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
| Bar Harbor |
monthly
weather
weather
| Bar Harbor |
Sea water temperature for the last 10 days:
| April 29 | 42.3°F | April 24 | 40.6°F |
| April 28 | 42.4°F | April 23 | 40.3°F |
| April 27 | 42.1°F | April 22 | 40.8°F |
| April 26 | 41.5°F | April 21 | 40.6°F |
| April 25 | 40.5°F | April 20 | 41.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Bar Harbor?
Based on the data about daily sea water temperature for the last three years the warmest sea in Bar Harbor was noticed in August, July and September.
Monthly Sea Temperatures in Bar Harbor, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 59.7°F. The highest and lowest sea temperatures during the month were 62.6°F and 56.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 57.4°F. The highest and lowest sea temperatures during the month were 60.1°F and 54.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 58.5°F. The highest and lowest sea temperatures during the month were 61.2°F and 56.7°F.
current
weather
weather
| Bar Harbor |
weather in
May
May
| Bar Harbor |
Best time for vacation in Bar Harbor
Bar Harbor on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Bar Harbor
Local time: 08:32
April 29, wednesday
0900
43°F
W
12 mph
12 mph
1200
43°F
W
12 mph
12 mph
1500
43°F
W
12 mph
12 mph
1800
43°F
NW
9 mph
9 mph
2100
41°F
NW
11 mph
11 mph
April 30, thursday
0000
41°F
W
14 mph
14 mph
0300
41°F
NW
14 mph
14 mph
0600
43°F
NW
12 mph
12 mph
