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United States weather

Weather in Bar Harbor, Maine for December 2025

Your guide to Bar Harbor weather in December - trends and predictions

    Snow Forecast ❄️

  • Bar Harbor typically experiences moderate snowfall in December, with an average of 6 snowy days.
    According to Bar Harbor snow forecast for December 2025, 6 snowy days are expected until the end of the month. The closest date with snow is Saturday, December 20.

    • Temperatures

  • Until now, December 2025 in Bar Harbor is slightly cooler than the historical average by -0.9 °F.

  • Expect cooler weather in the next days in Bar Harbor with the forecast suggesting a temperature of -0.1 °F, lower than the historical average.

  • In general, the average temperature in Bar Harbor at the beginning of December is 1.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -3.3 °F by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
17
Dry days
Average rainy days
8
Rainy days
Average snowy days
6
Snow days
Average temperatures
2°/-4°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Bar Harbor Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
5°
2
Sunny
3°
3
Sunny
1°
4
Cloudy
2°
5
Moderate or heavy rain shower
0°
6
Sunny
1°
7
Sunny
-1°
8
Moderate or heavy snow showers
-0°
9
Overcast
0°
10
Overcast
4°
11
Moderate or heavy rain shower
9°
12
Moderate or heavy rain shower
5°
13
Sunny
-1°
14
Sunny
-0°
15
Sunny
-1°
16
Overcast
2°
17
Sunny
7°
18
Partly cloudy
5°
19
Heavy rain
10°
20
Partly cloudy
-1°
21
Patchy rain possible
4°
22
Partly cloudy
-2°
23
Moderate or heavy snow showers
1°
24
Patchy rain possible
4°
25
Moderate or heavy snow showers
1°
26
Sunny
-3°
27
Sunny
-9°
28
Heavy snow
-5°
29
Sunny
-9°
30
Patchy moderate snow
-5°
31
Sunny
7°

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

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Partly cloudy
Partly cloudy
 5° /-3° 14.1 mm 0 cm
Dec. 2 Sunny
Sunny
 3° /-4° 10.1 mm 6 cm
Dec. 3 Sunny
Sunny
 1° /-3° 27.4 mm 8.3 cm
Dec. 4 Cloudy
Cloudy
 2° /-6° 0.1 mm 0 cm
Dec. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 0° /-6° 29.3 mm 0 cm
Dec. 6 Sunny
Sunny
 1° /-6° 1.2 mm 0 cm
Dec. 7 Sunny
Sunny
 -1° /-5° 0 mm 0 cm
Dec. 8 Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-7° 9.4 mm 4.9 cm
Dec. 9 Overcast
Overcast
 0° /-9° 0.7 mm 0.4 cm
Dec. 10 Overcast
Overcast
 4° /-2° 23.4 mm 6 cm
Dec. 11 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /-2° 39.5 mm 0 cm
Dec. 12 Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /-4° 18.4 mm 0 cm
Dec. 13 Sunny
Sunny
 -1° /-5° 0 mm 0 cm
Dec. 14 Sunny
Sunny
 0° /-6° 1 mm 0.7 cm
Dec. 15 Sunny
Sunny
 -1° /-7° 0 mm 0 cm
Dec. 16 Overcast
Overcast
 2° /-5° 0 mm 0 cm
Dec. 17 Sunny
Sunny
 7° /-2° 0 mm 0 cm
Dec. 18 Partly cloudy
Partly cloudy
 5° /-2° 0 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 10° /5° 55.8 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 -1° /-5° 0.1 mm 0 cm
Dec. 21 Patchy rain possible
Patchy rain possible
 4° /-2° 1.8 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
 -2° /-7° 0 mm 0 cm
Dec. 23 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-7° 3.3 mm 2.4 cm
Dec. 24 Patchy rain possible
Patchy rain possible
 4° /-3° 0.3 mm 0.1 cm
Dec. 25 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-5° 4.9 mm 0 cm
Dec. 26 Sunny
Sunny
 -3° /-9° 0 mm 0 cm
Dec. 27 Sunny
Sunny
 -9° /-12° 0 mm 0 cm
Dec. 28 Heavy snow
Heavy snow
 -5° /-11° 3.3 mm 1.7 cm
Dec. 29 Sunny
Sunny
 -9° /-14° 0 mm 0 cm
Dec. 30 Patchy moderate snow
Patchy moderate snow
 -5° /-11° 0.6 mm 0.5 cm
Dec. 31 Sunny
Sunny
 7° /2° 0 mm 0 cm
Next
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 24.06 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 ❄️
On average, Bar Harbor sees 6 snowy days during December, with approximately 24.1 cm of total snowfall.

December rainfall patterns in Bar Harbor

Explore the daily rainfall trends and prepare for Bar Harbors December weather 💧
Typically, Bar Harbor has 8 rainy days in December with a total of 269.8 mm of rainfall.

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Location coordinates Where is Bar Harbor?

Get accurate weather forecasts for Bar Harbor, located at latitude 44.388 and longitude -68.204. Stay updated with localized weather information tailored for Bar Harbor.

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