Mexico weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Mexico in September. Check more long-term weather averages for Mexico in September before you book your next holiday to Mexico in 2025/2026.

  • 23°C maximum daytime temperature in September in Mexico (Mexico City)23
    23°C max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in September in Mexico (Mexico City)16
    16 days with some rainfall
  • 11°C minimum night-time temperature in September in Mexico (Mexico City)11
    11°C min night temperature
  • 12 hours of daylight per day in September in Mexico (Mexico City)12
    12 hours of daylight per day
  • No heat & humidity in September in Mexico (Mexico City)0
    No heat & humidity
  • 109 mm monthly rainfall in September in Mexico (Mexico City)109
    109 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Mexico (Mexico City)11
    11+ (Extreme) UV index

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The September weather guide for Mexico (Mexico City) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Mexico destinations

Below are average maximum temperatures at popular countries, regions and places in Mexico in September. Select a holiday destination to see more weather parameters.

All Mexico regions

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Mexico

How hot is it in Mexico in September?

Daytime temperatures usually reach 23°C in Mexico City, Mexico in September, falling to 11°C at night.

How sunny is it in Mexico in September?

There are normally 4 hours of bright sunshine each day in Mexico City, Mexico in September - that's 35% of daylight hours.

Does it rain in Mexico in September?

There are usually 16 days with some rain in Mexico City, Mexico in September and the average monthly rainfall is 109mm.

What is the chance of a hurricane in Mexico in September?

On average less than 1 day in September in Mexico City, Mexico is likely to be affected by the passage of one or more tropical storms.

Mexico September sunrise & sunset times

Browse the sunrise and sunset times for Mexico in September 2025. Select a month to view Mexico sunrise and sunset times for the next 12 months. The Mexico sunrise and sunset times shown below are for Mexico City.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:21 18:51
Monday, 15th September 2025 06:24 18:39
Tuesday, 30th September 2025 06:27 18:25

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