Average annual temperature is 4.0 °C
Absolute maximum temperature: 16.9 °C
Absolute minimum temperature: -8.7 °C
Number of sunny days: 106 days
Number of rainy days: 257 days
Number of snow days: 2 days
Look at detailed online map of San Juan Bautista de Chajana
* Weather data for San Juan Bautista de Chajana 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) | 13.2 | 12.9 | 13.6 | 13.0 | 12.9 | 11.5 | 14.1 | 15.7 | 15.4 | 16.9 | 16.2 | 14.8 |
| Average daytime temperature (°C) | 11.1 | 10.7 | 10.5 | 11.0 | 10.2 | 10.5 | 12.3 | 12.1 | 13.0 | 14.0 | 13.1 | 12.4 |
| Average temperature (°C) | 4.5 | 4.7 | 4.2 | 3.6 | 3.0 | 1.9 | 2.8 | 2.9 | 3.7 | 5.6 | 5.5 | 5.4 |
| Average night temperature (°C) | -1.4 | -0.5 | -1.7 | -2.8 | -3.4 | -5.5 | -4.8 | -4.8 | -4.0 | -2.0 | -0.9 | -0.7 |
| Absolute minimum temperature (°C) | -4.7 | -3.8 | -4.8 | -5.8 | -6.7 | -7.9 | -7.8 | -8.7 | -8.1 | -4.7 | -4.5 | -5.3 |
| 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) | 10.2 | 9.8 | 10.1 | 10.1 | 10.1 | 10.5 | 10.5 | 10.7 | 10.8 | 10.9 | 10.2 | 9.6 |
| Precipitation (mm) | 98 | 127 | 123 | 44 | 48 | 0 | 11 | 21 | 41 | 63 | 152 | 181 |
| Sunny days | 4 | 0 | 0 | 4 | 10 | 30 | 24 | 18 | 12 | 2 | 1 | 1 |
| Rainy days | 27 | 28 | 31 | 26 | 21 | 0 | 7 | 11 | 18 | 29 | 29 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Juan Bautista de Chajana is at