Average annual temperature is 27.0 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: 19.8 °C
Number of sunny days: 62 days
Number of rainy days: 303 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) | 34.3 | 37.2 | 37.3 | 33.7 | 35.7 | 34.9 | 36.6 | 35.5 | 34.3 | 33.7 | 34.0 | 35.2 |
| Average daytime temperature (°C) | 31.4 | 34.5 | 32.1 | 31.4 | 31.8 | 31.7 | 32.6 | 32.4 | 32.5 | 31.3 | 31.3 | 32.5 |
| Average temperature (°C) | 25.9 | 28.2 | 26.6 | 26.3 | 27.2 | 26.9 | 27.5 | 27.4 | 27.4 | 26.6 | 26.6 | 27.4 |
| Average night temperature (°C) | 21.7 | 23.1 | 22.8 | 22.8 | 23.8 | 23.3 | 23.5 | 23.7 | 23.6 | 23.4 | 23.4 | 23.6 |
| Absolute minimum temperature (°C) | 19.8 | 21.1 | 20.5 | 21.5 | 22.7 | 20.8 | 22.4 | 22.6 | 22.4 | 22.4 | 22.7 | 22.1 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 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) | 10.0 | 10.5 | 9.3 | 9.0 | 8.5 | 9.3 | 10.6 | 10.2 | 9.6 | 8.8 | 8.8 | 9.6 |
| Precipitation (mm) | 102 | 20 | 183 | 279 | 287 | 500 | 262 | 389 | 425 | 381 | 399 | 124 |
| Sunny days | 10 | 15 | 3 | 0 | 3 | 6 | 7 | 3 | 1 | 0 | 2 | 12 |
| Rainy days | 21 | 13 | 28 | 30 | 28 | 24 | 24 | 28 | 29 | 31 | 28 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at