Measurements:
°C
°F
CURRENT WEATHER
19:51
Mount Desert Island
50°F
E 15 mph
Feels like: 44°F
Precip: 4%
World Resorts USA Mount Desert Island Weather

7 Day Weather Forecast

10.05
mon
DAY
60°F
E 10 mph
precip
21%
NIGHT
44°F
E 14 mph
precip
5%
10.06
tue
DAY
52°F
E 19 mph
precip
2%
NIGHT
42°F
E 9 mph
precip
5%
10.07
wed
DAY
56°F
N 10 mph
precip
10%
NIGHT
56°F
NE 13 mph
precip
21%
10.08
thu
DAY
62°F
NE 13 mph
precip
48%
NIGHT
50°F
SE 3 mph
precip
17%
10.09
fri
DAY
60°F
SE 15 mph
precip
7%
NIGHT
46°F
SE 7 mph
precip
9%
10.10
sat
DAY
48°F
SE 16 mph
precip
2%
NIGHT
36°F
SE 6 mph
precip
6%
10.11
sun
DAY
54°F
NE 13 mph
precip
14%
NIGHT
58°F
NE 13 mph
precip
24%

Mount Desert Island Sea Water Temperature in October, °F

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Mount Desert Island was 12.7°F. The maximum and minimum values were 11.6°F and 14.6°F respectively.

Mount Desert Island on the Weather Map

Best Time to Visit Mount Desert Island
The most sunny months:
October 13 days
November 13 days
September 12 days
The most warm months:
July 75.5 °F
August 74.9 °F
June 69.2 °F
Warmest sea temperature:
August 62.8 °F
July 60.7 °F
September 59.3 °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