Average annual temperature is 25.0 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: 17.4 °C
Number of sunny days: 272 days
Number of rainy days: 93 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) | 35.0 | 35.9 | 35.7 | 31.8 | 34.0 | 32.3 | 34.3 | 34.0 | 31.8 | 32.8 | 33.2 | 34.4 |
| Average daytime temperature (°C) | 32.9 | 34.8 | 32.1 | 30.5 | 31.4 | 30.6 | 31.1 | 30.6 | 30.5 | 31.0 | 30.4 | 31.6 |
| Average temperature (°C) | 25.5 | 27.7 | 26.4 | 25.8 | 25.8 | 24.6 | 24.3 | 23.9 | 23.7 | 24.0 | 23.5 | 24.9 |
| Average night temperature (°C) | 20.7 | 23.2 | 22.8 | 22.9 | 22.0 | 20.6 | 20.0 | 19.6 | 19.3 | 19.9 | 19.3 | 20.8 |
| Absolute minimum temperature (°C) | 18.3 | 21.7 | 21.7 | 21.3 | 20.9 | 19.2 | 19.0 | 18.5 | 18.2 | 18.7 | 17.4 | 19.2 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.4 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 10.3 | 10.5 | 9.3 | 8.7 | 9.8 | 10.6 | 10.6 | 10.5 | 10.9 | 10.2 | 10.0 | 10.4 |
| Precipitation (mm) | 9 | 15 | 264 | 306 | 2 | 0 | 1 | 8 | 0 | 7 | 11 | 37 |
| Sunny days | 23 | 18 | 5 | 1 | 30 | 30 | 29 | 30 | 30 | 27 | 27 | 22 |
| Rainy days | 8 | 10 | 26 | 29 | 1 | 0 | 2 | 1 | 0 | 4 | 3 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in La Unión is at