Average annual temperature is 24.7 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: 15.2 °C
Number of sunny days: 41 days
Number of rainy days: 324 days
Look at detailed online map of La Unión
* Weather data for La Unión Peru is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.7 | 32.2 | 32.7 | 32.2 | 31.1 | 31.2 | 31.9 | 33.9 | 35.4 | 35.4 | 33.9 | 33.3 |
| Average daytime temperature (°C) | 28.9 | 29.1 | 29.3 | 30.0 | 29.1 | 28.7 | 30.4 | 31.7 | 31.6 | 32.2 | 30.0 | 30.1 |
| Average temperature (°C) | 23.9 | 24.0 | 24.3 | 24.6 | 24.4 | 23.4 | 24.4 | 25.2 | 25.5 | 26.2 | 25.0 | 25.2 |
| Average night temperature (°C) | 20.7 | 21.2 | 21.3 | 21.2 | 21.2 | 19.4 | 20.0 | 20.0 | 21.0 | 21.9 | 21.8 | 22.2 |
| Absolute minimum temperature (°C) | 16.6 | 19.0 | 20.3 | 18.7 | 20.1 | 15.2 | 18.1 | 18.0 | 19.0 | 20.5 | 19.8 | 20.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 | 11.6 | 11.8 | 12.0 | 12.3 | 12.6 | 12.7 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 7.2 | 7.4 | 7.2 | 8.5 | 9.1 | 9.3 | 10.1 | 10.2 | 9.7 | 9.3 | 7.8 | 8.0 |
| Precipitation (mm) | 362 | 492 | 477 | 281 | 256 | 90 | 83 | 54 | 141 | 185 | 302 | 342 |
| Sunny days | 3 | 0 | 0 | 4 | 0 | 5 | 5 | 11 | 5 | 6 | 1 | 1 |
| Rainy days | 28 | 28 | 31 | 26 | 31 | 25 | 26 | 20 | 25 | 25 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at