Measurements:
°C
°F
CURRENT WEATHER
14:29
Mount Desert Island
90°F
E 14 mph
Feels like: 88°F
Precip: 1%
World Resorts USA Mount Desert Island Weather

7 Day Weather Forecast

07.15
wed
DAY
90°F
SE 14 mph
precip
2%
NIGHT
66°F
E 7 mph
precip
3%
07.16
thu
DAY
78°F
E 12 mph
precip
1%
NIGHT
58°F
E 8 mph
precip
4%
07.17
fri
DAY
74°F
SE 14 mph
precip
2%
NIGHT
58°F
E 4 mph
precip
5%
07.18
sat
DAY
76°F
N 9 mph
precip
1%
NIGHT
62°F
N 10 mph
precip
81%
07.19
sun
DAY
68°F
NE 11 mph
precip
27%
NIGHT
64°F
E 14 mph
precip
5%
07.20
mon
DAY
74°F
E 9 mph
precip
3%
NIGHT
58°F
N 6 mph
precip
11%
07.21
tue
DAY
64°F
N 10 mph
precip
49%
NIGHT
62°F
E 6 mph
precip
35%

Mount Desert Island Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Mount Desert Island was 15.2°F. The maximum and minimum values were 14.2°F and 16.5°F respectively.

Mount Desert Island on the Weather Map

Best Time to Visit Mount Desert Island
The most sunny months:
September 13 days
October 13 days
November 13 days
The most warm months:
July 74.4 °F
August 73.7 °F
June 69.2 °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
March 2 days
The most windy months:
December 11 mph
March 10 mph
February 10 mph
more details