Jamaica weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Jamaica in September. Check more long-term weather averages for Jamaica in September before you book your next holiday to Jamaica in 2025/2026.

  • 31°C maximum daytime temperature in September in Jamaica (Montego Bay)31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in September in Jamaica (Montego Bay)14
    14 days with some rainfall
  • 23°C minimum night-time temperature in September in Jamaica (Montego Bay)23
    23°C min night temperature
  • 12 hours of daylight per day in September in Jamaica (Montego Bay)12
    12 hours of daylight per day
  • Very high heat & humidity in September in Jamaica (Montego Bay)VH
    Very High heat & humidity
  • 127 mm monthly rainfall in September in Jamaica (Montego Bay)127
    127 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Jamaica (Montego Bay)11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Jamaica (Montego Bay)29
    29°C sea temperature

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The September weather guide for Jamaica (Montego Bay) 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 Jamaica destinations

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

All Jamaica destinations

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

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More about Jamaica

How hot is it in Jamaica in September?

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

How sunny is it in Jamaica in September?

There are normally 7 hours of bright sunshine each day in Montego Bay, Jamaica in September - that's 54% of daylight hours.

How warm is the sea around Jamaica in September?

The average sea temperature around Montego Bay, Jamaica in September is 29°C.

Does it rain in Jamaica in September?

There are usually 14 days with some rain in Montego Bay, Jamaica in September and the average monthly rainfall is 127mm.

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

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

Jamaica September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:57 18:26
Monday, 15th September 2025 06:00 18:14
Tuesday, 30th September 2025 06:02 18:01

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