Belize weather in September 2025

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

  • 31°C maximum daytime temperature in September in Belize (Belize City)31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in September in Belize (Belize City)18
    18 days with some rainfall
  • 24°C minimum night-time temperature in September in Belize (Belize City)24
    24°C min night temperature
  • 12 hours of daylight per day in September in Belize (Belize City)12
    12 hours of daylight per day
  • Very high heat & humidity in September in Belize (Belize City)VH
    Very High heat & humidity
  • 256 mm monthly rainfall in September in Belize (Belize City)256
    256 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Belize (Belize City)11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Belize (Belize City)29
    29°C sea temperature

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The September weather guide for Belize (Belize 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 Belize destinations

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

All Belize destinations

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

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More about Belize

How hot is it in Belize in September?

Daytime temperatures usually reach 31°C in Belize City, Belize in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Belize in September?

There are normally 6 hours of bright sunshine each day in Belize City, Belize in September - that's 50% of daylight hours.

How warm is the sea around Belize in September?

The average sea temperature around Belize City, Belize in September is 29°C.

Does it rain in Belize in September?

There are usually 18 days with some rain in Belize City, Belize in September and the average monthly rainfall is 256mm.

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

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

Belize September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:39 18:06
Monday, 15th September 2025 05:41 17:55
Tuesday, 30th September 2025 05:43 17:42

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