Sint Maarten weather in September 2025
Sint Maarten weather in September 2025
Day
31 °C
Night
25 °C
Sea
29 °C
Precipitation
111 mm
in month
Rainy days
13 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
77 %
Day
31 °C
Night
25 °C
Sea
29 °C
Precipitation
111 mm
in month
Rainy days
13 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
77 %
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Weather overview and FAQs
Weather overview
In Sint Maarten in September, the average air temperature ranges from 31 °C (88 °F) during the day to 25 °C (77 °F) at night. There are 13 days of rain on average, where the rainfall is 111 mm (4.36 in).
Is September a good month to visit Sint Maarten?
September is one of the best months to visit Sint Maarten. The temperature during the day will be nice 31 °C (88 °F). The seawater temperature reaches ideal 29 °C (83 °F). At night, temperatures hover around a pleasant 25 °C (77 °F).
What temperature can I expect during the day in September in Sint Maarten?
In September in Sint Maarten, the average daily temperatures will be 31 °C (88 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.
What is the sea temperature in Sint Maarten in September?
The temperature of the sea in Sint Maarten in September is 29 °C (83 °F). This temperature is someone's dream come true, while for someone it may no longer be ideal for the purpose of refreshment.
What is the average number of rainy days in Sint Maarten in September?
In Sint Maarten in September, we can expect 13 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.9 days of the week, or in general - 42 % days.
What is the night temperature in September in Sint Maarten?
The average night temperature in Sint Maarten in September is 25 °C (77 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
How heavy is the precipitation in Sint Maarten in September?
In September in Sint Maarten, there is 111 mm (4.36 in) rainfall, which means on average 4 mm (0.15 in) rainfall per day.
Is there a wet season in Sint Maarten in September?
No, there is no wet season in September in Sint Maarten - you can expect 13 days of rain during the month.
How many hours of sun to expect in Sint Maarten in September?
In September in Sint Maarten, you can expect around 8 hours of sunshine.
Is it hot in Sint Maarten in September?
In September in Sint Maarten, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How long is the day (from dawn till dusk) in Sint Maarten in September?
The length of daylight in Sint Maarten in September is 12 hours.
What is the humidity in Sint Maarten in September?
In Sint Maarten in September, expect humidity around 77 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
How windy is Sint Maarten in September?
An average wind scale that can be expected in Sint Maarten in September is 5.
Is the weather in Sint Maarten warmer in September than in August?
No, September is not warmer in Sint Maarten than August.
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