Average annual temperature is 25.4 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: 10.1 °C
Number of sunny days: 93 days
Number of rainy days: 272 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) | 32.1 | 31.7 | 32.1 | 31.7 | 32.0 | 31.2 | 33.2 | 35.8 | 36.6 | 37.2 | 36.9 | 33.4 |
| Average daytime temperature (°C) | 29.2 | 28.9 | 29.5 | 29.2 | 28.5 | 28.5 | 31.5 | 32.8 | 34.0 | 33.8 | 32.3 | 31.2 |
| Average temperature (°C) | 24.6 | 24.4 | 24.6 | 24.6 | 24.3 | 22.9 | 25.1 | 26.2 | 27.4 | 27.8 | 26.8 | 26.0 |
| Average night temperature (°C) | 21.5 | 21.4 | 21.7 | 21.4 | 21.2 | 18.6 | 19.8 | 21.1 | 22.7 | 23.3 | 23.0 | 22.8 |
| Absolute minimum temperature (°C) | 17.9 | 19.3 | 20.4 | 19.3 | 18.4 | 10.1 | 15.7 | 17.6 | 20.5 | 21.8 | 18.9 | 21.0 |
| 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) | 12.7 | 12.5 | 12.2 | 11.8 | 11.6 | 11.5 | 11.5 | 11.7 | 12.0 | 12.4 | 12.6 | 12.8 |
| 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) | 8.6 | 7.5 | 7.9 | 8.2 | 8.2 | 9.8 | 10.4 | 10.3 | 10.4 | 10.3 | 9.6 | 8.9 |
| Precipitation (mm) | 247 | 259 | 321 | 182 | 196 | 37 | 3 | 57 | 86 | 71 | 138 | 199 |
| Sunny days | 2 | 1 | 0 | 1 | 4 | 9 | 24 | 22 | 7 | 13 | 8 | 2 |
| Rainy days | 29 | 27 | 31 | 29 | 27 | 21 | 7 | 9 | 23 | 18 | 22 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Unión is at