Average annual temperature is 19.3 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 237 days
Number of rainy days: 128 days
Look at detailed online map of Colonia 18 de Diciembre
* Weather data for Colonia 18 de Diciembre 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) | 26.9 | 31.5 | 33.0 | 34.0 | 33.2 | 36.1 | 31.3 | 30.8 | 33.0 | 31.1 | 30.2 | 23.8 |
| Average daytime temperature (°C) | 24.2 | 26.6 | 29.1 | 30.5 | 29.9 | 33.5 | 28.9 | 28.0 | 29.9 | 26.7 | 25.5 | 21.0 |
| Average temperature (°C) | 15.1 | 16.7 | 19.9 | 21.6 | 21.4 | 24.5 | 20.9 | 20.2 | 21.5 | 19.1 | 16.8 | 13.6 |
| Average night temperature (°C) | 7.1 | 8.4 | 11.1 | 13.0 | 13.4 | 15.5 | 14.5 | 14.3 | 14.2 | 13.4 | 10.1 | 8.5 |
| Absolute minimum temperature (°C) | 3.9 | 3.5 | 3.9 | 9.7 | 11.0 | 14.0 | 11.6 | 12.3 | 12.3 | 8.7 | 5.7 | 3.6 |
| 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 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 10.1 | 10.4 | 11.0 | 11.5 | 11.6 | 12.4 | 11.8 | 10.6 | 11.2 | 9.5 | 9.7 | 8.1 |
| Precipitation (mm) | 1 | 1 | 9 | 1 | 25 | 12 | 118 | 109 | 34 | 77 | 22 | 58 |
| Sunny days | 28 | 27 | 24 | 25 | 13 | 26 | 12 | 8 | 20 | 19 | 21 | 14 |
| Rainy days | 3 | 1 | 7 | 5 | 18 | 4 | 19 | 23 | 10 | 12 | 9 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Colonia 18 de Diciembre is at