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Weather in Saint Thomas Island for September 2024

Your guide to Saint Thomas Island weather in September - trends and predictions
  • Until now, September 2024 in Saint Thomas Island is slightly cooler than the historical average by -0.8 °C.

  • The forecast for the next days in Saint Thomas Island predicts temperatures to be around 30 °C, close to the historical average.

  • In general, the average temperature in Saint Thomas Island at the beginning of September is 29.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29 °C by the end of September.

  • Saint Thomas Island experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.

  • Is September a good time to visit Saint Thomas Island? check out the best time to travel to Saint Thomas Island page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
5
Dry days
Average rainy days
25
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/28°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Saint Thomas Island in September average weather

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Temperatures trend during September in Saint Thomas Island

See the weather trend as well as the moving average line
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September weather day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
1 Sept. Heavy rain at times
Heavy rain at times
29° /28° 13.5 mm 6
2 Sept. Patchy rain possible
Patchy rain possible
30° /28° 5 mm 7
3 Sept. Patchy rain possible
Patchy rain possible
30° /28° 2.1 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
29° /28° 0.9 mm 6
5 Sept. Partly cloudy
Partly cloudy
29° /28° 1.3 mm 7
6 Sept. Light rain shower
Light rain shower
30° /28° 1.5 mm 7
7 Sept. Light rain shower
Light rain shower
30° /27° 5 mm 7
8 Sept. Light rain shower
Light rain shower
30° /28° 4.4 mm 7
9 Sept. Thundery outbreaks possible
Thundery outbreaks possible
30° /28° 12 mm 7
10 Sept. Thundery outbreaks possible
Thundery outbreaks possible
30° /27° 2.8 mm 7
11 Sept. Light rain shower
Light rain shower
30° /28° 2.5 mm 7
12 Sept. Light rain shower
Light rain shower
30° /28° 1.2 mm 7
13 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
30° /27° 6.6 mm 7
14 Sept. Overcast
Overcast
30° /28° 2.1 mm 7
15 Sept. Cloudy
Cloudy
29° /28° 0.3 mm 6
16 Sept. Overcast
Overcast
29° /28° 0.1 mm 7
17 Sept. Light rain shower
Light rain shower
29° /27° 0.6 mm 6
18 Sept. Cloudy
Cloudy
30° /27° 0.4 mm 7
19 Sept. Sunny
Sunny
32° /27° 0 mm 10
20 Sept. Sunny
Sunny
32° /28° 0.1 mm 11
21 Sept. Sunny
Sunny
30° /28° 0 mm 11
22 Sept. Patchy rain possible
Patchy rain possible
29° /29° 0.6 mm 11
23 Sept. Patchy rain possible
Patchy rain possible
29° /29° 1.3 mm 1
24 Sept. Patchy rain possible
Patchy rain possible
29° /29° 2.2 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
29° /29° 0.2 mm 6
26 Sept. Patchy rain possible
Patchy rain possible
29° /29° 0.5 mm 6
27 Sept. Patchy rain possible
Patchy rain possible
29° /29° 0.1 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
29° /29° 1.4 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
29° /29° 0.2 mm 6
30 Sept. Partly cloudy
Partly cloudy
29° /28° 0.1 mm 7
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Important Notice
Our weather forecast for Saint Thomas Island in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint Thomas Island forecast closer to your planned date for the most up-to-date weather information.

Saint Thomas Island in September - FAQ

What are the expected maximum and minimum temperatures in Saint Thomas Island during September?
During September, expect a variety of temperatures with highs around 30° and lows near 28°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Thomas Island during September?
Moderate rainfall is anticipated in Saint Thomas Island during September, with a total of 80.3 mm spread over approximately 25 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Saint Thomas Island during September?
The average wind speed in Saint Thomas Island during September is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Saint Thomas Island in September?

As you prepare for your trip to Saint Thomas Island in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Saint Thomas Island, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
    • Insect Repellent: For destinations with mosquitos or other insects
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Location coordinates Where is Saint Thomas Island?

Get accurate weather forecasts for Saint Thomas Island, located at latitude 18.342 and longitude -64.931. Stay updated with localized weather information tailored for Saint Thomas Island.

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