Bar Harbor (ME)
December
Weather in Bar Harbor, Maine for December 2025
Your guide to Bar Harbor weather in December - trends and predictions
Bar Harbor typically experiences moderate snowfall in December, with an average of 6 snowy days.
In general, the average temperature in Bar Harbor at the beginning of December is 1.4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 3 °F by the end of December.
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Snow Forecast ❄️
Temperatures
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17
Dry days
8
Rainy days
6
Snow days
2°/-4°
Temperatures
21 km/h
Avg max wind
69 %
Avg humidity
Bar Harbor Weather December
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Temperatures trend during December in Bar Harbor
See the weather trend as well as the moving average line
December weather in Bar Harbor day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Partly cloudy | 3° /-2° | 0 mm | 0 cm | |
| Dec. 2 |  Sunny | 3° /-3° | 0 mm | 0 cm | |
| Dec. 3 | Sunny | 1° /-3° | 0 mm | 0 cm | |
| Dec. 4 |  Cloudy | 1° /-4° | 0.2 mm | 0 cm | |
| Dec. 5 |  Moderate or heavy rain shower | 5° /0° | 58.7 mm | 0 cm | |
| Dec. 6 | Sunny | 0° /-6° | 0 mm | 0 cm | |
| Dec. 7 | Sunny | -3° /-8° | 0 mm | 0 cm | |
| Dec. 8 |  Moderate or heavy snow showers | 2° /-4° | 14.1 mm | 6.4 cm | |
| Dec. 9 |  Overcast | 0° /-5° | 1.4 mm | 0.9 cm | |
| Dec. 10 | Overcast | 2° /-3° | 8.6 mm | 6.2 cm | |
| Dec. 11 | Moderate or heavy rain shower | 13° /2° | 61.5 mm | 0 cm | |
| Dec. 12 | Moderate or heavy rain shower | 11° /0° | 36.8 mm | 0 cm | |
| Dec. 13 | Sunny | 0° /-4° | 0 mm | 0 cm | |
| Dec. 14 | Sunny | -1° /-6° | 0 mm | 0 cm | |
| Dec. 15 | Sunny | 0° /-7° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 3° /-2° | 0 mm | 0 cm | |
| Dec. 17 | Moderate or heavy rain shower | 10° /3° | 24.5 mm | 0 cm | |
| Dec. 18 | Cloudy | 5° /1° | 1.5 mm | 0 cm | |
| Dec. 19 | Moderate or heavy rain shower | 5° /-2° | 20.8 mm | 0 cm | |
| Dec. 20 | Overcast | -2° /-4° | 2.1 mm | 0.8 cm | |
| Dec. 21 |  Light freezing rain | -3° /-6° | 4.6 mm | 2 cm | |
| Dec. 22 | Sunny | -8° /-12° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | -3° /-12° | 0 mm | 0 cm | |
| Dec. 24 | Moderate or heavy snow showers | 0° /-7° | 11.7 mm | 7.8 cm | |
| Dec. 25 | Overcast | -1° /-8° | 0 mm | 0 cm | |
| Dec. 26 | Sunny | 0° /-7° | 0 mm | 0 cm | |
| Dec. 27 | Sunny | 1° /-9° | 0 mm | 0 cm | |
| Dec. 28 | Cloudy | 2° /-7° | 0 mm | 0 cm | |
| Dec. 29 |  Patchy rain possible | 3° /0° | 1.4 mm | 0 cm | |
| Dec. 30 | Moderate or heavy rain shower | 9° /5° | 21.9 mm | 0 cm | |
| Dec. 31 | Sunny | 7° /2° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Bar Harbor 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 Bar Harbor forecast closer to your planned date for the most up-to-date weather information.
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Bar Harbor in December - FAQ
What are the expected maximum and minimum temperatures in Bar Harbor during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Bar Harbor during December?
Significant rainfall exceeding 269.8 mm is expected in Bar Harbor during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Bar Harbor in December 2025?
Bar Harbor experiences an average snowfall of 24.1 cm during December, occurring over 6 days.
What are the typical wind conditions in Bar Harbor during December?
The average wind speed in Bar Harbor during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Bar Harbor snow forecast December 2025
Track daily snowfall levels and discover Bar Harbor’s snowy potential this December ❄️
December rainfall patterns in Bar Harbor
Explore the daily rainfall trends and prepare for Bar Harbors December weather 💧
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