Santo Domingo weather in September 2025

Q: How hot is it in Santo Domingo in September?

Daytime temperatures usually reach 32°C in Santo Domingo in September with very high heat and humidity, falling to 22°C at night.

Q: How sunny is it in Santo Domingo in September?

There are normally 8 hours of bright sunshine each day in Santo Domingo in September - that's 61% of daylight hours.

Q: How warm is the sea around Santo Domingo in September?

The average sea temperature around Santo Domingo in September is 29°C.

Q: Does it rain in Santo Domingo in September?

There are usually 14 days with some rain in Santo Domingo in September and the average monthly rainfall is 174mm.

Q: What is the chance of a cyclone in Santo Domingo in September?

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

Expect daytime maximum temperatures of 90°F in Santo Domingo, Dominican Republic in September and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 14 days with some rainfall and typically 6.9 inches of rainfall in the month.

90
90°F max day temperature
8
8 hours of sunshine per day
14
14 days with some rainfall
72
72°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
6.9
6.9 inches of monthly rainfall
11
11+ (Extreme) UV index
84
84°F sea temperature

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The September weather guide for Dominican Republic (Santo Domingo) 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 the Dominican Republic

How hot is it in Santo Domingo in September?

Daytime temperatures usually reach 90°F in Santo Domingo in September with very high heat and humidity, falling to 72°F at night.

How sunny is it in Santo Domingo in September?

There are normally 8 hours of bright sunshine each day in Santo Domingo in September - that's 61% of daylight hours.

How warm is the sea around Santo Domingo in September?

The average sea temperature around Santo Domingo in September is 84°F.

Does it rain in Santo Domingo in September?

There are usually 14 days with some rain in Santo Domingo in September and the average monthly rainfall is 6.9 inches.

What is the chance of a hurricane in Santo Domingo in September?

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

Santo Domingo September sunrise & sunset times

Browse the sunrise and sunset times for Santo Domingo in September 2025. Select a month to view Santo Domingo 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	06:25	18:54
Monday, 15th September 2025	06:27	18:42
Tuesday, 30th September 2025	06:30	18:29

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Dominican Republic - quick facts
Flight time^✝	9 hours
Time difference	UK -4 hours
Language(s)	Spanish
Currency	Dominican Peso
Electricity	A + B + C plug (120V)
Driving side	Right
Why visit?	Beaches Nature Nightlife
Tourist info	Dominican Republic Tourist Board