Fort-de-France weather in September 2025

Q: How hot is it in Fort-de-France in September?

Daytime temperatures usually reach 30°C in Fort-de-France in September with high heat and humidity, falling to 24°C at night.

Q: How sunny is it in Fort-de-France in September?

There are normally 7 hours of bright sunshine each day in Fort-de-France in September - that's 61% of daylight hours.

Q: How warm is the sea around Fort-de-France in September?

The average sea temperature around Fort-de-France in September is 29°C.

Q: Does it rain in Fort-de-France in September?

There are usually 28 days with some rain in Fort-de-France in September and the average monthly rainfall is 233mm.

Q: What is the chance of a cyclone in Fort-de-France in September?

On average 1.2 days in September in Fort-de-France are likely to be affected by the passage of one or more tropical storms.

Expect daytime maximum temperatures of 86°F in Fort-de-France, Martinique in September and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 28 days with some rainfall and typically 9.2 inches of rainfall in the month.

86
86°F max day temperature
7
7 hours of sunshine per day
28
28 days with some rainfall
75
75°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
9.2
9.2 inches of monthly rainfall
11
11+ (Extreme) UV index
84
84°F sea temperature

More about Fort-de-France

Fort-de-France by month

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

Recommended for Martinique

KLM: Low fares on long haul from £358 return

Sale

Save on return flights to worldwide destinations
Book flights to Abu Dhabi, Jo'burg, Tokyo & more
Plus more flights to the Americas, Middle East & Europe

Go to KLM deal >>

View all KLM offers

The September weather guide for Martinique (Fort-de-France) 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)

How hot is it in Fort-de-France in September?

Daytime temperatures usually reach 86°F in Fort-de-France in September with high heat and humidity, falling to 75°F at night.

How sunny is it in Fort-de-France in September?

There are normally 7 hours of bright sunshine each day in Fort-de-France in September - that's 61% of daylight hours.

How warm is the sea around Fort-de-France in September?

The average sea temperature around Fort-de-France in September is 84°F.

Does it rain in Fort-de-France in September?

There are usually 28 days with some rain in Fort-de-France in September and the average monthly rainfall is 9.2 inches.

What is the chance of a hurricane in Fort-de-France in September?

On average 1.2 days in September in Fort-de-France are likely to be affected by the passage of one or more tropical storms.

Fort-de-France September sunrise & sunset times

Browse the sunrise and sunset times for Fort-de-France in September 2025. Select a month to view Fort-de-France 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	18:16
Monday, 15th September 2025	05:53	18:05
Tuesday, 30th September 2025	05:54	17:54

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Martinique - quick facts
Time difference	UK -4 hours
Language(s)	French, Antillean Creole
Currency	Euro
Electricity	C + E plug (230V)
Driving side	Right
Why visit?	Beaches Nature
Tourist info	Martinique Tourism Board