World Resorts USA Mount Desert Island Weather

Mount Desert Island Sea Temperature in July

Average sea water temperature in July:
+59.8°F
Minimum sea water temperature in July: 66.0°F
Maximum sea water temperature in July: 54.3°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 58.2°F. The highest and lowest sea temperatures during the month were 60.6°F and 54.9°F.

Monthly sea water temperature in Mount Desert Island, °F

Which USA resorts have warmest sea in July?

Place name July 2025 July 2024
New Orleans 87.4°F 87.1°F
Pass Christian 87.3°F 86.7°F
Bay Saint Louis 87.2°F 86.7°F
Clearwater Beach 87.1°F 88.3°F
St. Petersburg 87.0°F 88.0°F
Sarasota 86.9°F 87.9°F
Sanibel Island 86.9°F 87.7°F
Siesta Key 86.9°F 87.9°F
Pensacola 86.9°F 87.3°F
Tampa 86.8°F 87.4°F
Key West 86.7°F 87.6°F
Orange Beach 86.7°F 86.7°F
Pensacola Beach 86.7°F 87.1°F
Marco Island 86.6°F 87.4°F
Naples 86.6°F 87.2°F
Galveston 86.4°F 86.3°F
Islamorada 86.4°F 87.4°F
Galveston Island 86.4°F 86.4°F
Miami 86.3°F 86.9°F
Panama City Beach 86.3°F 86.8°F

Best time for vacation in Mount Desert Island

Sunniest months:
September 13 days
November 13 days
October 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 29.4 °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
+16°F
E 21 mph
Feels like: -2°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+66°F
+70°F
+70°F
+70°F
+70°F
+30°F
+79°F
+52°F
+59°F
+57°F
+55°F
+25°F
24 Hours Forecast
Mount Desert Island
Local time: 18:25
December 30, tuesday
2100
14°F
E
21 mph
December 31, wednesday
0000
12°F
E
18 mph
0300
12°F
E
18 mph
0600
14°F
E
17 mph
0900
18°F
E
12 mph
1200
21°F
E
13 mph
1500
25°F
E
12 mph
1800
28°F
NE
7 mph
Units of measurement: °C / °F