St Thomas weather

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The weather guide for St Thomas, Virgin Islands shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in St Thomas?

The hottest time of year in St Thomas is normally August. Expect maximum daytime temperatures to reach 31°C with high heat and humidity.

Which month has the most rain in St Thomas?

In terms of rainfall, October is usually the wettest month in St Thomas with 161mm on average. There are normally 16 days in October with some rain.

When is it sunniest in St Thomas?

The sunniest time of year in St Thomas is normally March with bright sunshine on average for 73% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in St Thomas?

The sea is usually at its warmest in St Thomas in September when the water temperature reaches 29°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare St Thomas weather with the USA

Below the St Thomas weather chart shows average maximum daytime temperature for St Thomas, Virgin Islands and the USA (Washington).

Maximum daytime temperature (°C)

St Thomas, Virgin Islands
USA (Washington)
28
5
28
7
28
13
29
19
29
24
30
29
30
31
31
30
31
26
30
20
29
14
28
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: St Thomas, Virgin Islands hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
2.2%
3.7%
1.5%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The St Thomas, Virgin Islands tropical storm risk chart above shows the hurricane season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

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