Saint Martin weather in September 2025
Saint Martin weather in September 2025
Day
31 °C
Night
25 °C
Sea
29 °C
Precipitation
109 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
109 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 September in Saint Martin, the average air temperature ranges from 31 °C (87 °F) during the day to 25 °C (76 °F) at night. There are 13 days of rain on average, where the rainfall is 109 mm (4.28 in).
Are there good conditions to visit in Saint Martin in September?
September is one of the best months to visit Saint Martin. The daily temperatures in this month reach pleasant 31 °C (87 °F). The seawater temperature reaches ideal 29 °C (83 °F). At night, temperatures hover around a pleasant 25 °C (76 °F).
What temperature can I expect during the day in September in Saint Martin?
In September in Saint Martin, the average daily temperatures will be 31 °C (87 °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 September in Saint Martin?
In September in Saint Martin expect the sea to be warm at 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.
How many rainy days can I expect in Saint Martin in September?
There are 13 days, which are rainy in Saint Martin in September, that is, days with precipitation more than 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 air temperature in Saint Martin in September at night?
The average night temperature in Saint Martin in September is 25 °C (76 °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 many hours of sun to expect in Saint Martin in September?
There is an average length of sunshine of 8 hours per day in Saint Martin in September.
What is the rainfall intensity in September in Saint Martin?
There is precipitation of 109 mm (4.28 in) in Saint Martin in September, which means 4 mm (0.14 in) rainfall per day on average.
Is September part of the wet season in Saint Martin?
No, there is no wet season in Saint Martin in September - you can expect 13 days of rain during the month.
How long is the day (from dawn till dusk) in Saint Martin in September?
The length of daylight in Saint Martin in September is 12 hours.
Is September part of the dry season in Saint Martin?
No, September is not a dry month in Saint Martin, expect rain approximately 13 days in a month.
How windy is it in September in Saint Martin?
An average wind scale that can be expected in Saint Martin in September is 4.
Is it hot in Saint Martin in September?
In Saint Martin in September, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How humid is Saint Martin in September?
In September in Saint Martin, expect humidity around 77 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
Is the weather in Saint Martin warmer in September than in August?
No, in Saint Martin in September the temperature is not higher than in August.