Average annual temperature is 23.4 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: 11.3 °C
Number of sunny days: 46 days
Number of rainy days: 319 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) | 31.7 | 30.6 | 30.6 | 30.2 | 29.0 | 28.4 | 28.5 | 30.2 | 31.7 | 34.6 | 32.9 | 32.6 |
| Average daytime temperature (°C) | 27.8 | 27.9 | 28.5 | 28.0 | 26.4 | 25.9 | 26.4 | 28.6 | 29.4 | 30.7 | 29.1 | 29.0 |
| Average temperature (°C) | 23.2 | 23.2 | 23.6 | 23.4 | 22.4 | 20.9 | 21.8 | 23.3 | 24.1 | 25.3 | 24.5 | 24.4 |
| Average night temperature (°C) | 19.9 | 20.2 | 20.3 | 20.0 | 19.3 | 17.0 | 18.5 | 19.3 | 20.1 | 21.3 | 21.1 | 21.2 |
| Absolute minimum temperature (°C) | 17.0 | 18.5 | 18.3 | 18.1 | 17.2 | 11.3 | 15.5 | 15.4 | 18.0 | 19.3 | 18.4 | 18.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum 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 |
| Daylight mean duration (h) | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 11.3 | 11.4 | 11.7 | 12.0 | 12.4 | 12.7 | 12.9 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.1 | 7.7 | 8.2 | 9.2 | 8.4 | 9.3 | 8.9 | 9.9 | 10.0 | 9.4 | 9.7 | 8.5 |
| Precipitation (mm) | 479 | 449 | 368 | 161 | 207 | 96 | 138 | 52 | 112 | 157 | 386 | 446 |
| Sunny days | 1 | 0 | 1 | 4 | 4 | 12 | 2 | 10 | 6 | 5 | 1 | 0 |
| Rainy days | 30 | 28 | 30 | 26 | 27 | 18 | 29 | 21 | 24 | 26 | 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