Chetumal weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Chetumal in September. Check more long-term weather averages for Chetumal in September before you book your next holiday to Mexico in 2025/2026.

  • 31°C maximum daytime temperature in September in Chetumal31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in September in Chetumal14
    14 days with some rainfall
  • 23°C minimum night-time temperature in September in Chetumal23
    23°C min night temperature
  • 12 hours of daylight per day in September in Chetumal12
    12 hours of daylight per day
  • Very high heat & humidity in September in ChetumalVH
    Very High heat & humidity
  • 184 mm monthly rainfall in September in Chetumal184
    184 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Chetumal11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Chetumal29
    29°C sea temperature

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The September weather guide for Mexico (Chetumal) 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.

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

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How hot is it in Chetumal in September?

Daytime temperatures usually reach 31°C in Chetumal in September with very high heat and humidity, falling to 23°C at night.

How sunny is it in Chetumal in September?

There are normally 6 hours of bright sunshine each day in Chetumal in September - that's 49% of daylight hours.

How warm is the sea around Chetumal in September?

The average sea temperature around Chetumal in September is 29°C.

Does it rain in Chetumal in September?

There are usually 14 days with some rain in Chetumal in September and the average monthly rainfall is 184mm.

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

On average 1.3 days in September in Chetumal are likely to be affected by the passage of one or more tropical storms.

Chetumal September sunrise & sunset times

Browse the sunrise and sunset times for Chetumal in September 2025. Select a month to view Chetumal sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:39 18:07
Monday, 15th September 2025 05:41 17:55
Tuesday, 30th September 2025 05:44 17:42

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