Port Antonio weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Port Antonio in September. Check more long-term weather averages for Port Antonio in September before you book your next holiday to Jamaica in 2025/2026.

  • 30°C maximum daytime temperature in September in Port Antonio30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in September in Port Antonio14
    14 days with some rainfall
  • 22°C minimum night-time temperature in September in Port Antonio22
    22°C min night temperature
  • 12 hours of daylight per day in September in Port Antonio12
    12 hours of daylight per day
  • High heat & humidity in September in Port AntonioH
    High heat & humidity
  • 220 mm monthly rainfall in September in Port Antonio220
    220 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Port Antonio11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Port Antonio29
    29°C sea temperature

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The September weather guide for Jamaica (Port Antonio) 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 Jamaica

How hot is it in Port Antonio in September?

Daytime temperatures usually reach 30°C in Port Antonio in September with high heat and humidity, falling to 22°C at night.

How sunny is it in Port Antonio in September?

There are normally 6 hours of bright sunshine each day in Port Antonio in September - that's 51% of daylight hours.

How warm is the sea around Port Antonio in September?

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

Does it rain in Port Antonio in September?

There are usually 14 days with some rain in Port Antonio in September and the average monthly rainfall is 220mm.

What is the chance of a hurricane in Port Antonio in September?

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

Port Antonio September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:52 18:20
Monday, 15th September 2025 05:54 18:08
Tuesday, 30th September 2025 05:56 17:55

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