Treasure Cay weather in September 2025

Q: How hot is it in Treasure Cay in September?

Daytime temperatures usually reach 30°C in Treasure Cay in September with high heat and humidity, falling to 24°C at night.

Q: How sunny is it in Treasure Cay in September?

There are normally 7 hours of bright sunshine each day in Treasure Cay in September - that's 60% of daylight hours.

Q: How warm is the sea around Treasure Cay in September?

The average sea temperature around Treasure Cay in September is 29°C.

Q: Does it rain in Treasure Cay in September?

There are usually 21 days with some rain in Treasure Cay in September and the average monthly rainfall is 195mm.

Q: What is the chance of a cyclone in Treasure Cay in September?

On average 1.2 days in September in Treasure Cay are likely to be affected by the passage of one or more tropical storms.

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Treasure Cay in September. Check more long-term weather averages for Treasure Cay in September before you book your next holiday to Bahamas in 2025/2026.

30
30°C max day temperature
7
7 hours of sunshine per day
21
21 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
195
195 mm of monthly rainfall
10
10 (Very High) UV index
29
29°C sea temperature

More about the Treasure Cay

Treasure Cay by month

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

Recommended for the Bahamas

Momondo: Best deals on hotels worldwide

Sale

Browse the best deals on hotel stays & compare prices
Check lowest rates by month & also by day of the week
Search by date or browse hotels by destination & map

Go to Momondo deal >>

View all Momondo offers

The September weather guide for Bahamas (Treasure Cay) 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)

How hot is it in Treasure Cay in September?

Daytime temperatures usually reach 30°C in Treasure Cay in September with high heat and humidity, falling to 24°C at night.

How sunny is it in Treasure Cay in September?

There are normally 7 hours of bright sunshine each day in Treasure Cay in September - that's 60% of daylight hours.

How warm is the sea around Treasure Cay in September?

The average sea temperature around Treasure Cay in September is 29°C.

Does it rain in Treasure Cay in September?

There are usually 21 days with some rain in Treasure Cay in September and the average monthly rainfall is 195mm.

What is the chance of a hurricane in Treasure Cay in September?

On average 1.2 days in September in Treasure Cay are likely to be affected by the passage of one or more tropical storms.

Treasure Cay September sunrise & sunset times

Browse the sunrise and sunset times for Treasure Cay in September 2025. Select a month to view Treasure Cay 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	05:49	18:29
Monday, 15th September 2025	05:55	18:13
Tuesday, 30th September 2025	06:01	17:56

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

Bahamas - quick facts
Flight time^✝	9.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	Bahamian Dollar
Electricity	A + B plug (120V)
Driving side	Left
Why visit?	Beaches Nature Nightlife
Tourist info	Bahamas Ministry of Tourism