The temperatures in Mexico City in September are comfortable with low of 12°C and and high up to 22°C.
There’s going to be many days of rain during the month of September in Mexico City.
Mexico City should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Mexico City in September 2025.
If you’re planning to visit Mexico City in the near future, we highly recommend that you review the 14 day weather forecast for Mexico City before you arrive.
Temperatures
22° / 12°
Rainy Days
18
Snowy Days
0
Dry Days
12
Rainfall
420
mm
Sun Hours
11.2
Hrs
