Port Antonio weather in September 2025

Q: 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.

Q: 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.

Q: How warm is the sea around Port Antonio in September?

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

Q: 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.

Q: What is the chance of a cyclone 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.

Expect 86°F 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.

86
86°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
72
72°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
8.7
8.7 inches of monthly rainfall
11
11+ (Extreme) UV index
84
84°F 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) | Imperial (°F)

More about Jamaica

How hot is it in Port Antonio in September?

Daytime temperatures usually reach 86°F in Port Antonio in September with high heat and humidity, falling to 72°F 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 84°F.

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 8.7 inches.

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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Jamaica - quick facts
Flight time^✝	10 hours
Time difference	UK -5 hours
Language(s)	English
Currency	Jamaican Dollar
Electricity	A + B plug (110V)
Driving side	Left
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Jamaica Tourist Board