Saint Thomas Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Saint Thomas, US Virgin Islands in September.

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Charlotte Amalie East End Lindbergh Bay Estate Thomas

Planning a journey to Saint Thomas, US Virgin Islands this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Saint Thomas in September

Saint Thomas, US Virgin Islands is a region in US Virgin Islands. September in Saint Thomas generally has warm temperatures, with high precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 27°C (81°F) in Charlotte Amalie. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

To learn more about the conditions in specific areas of Saint Thomas, US Virgin Islands, check out the map below.

Precipitation

September is a rainy month with an average rainfall of around 148 mm (5.8 in) in Charlotte Amalie. Looking at the climate data spanning the last 30 years, this month sees the heaviest rainfall of the year in Charlotte Amalie.

Explore Saint Thomas by month

Pick a month to see the average temperature, rainfall and sunshine in Saint Thomas — and find the best time to visit. (based on Charlotte Amalie)

January27°C (81°F) February27°C (81°F) March27°C (81°F) April27°C (81°F) May28°C (82°F) June29°C (84°F) This monthJuly29°C (84°F) August30°C (86°F) September30°C (86°F) October29°C (84°F) November29°C (84°F) December28°C (82°F)
Best Time to Visit Saint Thomas →

Best Places to Visit in Saint Thomas in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Saint Thomas.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Saint Thomas

What is the weather like in September for some of the most popular destinations in Saint Thomas, US Virgin Islands?

Temperature range in Saint Thomas (September)

Precipitation variation in Saint Thomas (September)

Charlotte Amalie

In September Charlotte Amalie generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly rainfall
114 mm (4.5 in)
148 mm (5.8 in)
140 mm (5.5 in)
Monthly rainy days
20 days
18 days
19 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Charlotte Amalie →

East End

In September East End generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly rainfall
113 mm (4.4 in)
147 mm (5.8 in)
140 mm (5.5 in)
Monthly rainy days
20 days
18 days
19 days
Weather conditions
tolerable
tolerable
pleasant
Climate in East End →

Lindbergh Bay

In September Lindbergh Bay generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly rainfall
115 mm (4.5 in)
148 mm (5.8 in)
140 mm (5.5 in)
Monthly rainy days
20 days
18 days
19 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Lindbergh Bay →

Estate Thomas

In September Estate Thomas generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly rainfall
114 mm (4.5 in)
148 mm (5.8 in)
140 mm (5.5 in)
Monthly rainy days
20 days
18 days
19 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Estate Thomas →

Mandal

In September Mandal generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly rainfall
114 mm (4.5 in)
147 mm (5.8 in)
140 mm (5.5 in)
Monthly rainy days
20 days
18 days
19 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Mandal →

Is your destination not in the list? Have a look at all destinations in Saint Thomas, in US Virgin Islands.

In our records: US Virgin Islands September extremes

Notable September records observed across cities in US Virgin Islands in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest September day in US Virgin Islands reached 44°C (111°F) in Frederiksted on September 14, 2013.

Popular cities in September

Day & night temperatures, rainfall and average weather in Saint Thomas in September.

City Weather Day temp Night temp Rainfall
Charlotte Amalie 30°C (86°F) 27°C (81°F) 148 mm (5.8 in)
East End 30°C (86°F) 27°C (81°F) 147 mm (5.8 in)
Lindbergh Bay 30°C (86°F) 27°C (81°F) 148 mm (5.8 in)
Estate Thomas 30°C (86°F) 27°C (81°F) 148 mm (5.8 in)
Mandal 30°C (86°F) 27°C (81°F) 147 mm (5.8 in)
Benner 30°C (86°F) 27°C (81°F) 147 mm (5.8 in)

Saint Thomas weather in September: frequently asked questions

What is the weather like in Saint Thomas, US Virgin Islands in September?

September in Saint Thomas, US Virgin Islands brings unpleasant weather. In Charlotte Amalie, daytime temperatures are typically around 30°C (86°F) and nighttime lows hover near 27°C (81°F).

What is the average temperature in Saint Thomas, US Virgin Islands in September?

Average temperatures in Saint Thomas, US Virgin Islands during September range from a nighttime low near 27°C (81°F) to a daytime high around 30°C (86°F) in Charlotte Amalie.

Does Saint Thomas, US Virgin Islands get a lot of rain in September?

Charlotte Amalie typically receives notable rainfall in September, about 148 mm (5.8 in) on average across Saint Thomas, US Virgin Islands.

Is September a Good Time to Visit Saint Thomas, US Virgin Islands?

In our opinion, September may not be the ideal time to visit Saint Thomas, US Virgin Islands due to the typically tolerable weather in Charlotte Amalie.

On average, the best time to visit Saint Thomas, US Virgin Islands is in January, February, March, April, May, June, July and December with generally perfect weather in Charlotte Amalie. On the other hand, the weather in August and September tend to be unpleasant.

Interested in more climate information?

We have much more information about the climate in Saint Thomas.

Weather and climate has detailed information for every country in the world. Are you going to US Virgin Islands? Get detailed historical weather averages for many cities in US Virgin Islands.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.