Average annual temperature is 9.0 °C
Absolute maximum temperature: 20.6 °C
Absolute minimum temperature: -4.5 °C
Number of sunny days: 106 days
Number of rainy days: 259 days
Look at detailed online map of Santo Tomas
* Weather data for Santo Tomas 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) | 18.3 | 16.8 | 17.2 | 17.2 | 16.2 | 16.0 | 18.0 | 19.5 | 18.8 | 20.6 | 20.0 | 19.1 |
| Average daytime temperature (°C) | 15.2 | 14.9 | 14.7 | 15.1 | 14.1 | 14.6 | 16.2 | 16.5 | 16.8 | 18.2 | 17.8 | 17.0 |
| Average temperature (°C) | 9.1 | 9.3 | 9.3 | 8.6 | 7.4 | 6.3 | 7.7 | 7.8 | 9.1 | 10.9 | 10.9 | 11.0 |
| Average night temperature (°C) | 4.4 | 5.6 | 5.6 | 2.5 | 0.7 | -2.6 | -1.2 | -1.0 | 2.2 | 4.9 | 5.5 | 6.7 |
| Absolute minimum temperature (°C) | -0.8 | 3.4 | 3.0 | -1.1 | -3.5 | -4.5 | -3.4 | -4.1 | -2.9 | 1.5 | 2.3 | 2.8 |
| 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) | 9.6 | 9.3 | 9.7 | 10.2 | 10.0 | 10.5 | 10.5 | 10.8 | 10.9 | 10.9 | 10.4 | 10.0 |
| Precipitation (mm) | 264 | 292 | 301 | 85 | 38 | 0 | 6 | 17 | 66 | 135 | 151 | 214 |
| Sunny days | 1 | 0 | 0 | 4 | 15 | 29 | 27 | 21 | 6 | 2 | 1 | 0 |
| Rainy days | 30 | 28 | 31 | 26 | 16 | 1 | 4 | 10 | 24 | 29 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Santo Tomas is at