Measurements:
°C
°F
CURRENT WEATHER
22:43
Mount Desert Island
44°F
S 11 mph
Feels like: 38°F
Precip: 4%
World Resorts USA Mount Desert Island Weather

7 Day Weather Forecast

10.26
mon
DAY
62°F
E 6 mph
precip
1%
NIGHT
44°F
S 11 mph
precip
4%
10.27
tue
DAY
44°F
SE 7 mph
precip
1%
NIGHT
32°F
SE 5 mph
precip
11%
10.28
wed
DAY
46°F
E 6 mph
precip
10%
NIGHT
38°F
NE 5 mph
precip
12%
10.29
thu
DAY
58°F
NE 9 mph
precip
3%
NIGHT
54°F
NE 9 mph
precip
29%
10.30
fri
DAY
60°F
SE 14 mph
precip
2%
NIGHT
44°F
SE 12 mph
precip
5%
10.31
sat
DAY
50°F
SE 10 mph
precip
4%
NIGHT
38°F
SE 2 mph
precip
15%
11.01
sun
DAY
52°F
NE 7 mph
precip
7%
NIGHT
44°F
NE 7 mph
precip
46%

Mount Desert Island Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Mount Desert Island was 12.5°F. The maximum and minimum values were 11.0°F and 14.4°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