Average annual temperature is 25.4 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: 19.0 °C
Number of sunny days: 23 days
Number of rainy days: 342 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) | 31.6 | 32.5 | 34.0 | 33.4 | 32.8 | 30.9 | 31.0 | 33.5 | 34.5 | 35.1 | 33.8 | 32.9 |
| Average daytime temperature (°C) | 29.2 | 29.9 | 30.3 | 29.8 | 29.9 | 28.9 | 29.2 | 30.8 | 31.5 | 32.2 | 31.3 | 30.3 |
| Average temperature (°C) | 24.7 | 25.2 | 25.3 | 25.1 | 25.3 | 24.4 | 24.6 | 25.7 | 26.1 | 26.7 | 26.3 | 25.7 |
| Average night temperature (°C) | 21.8 | 22.0 | 22.2 | 22.5 | 22.6 | 21.6 | 21.9 | 22.4 | 22.8 | 23.4 | 23.3 | 23.3 |
| Absolute minimum temperature (°C) | 20.3 | 20.6 | 20.9 | 20.8 | 21.8 | 19.0 | 21.1 | 21.2 | 21.7 | 22.2 | 21.7 | 21.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.3 | 8.8 | 7.6 | 7.0 | 7.9 | 8.7 | 8.6 | 10.0 | 9.3 | 9.3 | 8.8 | 8.6 |
| Precipitation (mm) | 175 | 159 | 276 | 435 | 409 | 275 | 397 | 242 | 296 | 198 | 240 | 355 |
| Sunny days | 7 | 5 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 1 | 0 |
| Rainy days | 24 | 23 | 25 | 30 | 31 | 30 | 31 | 30 | 30 | 28 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at