World Resorts USA Mount Desert Island Weather

Mount Desert Island 7 Days Forecast

27.12
sat
Day
14°F
S 11 mph
Precip.
0%
Night
16°F
SE 13 mph
Precip.
0%
28.12
sun
Day
27°F
SE 14 mph
Precip.
0%
Night
23°F
SE 5 mph
Precip.
0%
29.12
mon
Day
30°F
NW 11 mph
Precip.
100%
Night
41°F
N 11 mph
Precip.
100%
30.12
tue
Day
30°F
E 17 mph
Precip.
83%
Night
19°F
E 20 mph
Precip.
0%
31.12
wed
Day
23°F
E 21 mph
Precip.
0%
Night
21°F
E 11 mph
Precip.
0%
01.01
thu
Day
19°F
SE 8 mph
Precip.
0%
Night
16°F
E 14 mph
Precip.
0%
02.01
fri
Day
18°F
E 11 mph
Precip.
0%
Night
16°F
SE 8 mph
Precip.
0%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 43.6°F. The highest and lowest sea temperatures during the month were 46.6°F and 40.5°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 38.0°F. The highest and lowest sea temperatures during the month were 41.0°F and 35.2°F.

Air temperature in Mount Desert Island, °F

Precipitation total in Mount Desert Island, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Mount Desert Island

Sunniest months:
September 13 days
November 13 days
October 13 days
Warmest months:
July 71.9 °F
August 71.3 °F
June 66.4 °F
Warmest sea temp:
August 61.6 °F
July 59.8 °F
September 58.6 °F
Coldest months:
January 29.4 °F
February 29.9 °F
December 34.8 °F
Rainiest months:
December 3 days
October 3 days
March 2 days
Windiest months:
December 10.7 mph
February 10.6 mph
March 10.5 mph

Mount Desert Island on a weather map

Mount Desert Island
+18°F
SE 12 mph
Feels like: +7°F
Precip.: 0%
Places in USA:
Name
°F
+41°F
+75°F
+75°F
+57°F
+57°F
+82°F
+79°F
+73°F
+28°F
+61°F
+54°F
+70°F
+72°F
+77°F
+41°F
24 Hours Forecast
Mount Desert Island
Local time: 17:11
December 27, saturday
1800
18°F
SE
12 mph
2100
18°F
SE
13 mph
December 28, sunday
0000
16°F
SE
13 mph
0300
16°F
SE
13 mph
0600
16°F
SE
14 mph
0900
19°F
SE
14 mph
1200
27°F
SE
14 mph
1500
30°F
SE
14 mph
Units of measurement: °C / °F