St. Thomas
December
Weather in St. Thomas for December 2025
Your guide to St. Thomas weather in December - trends and predictions
St. Thomas typically experiences moderate snowfall in December, with an average of 9 snowy days.
In general, the average temperature in St. Thomas at the beginning of December is 1.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 4.7 °C by the end of December.
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Snow Forecast ❄️
Temperatures
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14
Dry days
8
Rainy days
9
Snow days
4°/0°
Temperatures
22 km/h
Avg max wind
82 %
Avg humidity
St. Thomas Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  2° | 2  3° | 3 2° | 4  1° | 5  1° | 6  -0° | |
| 7  2° | 8  4° | 9 8° | 10 5° | 11  1° | 12  1° | 13  -1° |
| 14 2° | 15  4° | 16 6° | 17 5° | 18 3° | 19  0° | 20 2° |
| 21 -1° | 22 -1° | 23 2° | 24 4° | 25 5° | 26 5° | 27 5° |
| 28 5° | 29 7° | 30 4° | 31  2° |
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Temperatures trend during December in St. Thomas
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Moderate rain | 2° /-3° | 5.4 mm | 0 cm | |
| 2 Dec. | Light rain | 3° /0° | 1.4 mm | 0 cm | |
| 3 Dec. | Moderate rain | 2° /-1° | 11.1 mm | 2.5 cm | |
| 4 Dec. | Overcast | 1° /-1° | 11.6 mm | 0.6 cm | |
| 5 Dec. | Freezing fog | 1° /-3° | 10 mm | 0.8 cm | |
| 6 Dec. | Patchy rain possible | 0° /-4° | 6 mm | 4.3 cm | |
| 7 Dec. | Heavy snow | 2° /-2° | 4.3 mm | 3.1 cm | |
| 8 Dec. | Mist | 4° /0° | 0 mm | 0 cm | |
| 9 Dec. | Light drizzle | 8° /2° | 21.2 mm | 0 cm | |
| 10 Dec. | Moderate rain | 5° /0° | 5.5 mm | 1.8 cm | |
| 11 Dec. | Moderate or heavy snow showers | 1° /-2° | 2.5 mm | 1.2 cm | |
| 12 Dec. | Patchy moderate snow | 1° /-4° | 0 mm | 0 cm | |
| 13 Dec. | Partly cloudy | -1° /-6° | 0 mm | 0 cm | |
| 14 Dec. | Overcast | 2° /-5° | 0 mm | 0 cm | |
| 15 Dec. | Sunny | 4° /-2° | 4 mm | 0.8 cm | |
| 16 Dec. | Overcast | 6° /1° | 9.1 mm | 0 cm | |
| 17 Dec. | Light rain | 5° /2° | 2.7 mm | 0 cm | |
| 18 Dec. | Moderate or heavy snow showers | 3° /-1° | 6.8 mm | 3.6 cm | |
| 19 Dec. | Light freezing rain | 0° /-3° | 0.1 mm | 0 cm | |
| 20 Dec. | Overcast | 2° /-2° | 7 mm | 5 cm | |
| 21 Dec. | Overcast | -1° /-5° | 0 mm | 0 cm | |
| 22 Dec. | Light freezing rain | -1° /-6° | 0 mm | 0 cm | |
| 23 Dec. | Light rain | 2° /-1° | 9.6 mm | 5.5 cm | |
| 24 Dec. | Fog | 4° /1° | 6.2 mm | 4.5 cm | |
| 25 Dec. | Fog | 5° /1° | 0 mm | 0 cm | |
| 26 Dec. | Light rain | 5° /2° | 2.2 mm | 0 cm | |
| 27 Dec. | Light rain shower | 5° /3° | 5.4 mm | 0 cm | |
| 28 Dec. | Patchy rain possible | 5° /2° | 1.9 mm | 0 cm | |
| 29 Dec. | Light drizzle | 7° /3° | 31 mm | 0 cm | |
| 30 Dec. | Partly cloudy | 4° /0° | 4.4 mm | 1.1 cm | |
| 31 Dec. | Light snow | 2° /0° | 2.7 mm | 2 cm | |
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Important Notice
Our weather forecast for St. Thomas 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 St. Thomas forecast closer to your planned date for the most up-to-date weather information.
St. Thomas in December - FAQ
What are the expected maximum and minimum temperatures in St. Thomas during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in St. Thomas during December?
Significant rainfall exceeding 106.7 mm is expected in St. Thomas during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in St. Thomas in December 2025?
St. Thomas experiences an average snowfall of 14.895 cm during December, occurring over 9 days.
What are the typical wind conditions in St. Thomas during December?
The average wind speed in St. Thomas during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
St. Thomas snow forecast December 2025
Track daily snowfall levels and discover St. Thomas’s snowy potential this December ❄️
December rainfall patterns in St. Thomas
Explore the daily rainfall trends and prepare for St. Thomass December weather 💧
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