Average annual temperature is 5.5 °C
Absolute maximum temperature: 16.3 °C
Absolute minimum temperature: -5.6 °C
Number of sunny days: 100 days
Number of rainy days: 257 days
Number of snow days: 8 days
Look at detailed online map of Isco
* Weather data for Isco 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) | 13.0 | 13.2 | 13.4 | 14.1 | 12.3 | 14.0 | 16.1 | 16.3 | 14.8 | 15.9 | 14.8 | 14.9 |
| Average daytime temperature (°C) | 10.9 | 10.5 | 10.6 | 11.4 | 10.5 | 11.9 | 13.3 | 13.0 | 13.1 | 13.1 | 13.0 | 12.9 |
| Average temperature (°C) | 5.0 | 5.5 | 5.5 | 5.2 | 4.4 | 4.8 | 5.6 | 5.4 | 5.7 | 6.2 | 6.0 | 6.9 |
| Average night temperature (°C) | 0.5 | 2.2 | 1.7 | 0.2 | -0.7 | -1.0 | -0.7 | -0.7 | -0.3 | 0.9 | 0.3 | 2.3 |
| Absolute minimum temperature (°C) | -5.6 | -0.8 | -1.1 | -2.4 | -3.5 | -3.0 | -3.0 | -3.1 | -3.0 | -3.1 | -3.5 | -0.5 |
| 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) | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.3 | 11.4 | 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) | 9.0 | 8.4 | 8.8 | 10.0 | 10.1 | 10.4 | 10.5 | 10.7 | 10.5 | 10.2 | 10.3 | 9.6 |
| Precipitation (mm) | 211 | 242 | 175 | 75 | 38 | 0 | 7 | 19 | 67 | 130 | 130 | 175 |
| Sunny days | 2 | 0 | 0 | 1 | 13 | 27 | 27 | 15 | 8 | 4 | 3 | 0 |
| Rainy days | 29 | 28 | 31 | 29 | 16 | 2 | 4 | 11 | 22 | 27 | 27 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 5 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Isco is at