U.S. Virgin Islands weather in September 2025
U.S. Virgin Islands weather in September 2025
Day
31 °C
Night
24 °C
Sea
29 °C
Precipitation
126 mm
in month
Rainy days
13 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
77 %
Day
31 °C
Night
24 °C
Sea
29 °C
Precipitation
126 mm
in month
Rainy days
13 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
77 %
Overview: U.S. Virgin Islands
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Weather overview and FAQs
Weather overview
In U.S. Virgin Islands in September, the average air temperature ranges from 31 °C (88 °F) during the day to 24 °C (75 °F) at night. There are 13 days of rain on average, where the rainfall is 126 mm (4.94 in).
Are there good conditions to visit in U.S. Virgin Islands in September?
September is one of the best months to visit U.S. Virgin Islands. The daily temperatures in this month reach pleasant 31 °C (88 °F). The seawater temperature reaches ideal 29 °C (84 °F). At night, temperatures hover around a pleasant 24 °C (75 °F).
What is the temperature in U.S. Virgin Islands during the day in September?
In September in U.S. Virgin Islands, 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 September in U.S. Virgin Islands?
The temperature of the sea in U.S. Virgin Islands in September is 29 °C (84 °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 days of precipitation on average can I expect in U.S. Virgin Islands in September?
There are 13 days, which are rainy in U.S. Virgin Islands 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 3.0 days of the week, or in general - 43 % days.
What is the air temperature in September in U.S. Virgin Islands at night?
The average night temperature in U.S. Virgin Islands in September is 24 °C (75 °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 U.S. Virgin Islands in September?
There is precipitation of 126 mm (4.94 in) in U.S. Virgin Islands in September, which means 4 mm (0.17 in) rainfall per day on average.
How many sunny hours can I expect in U.S. Virgin Islands in September?
There is an average length of sunshine of 8 hours per day in September in U.S. Virgin Islands.
Is there a dry season in September in U.S. Virgin Islands?
No, September is not a dry month in U.S. Virgin Islands, expect rain approximately 13 days in a month.
How long is the day (from dawn till dusk) in U.S. Virgin Islands in September?
The length of daylight in U.S. Virgin Islands in September is 12 hours.
Is it hot in September in U.S. Virgin Islands?
In September in U.S. Virgin Islands, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How windy is it in U.S. Virgin Islands in September?
An average wind scale that can be expected in U.S. Virgin Islands in September is 4.
How humid is U.S. Virgin Islands in September?
Humidity in U.S. Virgin Islands in September is 77 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
Is U.S. Virgin Islands rainier in September than in October?
No, September in U.S. Virgin Islands is not a rainier month than October.