Seasonal ranking
Coldest sea temperature in US Virgin Islands in September
Where the sea is coolest across US Virgin Islands during September, ranked by long-term monthly average water temperature. Magens Bay (St Thomas, US Virgin Islands) is the coolest at around 29°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Magens BaySt Thomas · US Virgin Islands · Caribbean SeaWarm — comfortable swimming29°CSeptember average
- 2Trunk BaySt John · US Virgin Islands · Caribbean SeaWarm — comfortable swimming29°CSeptember average
- 3Coki BeachSt Thomas & St John · US Virgin Islands · Caribbean SeaWarm — comfortable swimming29°CSeptember average
- 4Cinnamon BaySt Thomas & St John · US Virgin Islands · Caribbean SeaWarm — comfortable swimming29°CSeptember average
- 5Sandy Point St CroixSt Croix · US Virgin Islands · Caribbean SeaWarm — comfortable swimming29°CSeptember average
Coldest sea in September elsewhere
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US Virgin Islands in September — frequently asked questions
- Where is the sea coldest in US Virgin Islands in September?
- Magens Bay in US Virgin Islands has the coldest sea in US Virgin Islands in September, averaging about 29.0 °C. Trunk Bay (29.0 °C) and Coki Beach are the next coolest.
- How many beaches in US Virgin Islands are warm enough to swim in September?
- 5 of the top 5 ranked beaches in US Virgin Islands average 22 °C or more in September, which most swimmers find comfortable without a wetsuit.
- How are these September sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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