| Absolute minimum temperature (°C) | 15.6 | 15.2 | 17.4 | 18.0 | 17.8 | 17.5 | 17.6 | 16.9 | 17.1 | 17.0 | 18.1 | 16.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 | 12.3 | 12.2 | 12.1 | 12.0 | 11.9 | 11.9 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.0 | 10.0 | 8.5 | 8.7 | 9.4 | 10.1 | 9.8 | 10.5 | 10.7 | 10.1 | 10.1 | 9.9 |
| Precipitation (mm) | 111 | 80 | 235 | 294 | 311 | 304 | 363 | 219 | 207 | 170 | 250 | 200 |
| Sunny days | 6 | 13 | 7 | 0 | 2 | 2 | 1 | 1 | 1 | 3 | 0 | 1 |
| Rainy days | 25 | 15 | 24 | 30 | 29 | 28 | 30 | 30 | 29 | 28 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at