World Resorts USA Mount Desert Island Weather

Mount Desert Island Sea Temperature in August

Average sea water temperature in August:
+61.7°F
Minimum sea water temperature in August: 68.2°F
Maximum sea water temperature in August: 57.0°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 60.2°F. The highest and lowest sea temperatures during the month were 63.0°F and 57.0°F.

Monthly sea water temperature in Mount Desert Island, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Sanibel Island 88.8°F 87.3°F
Everglades 88.8°F 87.0°F
Key West 88.8°F 87.8°F
Key Largo 88.7°F 87.3°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Galveston 87.9°F 88.3°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
West Palm Beach 86.8°F 86.2°F
Cocoa Beach 86.8°F 84.5°F
Pensacola Beach 86.6°F 87.4°F

Best time for vacation in Mount Desert Island

Sunniest months:
November 13 days
October 13 days
September 13 days
Warmest months:
July 71.9 °F
August 71.3 °F
June 66.4 °F
Warmest sea temp:
August 61.6 °F
July 59.8 °F
September 58.6 °F
Coldest months:
January 28.9 °F
February 29.9 °F
December 34.8 °F
Rainiest months:
December 3 days
October 3 days
March 2 days
Windiest months:
December 10.7 mph
February 10.6 mph
March 10.5 mph

Mount Desert Island on a weather map

Mount Desert Island
+39°F
E 11 mph
Feels like: +32°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+72°F
+72°F
+82°F
+77°F
+75°F
+73°F
+68°F
+45°F
+81°F
+59°F
+73°F
+77°F
+77°F
+36°F
24 Hours Forecast
Mount Desert Island
Local time: 16:27
February 26, thursday
1800
37°F
E
7 mph
2100
28°F
S
7 mph
February 27, friday
0000
23°F
SE
11 mph
0300
19°F
SE
10 mph
0600
18°F
SE
8 mph
0900
21°F
SE
7 mph
1200
30°F
E
7 mph
1500
32°F
NE
9 mph
Units of measurement: °C / °F