Average annual temperature is 19.0 °C
Absolute maximum temperature: 31.8 °C
Absolute minimum temperature: 6.1 °C
Number of sunny days: 95 days
Number of rainy days: 270 days
Look at detailed online map of Santo Tomás
* Weather data for Santo Tomás Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 24.6 | 27.1 | 28.6 | 29.0 | 31.8 | 30.5 | 26.6 | 26.7 | 25.3 | 24.8 | 24.3 | 25.1 |
| Average daytime temperature (°C) | 22.6 | 24.3 | 25.6 | 27.1 | 26.8 | 25.8 | 24.4 | 24.0 | 23.4 | 22.6 | 22.1 | 21.6 |
| Average temperature (°C) | 17.3 | 18.3 | 19.6 | 20.6 | 20.7 | 20.6 | 19.6 | 19.3 | 18.9 | 18.5 | 17.9 | 16.7 |
| Average night temperature (°C) | 12.6 | 13.6 | 14.5 | 15.3 | 15.9 | 16.2 | 16.1 | 15.7 | 15.4 | 15.4 | 14.6 | 12.9 |
| Absolute minimum temperature (°C) | 9.9 | 10.5 | 12.1 | 13.1 | 14.5 | 14.9 | 13.9 | 13.7 | 14.2 | 13.1 | 11.6 | 6.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.5 | 10.7 | 11.1 | 11.6 | 11.4 | 11.3 | 10.3 | 10.1 | 10.3 | 10.2 | 9.4 | 9.9 |
| Precipitation (mm) | 18 | 5 | 65 | 93 | 156 | 275 | 346 | 280 | 463 | 354 | 83 | 38 |
| Sunny days | 19 | 21 | 11 | 8 | 6 | 1 | 7 | 1 | 0 | 1 | 4 | 16 |
| Rainy days | 12 | 7 | 20 | 22 | 25 | 29 | 24 | 30 | 30 | 30 | 26 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Santo Tomás is at