Average annual temperature is 8.0 °C
Absolute maximum temperature: 19.5 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 101 days
Number of rainy days: 264 days
Look at detailed online map of San Marcelo
* Weather data for San Marcelo 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) | 17.6 | 16.4 | 15.6 | 15.7 | 15.8 | 14.9 | 17.5 | 19.2 | 17.6 | 19.1 | 19.5 | 18.2 |
| Average daytime temperature (°C) | 14.1 | 13.4 | 13.6 | 13.7 | 13.3 | 13.8 | 15.4 | 15.9 | 15.7 | 16.9 | 17.0 | 16.1 |
| Average temperature (°C) | 8.0 | 8.2 | 8.3 | 7.4 | 6.6 | 6.1 | 7.4 | 7.6 | 8.2 | 9.4 | 9.4 | 9.8 |
| Average night temperature (°C) | 3.3 | 4.5 | 4.3 | 2.1 | 1.1 | -0.7 | 0.2 | 0.4 | 1.9 | 3.6 | 3.2 | 5.1 |
| Absolute minimum temperature (°C) | -1.0 | 1.0 | 1.2 | -0.9 | -2.2 | -3.1 | -2.5 | -2.7 | -1.9 | 0.0 | -0.6 | 0.7 |
| 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 | 11.5 | 11.3 | 11.4 | 11.6 | 12.0 | 12.4 | 12.8 | 12.9 |
| 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) | 9.7 | 8.9 | 9.4 | 10.0 | 10.2 | 10.5 | 10.5 | 10.8 | 10.8 | 10.8 | 10.4 | 9.9 |
| Precipitation (mm) | 245 | 330 | 217 | 79 | 64 | 0 | 13 | 26 | 82 | 102 | 138 | 217 |
| Sunny days | 1 | 0 | 0 | 4 | 11 | 27 | 26 | 17 | 6 | 4 | 4 | 1 |
| Rainy days | 30 | 28 | 31 | 26 | 20 | 3 | 5 | 14 | 24 | 27 | 26 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Marcelo is at