Average annual temperature is 22.5 °C
Absolute maximum temperature: 43.7 °C
Absolute minimum temperature: 0.6 °C
Number of sunny days: 275 days
Number of rainy days: 89 days
Number of snow days: 1 day
Look at detailed online map of Santa Tecla
* Weather data for Santa Tecla 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) | 27.5 | 33.5 | 34.4 | 35.7 | 37.0 | 43.7 | 39.3 | 39.9 | 38.0 | 33.0 | 33.3 | 26.7 |
| Average daytime temperature (°C) | 22.8 | 24.3 | 28.8 | 30.4 | 31.8 | 38.2 | 35.5 | 35.8 | 34.8 | 26.5 | 21.9 | 20.7 |
| Average temperature (°C) | 15.7 | 16.1 | 20.3 | 22.4 | 25.0 | 31.3 | 29.8 | 29.9 | 28.7 | 20.9 | 15.6 | 14.4 |
| Average night temperature (°C) | 9.4 | 9.8 | 13.8 | 16.1 | 19.0 | 24.6 | 24.3 | 24.4 | 22.8 | 16.7 | 11.4 | 9.5 |
| Absolute minimum temperature (°C) | 3.0 | 1.7 | 0.6 | 10.6 | 15.8 | 19.4 | 21.9 | 21.0 | 19.7 | 4.7 | 5.2 | 2.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.5 | 13.8 | 13.6 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.5 | 9.8 | 10.1 | 11.0 | 11.2 | 12.6 | 12.1 | 11.8 | 11.4 | 8.1 | 7.7 | 8.5 |
| Precipitation (mm) | 0 | 0 | 18 | 10 | 28 | 5 | 29 | 12 | 10 | 78 | 21 | 8 |
| Sunny days | 31 | 26 | 27 | 26 | 16 | 22 | 20 | 23 | 24 | 11 | 22 | 27 |
| Rainy days | 0 | 1 | 4 | 4 | 15 | 8 | 11 | 8 | 6 | 20 | 8 | 4 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Santa Tecla is at