Measurements:
°C
°F
CURRENT WEATHER
13:07
Mount Desert Island
58°F
NW 12 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Mount Desert Island Weather

7 Day Weather Forecast

05.14
thu
DAY
58°F
NW 12 mph
precip
0%
NIGHT
50°F
W 10 mph
precip
100%
05.15
fri
DAY
54°F
W 6 mph
precip
73%
NIGHT
44°F
NW 4 mph
precip
0%
05.16
sat
DAY
64°F
NE 11 mph
precip
0%
NIGHT
52°F
NE 8 mph
precip
0%
05.17
sun
DAY
70°F
SE 17 mph
precip
0%
NIGHT
48°F
SE 6 mph
precip
0%
05.18
mon
DAY
64°F
SE 6 mph
precip
0%
NIGHT
50°F
NE 5 mph
precip
0%
05.19
tue
DAY
70°F
NE 10 mph
precip
0%
NIGHT
60°F
NE 6 mph
precip
0%
05.20
wed
DAY
80°F
NE 11 mph
precip
100%
NIGHT
60°F
E 8 mph
precip
0%

Mount Desert Island Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Mount Desert Island was 7.8°F. The maximum and minimum values were 5.5°F and 9.9°F respectively.

Mount Desert Island on the Weather Map

Best Time to Visit Mount Desert Island
The most sunny months:
November 13 days
September 13 days
October 13 days
The most warm months:
July 74.4 °F
August 73.7 °F
June 68.2 °F
Warmest sea temperature:
August 62.9 °F
July 60.9 °F
September 59.6 °F
The most cold months:
January 26.6 °F
February 27.9 °F
December 33.1 °F
The most rainy months:
December 3 days
October 3 days
September 2 days
The most windy months:
December 11 mph
March 10 mph
February 10 mph
more details