Weather in September
The perfect water temperature of 84.9°F (29.4°C) makes September
a great period for swimming and other water activities in Virgin Islands National Park
, United States Virgin Islands
With an average ocean temperature of 84.9°F (29.4°C), September is the month with the warmest seawater.Note
: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
In September, the average length of the day in Virgin Islands National Park is 12h and 14min.
On the first day of September, sunrise is at 6:04 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:08 pm AST.