Average annual temperature is 25.4 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: 17.3 °C
Number of sunny days: 21 days
Number of rainy days: 344 days
Look at detailed online map of Unión
* Weather data for 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) | 32.0 | 32.8 | 33.8 | 32.6 | 31.6 | 31.1 | 32.1 | 33.8 | 35.2 | 35.5 | 35.3 | 32.3 |
| Average daytime temperature (°C) | 29.4 | 29.5 | 29.2 | 29.4 | 29.2 | 28.1 | 29.6 | 31.2 | 32.0 | 33.4 | 31.3 | 29.6 |
| Average temperature (°C) | 24.8 | 24.9 | 24.8 | 24.8 | 25.1 | 24.0 | 24.9 | 25.8 | 26.3 | 27.2 | 26.2 | 25.5 |
| Average night temperature (°C) | 21.7 | 22.3 | 22.2 | 22.1 | 22.5 | 21.4 | 21.9 | 22.3 | 22.8 | 23.5 | 23.0 | 23.0 |
| Absolute minimum temperature (°C) | 20.7 | 21.2 | 21.2 | 20.8 | 20.7 | 17.3 | 20.4 | 20.9 | 21.2 | 22.1 | 22.1 | 21.8 |
| 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) | 12.3 | 12.2 | 12.1 | 12.0 | 11.9 | 11.9 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 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) | 8.5 | 7.6 | 6.7 | 7.3 | 8.4 | 8.2 | 9.7 | 10.0 | 9.3 | 9.9 | 8.9 | 7.8 |
| Precipitation (mm) | 277 | 355 | 355 | 369 | 352 | 242 | 203 | 177 | 219 | 144 | 365 | 441 |
| Sunny days | 1 | 0 | 2 | 0 | 0 | 3 | 0 | 4 | 4 | 3 | 4 | 0 |
| Rainy days | 30 | 28 | 29 | 30 | 31 | 27 | 31 | 27 | 26 | 28 | 26 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Unión is at