Average annual temperature is 18.7 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: 1.6 °C
Number of sunny days: 120 days
Number of rainy days: 245 days
Look at detailed online map of Chalco
* Weather data for Chalco 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) | 29.2 | 30.3 | 34.3 | 29.2 | 29.8 | 31.8 | 28.5 | 30.3 | 30.7 | 29.9 | 31.6 | 28.1 |
| Average daytime temperature (°C) | 21.1 | 20.6 | 24.0 | 23.9 | 25.6 | 28.2 | 26.8 | 27.0 | 28.4 | 23.6 | 19.7 | 18.4 |
| Average temperature (°C) | 14.8 | 14.2 | 17.5 | 19.0 | 20.9 | 22.9 | 21.9 | 21.8 | 22.7 | 19.0 | 15.4 | 14.4 |
| Average night temperature (°C) | 10.2 | 9.2 | 12.5 | 15.1 | 16.5 | 17.5 | 17.2 | 17.0 | 16.5 | 15.5 | 11.9 | 11.3 |
| Absolute minimum temperature (°C) | 2.0 | 1.6 | 6.8 | 10.3 | 10.4 | 13.6 | 14.3 | 15.5 | 14.5 | 8.2 | 6.7 | 7.3 |
| 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 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 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) | 8.4 | 8.8 | 9.2 | 7.9 | 10.1 | 11.2 | 11.5 | 10.7 | 11.2 | 7.5 | 6.3 | 5.6 |
| Precipitation (mm) | 35 | 44 | 73 | 247 | 110 | 61 | 110 | 132 | 35 | 293 | 117 | 131 |
| Sunny days | 14 | 19 | 19 | 7 | 6 | 13 | 3 | 4 | 10 | 6 | 10 | 9 |
| Rainy days | 17 | 9 | 12 | 23 | 25 | 17 | 28 | 27 | 20 | 25 | 20 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Chalco during the most sunny months:
The largest precipitation sum in Chalco is at