Belize City weather in September 2025

Expect daytime maximum temperatures of 31°C in Belize City, Belize in September and very high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 256 mm of rainfall in the month.

  • 31°C maximum daytime temperature in September in Belize City31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in September in Belize City18
    18 days with some rainfall
  • 24°C minimum night-time temperature in September in Belize City24
    24°C min night temperature
  • 12 hours of daylight per day in September in Belize City12
    12 hours of daylight per day
  • Very high heat & humidity in September in Belize CityVH
    Very High heat & humidity
  • 256 mm monthly rainfall in September in Belize City256
    256 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Belize City11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Belize City29
    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.

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

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More about Belize

How hot is it in Belize City in September?

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

How sunny is it in Belize City in September?

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

How warm is the sea around Belize City in September?

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

Does it rain in Belize City in September?

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

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

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

Belize City September sunrise & sunset times

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

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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