Average annual temperature is 3.2 °C
Absolute maximum temperature: 14.9 °C
Absolute minimum temperature: -8.8 °C
Number of sunny days: 105 days
Number of rainy days: 235 days
Number of snow days: 25 days
Look at detailed online map of Sienja
* Weather data for Sienja 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) | 11.3 | 11.5 | 11.2 | 11.7 | 10.3 | 10.5 | 13.5 | 13.9 | 13.1 | 14.9 | 13.4 | 13.4 |
| Average daytime temperature (°C) | 8.3 | 7.1 | 7.8 | 9.3 | 7.9 | 8.8 | 11.0 | 10.4 | 11.6 | 12.1 | 11.2 | 11.1 |
| Average temperature (°C) | 2.6 | 2.3 | 2.7 | 3.0 | 1.8 | 1.7 | 3.2 | 2.8 | 3.9 | 4.7 | 4.4 | 4.8 |
| Average night temperature (°C) | -2.3 | -1.6 | -1.5 | -2.6 | -3.4 | -4.2 | -3.3 | -3.8 | -2.8 | -1.3 | -1.3 | -0.1 |
| Absolute minimum temperature (°C) | -7.2 | -6.1 | -4.5 | -5.6 | -8.8 | -6.1 | -6.9 | -5.6 | -5.9 | -5.5 | -3.8 | -2.4 |
| 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 | 13.0 |
| Daylight mean duration (h) | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.3 | 11.3 | 11.6 | 12.0 | 12.4 | 12.8 | 13.0 |
| 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) | 10.1 | 9.3 | 9.6 | 10.3 | 10.1 | 10.5 | 10.4 | 10.7 | 10.7 | 10.8 | 10.0 | 9.7 |
| Precipitation (mm) | 220 | 200 | 209 | 45 | 24 | 0 | 7 | 15 | 33 | 92 | 148 | 249 |
| Sunny days | 1 | 0 | 0 | 6 | 14 | 30 | 27 | 13 | 10 | 3 | 1 | 0 |
| Rainy days | 30 | 26 | 31 | 22 | 12 | 0 | 1 | 6 | 19 | 28 | 29 | 31 |
| Snow days | 0 | 2 | 0 | 2 | 5 | 0 | 3 | 12 | 1 | 0 | 0 | 0 |
The largest precipitation sum in Sienja is at