Measurements:
°C
°F
CURRENT WEATHER
01:10
Mount Desert Island
40°F
S 13 mph
Feels like: 34°F
Precip: 0%
World Resorts USA Mount Desert Island Weather December Weather in Mount Desert Island

Mount Desert Island Weather: December

Average Day Temperature: 34.2°F
Average Night Temperature: 29.5°F
Sea Water Temperature: 44.1°F
Number of Sunny Days: 9 days
Sunshine Hours: 8.8 - 9.1 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.6 in
detailed information

Air Temperature in December, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
8
16
24
32
40
48
56
64
Day Temperature   
Night Temperature

The highest day temperature in December 2024 was 49°F. The lowest night temperature was 7°F. The average values for day and night temperatures during December were 32.0°F и 26.0°F respectivly.

Mount Desert Island Water Sea Temperature in December, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
36
39
42
45
48
51
54

The average sea surface temperature in December 2024 for Mount Desert Island was 42.9°F. The maximum and minimum values were 40.0°F and 46.4°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
29%
23%
48%

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation Totals in December, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.6
0.8
1.1
1.4
1.7
2.0

Precipitation total in December for Mount Desert Island is 1.6 in. It makes december the most rainy month of the year.

Wind Speed in December, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.8
3.6
5.4
7.3
9.1
10.9
12.7

The average wind speed in December is 10.2 mph. It makes December one of the most windy months of the year for Mount Desert Island.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.3
2.6
4.0
5.3
6.6
7.9
9.2
10.6

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Mount Desert Island in December is 4.0 hours.

Best Time to Visit Mount Desert Island
The most sunny months:
September 13 days
October 12 days
November 12 days
The most warm months:
July 75.2 °F
August 74.3 °F
June 68.5 °F
Warmest sea temperature:
August 63.2 °F
July 61.3 °F
September 59.5 °F
The most cold months:
January 27.1 °F
February 27.7 °F
December 34.2 °F
The most rainy months:
December 3 days
July 3 days
April 3 days
The most windy months:
February 11 mph
March 10 mph
December 10 mph
more details

Mount Desert Island on the Weather Map

USA Resorts:
NAME
F°
Boston +36
Chicago +40
Hawaii +78
Honolulu +78
Houston +64
Las Vegas +58
Los Angeles +52
Miami +70
New York +34
Orlando +58
San Diego +56
San Francisco +48
Sarasota +56
Tampa +58
Washington +38
all resorts
24 Hours Weather Forecast
Mount Desert Island
Local time: 01:10
18 mar, tuesday
0300 34°F
S
12 mph
0600 30°F
S
16 mph
0900 32°F
S
15 mph
1200 38°F
S
14 mph
1500 44°F
S
10 mph
1800 44°F
S
9 mph
2100 42°F
SW
4 mph
19 mar, wednesday
0000 38°F
SW
5 mph