Current sea water temperature:
+42.3°F
| Minimum sea water temperature in April: | 44.6°F |
| Maximum sea water temperature in April: | 36.0°F |
| Average sea water temperature in April: | 40.7°F |
| more information | |
14 days
forecast
forecast
| Mount Desert Island |
monthly
weather
weather
| Mount Desert Island |
Sea water temperature for the last 10 days:
| April 29 | 42.3°F | April 24 | 40.8°F |
| April 28 | 42.4°F | April 23 | 40.5°F |
| April 27 | 42.1°F | April 22 | 41.0°F |
| April 26 | 41.5°F | April 21 | 40.6°F |
| April 25 | 40.6°F | April 20 | 41.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Mount Desert Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Mount Desert Island was noticed in August, July and September.
Monthly Sea Temperatures in Mount Desert Island, °F
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.
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.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 58.6°F. The highest and lowest sea temperatures during the month were 60.6°F and 56.7°F.
current
weather
weather
| Mount Desert Island |
weather in
May
May
| Mount Desert Island |
Best time for vacation in Mount Desert Island
Mount Desert Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mount Desert Island
Local time: 08:34
April 29, wednesday
0900
43°F
W
9 mph
9 mph
1200
43°F
W
12 mph
12 mph
1500
43°F
W
11 mph
11 mph
1800
43°F
W
9 mph
9 mph
2100
43°F
W
9 mph
9 mph
April 30, thursday
0000
41°F
W
12 mph
12 mph
0300
43°F
NW
13 mph
13 mph
0600
43°F
NW
12 mph
12 mph
