Measurements:
°C
°F
Mount Desert Island
8°F
SE 14 mph
Feels like: -10°F
Precip: 0%
World Resorts USA Mount Desert Island Weather

Mount Desert Island Sea Water Temperature

Current Sea Water Temperature:
+42.2°F
Maximum Sea Water Temperature in December: 48.2°F
Minimum Sea Water Temperature in December: 41.2°F
Average water temperature in December: 44.3°F

Sea Water Temperature for the Last 10 Days:

December 22 42.2°F December 17 42.6°F
December 21 42.2°F December 16 42.6°F
December 20 42.0°F December 15 42.8°F
December 19 41.6°F December 14 43.0°F
December 18 41.4°F December 13 42.2°F

When is the Warmest Sea for Mount Desert Island?

According to our data for the last three years for Mount Desert Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Mount Desert Island was 61.3°F. The maximum and minimum values were 58.0°F and 63.8°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Mount Desert Island was 62.0°F. The maximum and minimum values were 56.6°F and 66.4°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Mount Desert Island was 58.8°F. The maximum and minimum values were 56.4°F and 61.4°F respectively.

Best Time to Visit Mount Desert Island
The most sunny months:
September 13 days
October 12 days
November 12 days
The most warm months:
July 75.2 °F
August 74.3 °F
June 68.5 °F
Warmest sea temperature:
August 63.2 °F
July 61.3 °F
September 59.5 °F
The most cold months:
January 27.5 °F
February 28.0 °F
December 34.8 °F
The most rainy months:
December 4 days
July 3 days
April 3 days
The most windy months:
March 10 mph
December 10 mph
February 10 mph

Mount Desert Island on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
Mount Desert Island
Local time: 05:17
22 dec, sunday
0600 8°F
SE
14 mph
0900 8°F
SE
12 mph
1200 14°F
SE
13 mph
1500 18°F
SE
13 mph
1800 20°F
SE
12 mph
2100 12°F
SE
11 mph
23 dec, monday
0000 10°F
SE
9 mph
0300 10°F
SE
7 mph