Average annual temperature is 18.3 °C
Absolute maximum temperature: 26.9 °C
Absolute minimum temperature: 11.9 °C
Number of sunny days: 31 days
Number of rainy days: 334 days
Look at detailed online map of Santo Tomás
* Weather data for Santo Tomás 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) | 23.5 | 22.4 | 24.7 | 22.9 | 22.9 | 22.0 | 23.8 | 25.8 | 26.8 | 26.9 | 26.5 | 24.7 |
| Average daytime temperature (°C) | 21.2 | 20.6 | 21.5 | 21.1 | 21.2 | 20.6 | 21.7 | 23.0 | 24.1 | 23.8 | 23.6 | 22.5 |
| Average temperature (°C) | 17.5 | 17.5 | 17.8 | 17.8 | 18.1 | 17.4 | 17.9 | 18.6 | 19.4 | 19.5 | 19.3 | 18.9 |
| Average night temperature (°C) | 14.6 | 15.3 | 15.0 | 15.5 | 15.8 | 15.1 | 15.1 | 15.3 | 15.8 | 16.1 | 16.0 | 16.3 |
| Absolute minimum temperature (°C) | 13.0 | 13.8 | 11.9 | 14.2 | 15.2 | 13.4 | 14.2 | 14.4 | 14.5 | 15.3 | 13.8 | 15.0 |
| 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) | 9.3 | 8.5 | 8.8 | 9.3 | 10.1 | 10.4 | 10.6 | 10.8 | 11.0 | 10.6 | 10.4 | 9.4 |
| Precipitation (mm) | 214 | 187 | 341 | 251 | 141 | 55 | 61 | 45 | 48 | 184 | 125 | 258 |
| Sunny days | 4 | 0 | 1 | 0 | 0 | 2 | 3 | 9 | 3 | 2 | 7 | 0 |
| Rainy days | 27 | 28 | 30 | 30 | 31 | 28 | 28 | 22 | 27 | 29 | 23 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Santo Tomás is at