Average annual temperature is 12.4 °C
Absolute maximum temperature: 25.5 °C
Absolute minimum temperature: -0.1 °C
Number of sunny days: 88 days
Number of rainy days: 277 days
Look at detailed online map of Primero de Septiembre
* Weather data for Primero de Septiembre 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) | 20.6 | 22.8 | 24.5 | 24.8 | 23.0 | 25.5 | 20.8 | 21.7 | 19.8 | 20.9 | 23.2 | 19.3 |
| Average daytime temperature (°C) | 16.4 | 18.2 | 19.7 | 19.5 | 19.9 | 21.5 | 18.3 | 18.3 | 18.4 | 17.0 | 16.0 | 13.6 |
| Average temperature (°C) | 10.3 | 11.1 | 13.0 | 13.6 | 14.1 | 15.6 | 13.3 | 13.2 | 13.0 | 12.2 | 11.0 | 8.8 |
| Average night temperature (°C) | 5.9 | 6.2 | 8.4 | 9.7 | 9.8 | 10.7 | 9.5 | 9.6 | 9.1 | 9.3 | 7.9 | 5.7 |
| Absolute minimum temperature (°C) | -0.1 | 1.3 | 2.7 | 6.9 | 7.1 | 7.4 | 7.6 | 6.8 | 6.9 | 6.1 | 2.9 | 0.7 |
| 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 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 9.8 | 9.9 | 10.3 | 10.9 | 11.6 | 12.1 | 11.1 | 10.6 | 11.3 | 8.3 | 7.4 | 6.6 |
| Precipitation (mm) | 25 | 13 | 41 | 82 | 70 | 38 | 114 | 147 | 52 | 191 | 46 | 68 |
| Sunny days | 16 | 19 | 11 | 2 | 1 | 12 | 0 | 0 | 4 | 2 | 13 | 8 |
| Rainy days | 15 | 9 | 20 | 28 | 30 | 18 | 31 | 31 | 26 | 29 | 17 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Primero de Septiembre is at