Saint Thomas Island (Saint Thomas)
December
Weather in Saint Thomas Island for December 2025
Your guide to Saint Thomas Island weather in December - trends and predictions
Until now, December 2025 in Saint Thomas Island has been nearly identical to the historical average, with a temperature of 27.6 °C (showing only a slight deviation of -0.4 °C).
The forecast for the next days in Saint Thomas Island predicts temperatures to be around 26 °C, close to the historical average.
In general, the average temperature in Saint Thomas Island at the beginning of December is 28.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 25.7 °C by the end of December.
Saint Thomas Island in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 319.2 mm.
Temperatures
Rain 🌧️
14
Dry days
17
Rainy days
0
Snow days
28°/26°
Temperatures
31 km/h
Avg max wind
79 %
Avg humidity
Saint Thomas Island Weather December
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What’s the Weather Like in Saint Thomas Island This December?
Discover the average temperatures and weather trends across Saint Thomas Island’s cities this December.
Temperatures trend during December in Saint Thomas Island
See the weather trend as well as the moving average line
December weather in Saint Thomas Island day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Cloudy | 28° /26° | 3.7 mm | 6 | |
| 2 Dec. |  Moderate or heavy rain shower | 29° /26° | 12.2 mm | 6 | |
| 3 Dec. |  Partly cloudy | 29° /26° | 3.6 mm | 7 | |
| 4 Dec. | Moderate rain at times | 29° /26° | 2.4 mm | 7 | |
| 5 Dec. | Partly cloudy | 28° /26° | 0.2 mm | 7 | |
| 6 Dec. | Partly cloudy | 27° /26° | 0 mm | 7 | |
| 7 Dec. | Moderate or heavy rain shower | 27° /26° | 8.4 mm | 6 | |
| 8 Dec. | Partly cloudy | 29° /25° | 4 mm | 7 | |
| 9 Dec. | Moderate or heavy rain shower | 29° /26° | 5.2 mm | 7 | |
| 10 Dec. | Cloudy | 28° /26° | 0 mm | 7 | |
| 11 Dec. |  Patchy rain possible | 27° /26° | 0.2 mm | 6 | |
| 12 Dec. | Moderate or heavy rain shower | 28° /26° | 6.8 mm | 6 | |
| 13 Dec. |  Overcast | 28° /26° | 8.4 mm | 6 | |
| 14 Dec. | Cloudy | 28° /26° | 1.7 mm | 6 | |
| 15 Dec. | Moderate or heavy rain shower | 28° /26° | 32.5 mm | 6 | |
| 16 Dec. | Light rain shower | 28° /26° | 19 mm | 6 | |
| 17 Dec. | Moderate or heavy rain shower | 27° /25° | 29.9 mm | 6 | |
| 18 Dec. | Moderate or heavy rain shower | 28° /26° | 18.5 mm | 6 | |
| 19 Dec. |  Heavy rain at times | 27° /25° | 6.2 mm | 6 | |
| 20 Dec. | Overcast | 27° /25° | 0 mm | 5 | |
| 21 Dec. | Overcast | 27° /26° | 0 mm | 6 | |
| 22 Dec. |  Sunny | 29° /26° | 0 mm | 1.7 | |
| 23 Dec. | Patchy rain possible | 29° /26° | 3.2 mm | 1.6 | |
| 24 Dec. | Patchy rain possible | 27° /26° | 4.2 mm | 1.6 | |
| 25 Dec. | Patchy rain possible | 26° /25° | 2.2 mm | 0.1 | |
| 26 Dec. | Patchy rain possible | 26° /26° | 1.1 mm | 6 | |
| 27 Dec. | Patchy rain possible | 26° /25° | 0.3 mm | 6 | |
| 28 Dec. | Patchy rain possible | 26° /25° | 0.5 mm | 6 | |
| 29 Dec. | Patchy rain possible | 26° /25° | 1.6 mm | 6 | |
| 30 Dec. | Patchy rain possible | 25° /25° | 0.2 mm | 6 | |
| 31 Dec. | Sunny | 25° /25° | 0.1 mm | 7 | |
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Important Notice
Our weather forecast for Saint Thomas Island in December 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.
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Saint Thomas Island in December - FAQ
What are the expected maximum and minimum temperatures in Saint Thomas Island during December?
During December, expect a variety of temperatures with highs around 28° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Thomas Island during December?
Significant rainfall exceeding 319.2 mm is expected in Saint Thomas Island during December, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint Thomas Island during December?
The average wind speed in Saint Thomas Island during December is 31 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Saint Thomas Island
Explore the daily rainfall trends and prepare for Saint Thomas Islands December weather 💧
Typically, Saint Thomas Island has 17 rainy days in December with a total of 319.2 mm of rainfall.
UV exposure in Saint Thomas Island during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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