Mexico City Weather in September: Climate, Temperature & Travel Tips
Avg 16.6°C · 202mm rain — September is autumn in Mexico City.
- Avg high
- 21.9 °C
- Avg low
- 12.7 °C
- Avg
- 16.6 °C
- Precipitation
- 202 mm
Source: Open-Meteo Archive 2014–2023 · 10-year climate normals
Climate Overview
September in Mexico City, Mexico brings autumn conditions: average temperature 16.6°C, average high 21.9°C, average low 12.7°C. Monthly rainfall averages 202mm, making it a wet time of year.
Conditions are pleasant for most travel activities.
What to Pack
- Light layers (long sleeves + light jacket for evenings)
- Comfortable walking shoes
- Compact umbrella and waterproof jacket
Best Things to Do
- Walking tours and city exploration
- Parks and outdoor cafes
- Seasonal food and night markets (where applicable)
Pros and Cons of Visiting in September
Pros:
- Pleasant temperatures for walking and outdoor sightseeing
- Shoulder season often means smaller crowds and lower prices
Cons:
- Frequent rain — pack waterproof gear
Climate source: Open-Meteo Archive (2014–2023).
Colour = avg temperature · blue = cool · orange = warm
- 1 May 19.2°C
- 2 April 19.0°C
- 3 June 18.1°C
- 1 January 13.7°C
- 2 December 14.1°C
- 3 November 15.2°C
FAQ
01 What is the average temperature in Mexico City in September? +
The average is 16.6°C, with a high of 22°C and a low of 13°C.
02 What is Mexico City like to visit in September? +
It is autumn in Mexico City, which is ideal for outdoor exploration.
03 Does it rain often in Mexico City during September? +
Average rainfall is 202mm, which is high — expect frequent rain.
04 What should I pack for Mexico City in September? +
Light layers (long sleeves + light jacket for evenings); Comfortable walking shoes.
05 Is September a peak travel season for Mexico City? +
It is closer to off-season, with more reasonable prices and fewer crowds.
06 Where does this climate data come from? +
Monthly averages computed from Open-Meteo Archive 2014–2023 daily observations.
- Sources
- Open-Meteo Archive 2014-2023
- Updated
- 2026-04-17