Average annual temperature is 17.4 °C
Absolute maximum temperature: 25.6 °C
Absolute minimum temperature: 9.5 °C
Number of sunny days: 42 days
Number of rainy days: 323 days
Look at detailed online map of San Gerónimo
* Weather data for San Gerónimo 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) | 22.8 | 21.8 | 22.4 | 22.2 | 22.7 | 22.8 | 23.5 | 25.6 | 25.3 | 24.8 | 25.0 | 23.2 |
| Average daytime temperature (°C) | 20.7 | 20.4 | 20.9 | 21.0 | 21.2 | 21.0 | 21.7 | 23.0 | 23.8 | 22.7 | 22.5 | 21.9 |
| Average temperature (°C) | 16.7 | 16.8 | 17.1 | 17.0 | 17.4 | 16.5 | 16.8 | 17.5 | 18.4 | 17.9 | 18.2 | 18.0 |
| Average night temperature (°C) | 13.2 | 13.9 | 13.7 | 13.6 | 14.2 | 12.6 | 12.6 | 12.4 | 13.7 | 13.9 | 14.0 | 14.6 |
| Absolute minimum temperature (°C) | 10.8 | 11.9 | 11.2 | 11.5 | 12.0 | 10.6 | 9.5 | 10.5 | 11.5 | 12.3 | 12.0 | 11.6 |
| 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 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.4 | 12.3 | 12.1 | 12.0 | 11.8 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.5 |
| 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) | 9.7 | 9.4 | 8.7 | 9.4 | 10.5 | 10.7 | 10.7 | 10.8 | 11.0 | 10.4 | 10.2 | 9.3 |
| Precipitation (mm) | 116 | 186 | 213 | 103 | 74 | 20 | 49 | 21 | 46 | 158 | 109 | 208 |
| Sunny days | 4 | 0 | 2 | 1 | 1 | 13 | 6 | 8 | 1 | 1 | 5 | 0 |
| Rainy days | 27 | 28 | 29 | 29 | 30 | 17 | 25 | 23 | 29 | 30 | 25 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Gerónimo is at