World Resorts USA Mount Desert Island Weather

Mount Desert Island 7 Days Forecast

18.03
wed
Day
25°F
SE 11 mph
Precip.
0%
Night
27°F
N 4 mph
Precip.
0%
19.03
thu
Day
30°F
N 10 mph
Precip.
0%
Night
30°F
N 12 mph
Precip.
0%
20.03
fri
Day
43°F
E 5 mph
Precip.
0%
Night
37°F
NW 4 mph
Precip.
100%
21.03
sat
Day
46°F
S 5 mph
Precip.
0%
Night
36°F
NE 1 mph
Precip.
0%
22.03
sun
Day
41°F
NE 6 mph
Precip.
100%
Night
32°F
SE 9 mph
Precip.
63%
23.03
mon
Day
34°F
NW 10 mph
Precip.
0%
Night
27°F
S 14 mph
Precip.
0%
24.03
tue
Day
32°F
NW 12 mph
Precip.
0%
Night
28°F
NE 2 mph
Precip.
0%

Sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 34.3°F. The highest and lowest sea temperatures during the month were 36.9°F and 32.4°F.

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 38.8°F. The highest and lowest sea temperatures during the month were 42.6°F and 36.0°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:
November 13 days
September 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 28.9 °F
February 30.1 °F
December 34.8 °F
Rainiest months:
December 3 days
October 3 days
September 2 days
Windiest months:
December 10.7 mph
March 10.5 mph
February 10.4 mph

Mount Desert Island on a weather map

Mount Desert Island
+27°F
N 4 mph
Feels like: +25°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+79°F
+70°F
+66°F
+70°F
+70°F
+32°F
+63°F
+59°F
+57°F
+54°F
+61°F
+36°F
24 Hours Forecast
Mount Desert Island
Local time: 23:12
March 19, thursday
0000
27°F
N
4 mph
0300
25°F
NW
4 mph
0600
25°F
NW
4 mph
0900
28°F
NW
9 mph
1200
30°F
N
10 mph
1500
32°F
N
10 mph
1800
30°F
N
9 mph
2100
28°F
N
9 mph
Units of measurement: °C / °F