Average annual temperature is 4.5 °C
Absolute maximum temperature: 16.3 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 68 days
Number of rainy days: 292 days
Number of snow days: 5 days
Look at detailed online map of San Mateo
* Weather data for San Mateo 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) | 11.1 | 11.4 | 13.2 | 12.1 | 12.9 | 12.9 | 14.5 | 16.3 | 14.3 | 13.9 | 13.4 | 13.9 |
| Average daytime temperature (°C) | 9.3 | 9.8 | 9.4 | 10.5 | 10.4 | 11.2 | 13.1 | 13.4 | 11.8 | 11.7 | 11.5 | 11.7 |
| Average temperature (°C) | 3.5 | 4.5 | 4.2 | 4.1 | 3.8 | 3.3 | 4.8 | 5.0 | 4.6 | 5.0 | 5.0 | 5.5 |
| Average night temperature (°C) | -1.2 | 0.4 | -0.1 | -1.2 | -1.5 | -2.7 | -1.7 | -1.6 | -1.0 | -0.4 | 0.2 | 1.0 |
| Absolute minimum temperature (°C) | -5.3 | -5.4 | -3.9 | -3.7 | -5.2 | -4.0 | -2.9 | -2.7 | -3.3 | -2.7 | -3.1 | -1.5 |
| 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) | 12.7 | 12.5 | 12.2 | 11.8 | 11.6 | 11.4 | 11.5 | 11.7 | 12.0 | 12.4 | 12.7 | 12.8 |
| 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) | 8.7 | 8.5 | 8.7 | 10.0 | 10.3 | 10.6 | 10.7 | 10.8 | 10.8 | 10.1 | 9.0 | 9.1 |
| Precipitation (mm) | 173 | 211 | 211 | 123 | 34 | 9 | 4 | 18 | 121 | 198 | 229 | 288 |
| Sunny days | 0 | 0 | 0 | 0 | 9 | 18 | 25 | 15 | 0 | 1 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 21 | 9 | 6 | 15 | 30 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Mateo is at