Current sea water temperature:
+37.2°F
| Minimum sea water temperature in January: | 43.0°F |
| Maximum sea water temperature in January: | 36.1°F |
| Average sea water temperature in January: | 39.8°F |
| more information | |
14 days
forecast
forecast
| Bar Harbor |
monthly
weather
weather
| Bar Harbor |
Sea water temperature for the last 10 days:
| January 12 | 37.2°F | January 7 | 38.3°F |
| January 11 | 37.2°F | January 6 | 38.3°F |
| January 10 | 36.5°F | January 5 | 38.1°F |
| January 9 | 37.8°F | January 4 | 38.7°F |
| January 8 | 38.5°F | January 3 | 39.2°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
January
January
| 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: 11:54
January 12, monday
1200

27°F
E
19 mph
19 mph
1500

32°F
E
17 mph
17 mph
1800

30°F
E
14 mph
14 mph
2100

30°F
E
12 mph
12 mph
January 13, tuesday
0000

30°F
E
11 mph
11 mph
0300

30°F
E
8 mph
8 mph
0600

30°F
E
7 mph
7 mph
0900

34°F
NE
6 mph
6 mph



























