Current sea water temperature:
+55.6°F
| Minimum sea water temperature in September: | 64.8°F |
| Maximum sea water temperature in September: | 55.0°F |
| Average sea water temperature in September: | 58.4°F |
| more information | |
14 days
forecast
forecast
| Bar Harbor |
monthly
weather
weather
| Bar Harbor |
Sea water temperature for the last 10 days:
| September 16 | 55.6°F | September 11 | 57.7°F |
| September 15 | 56.7°F | September 10 | 57.2°F |
| September 14 | 57.4°F | September 9 | 57.6°F |
| September 13 | 56.5°F | September 8 | 57.6°F |
| September 12 | 57.2°F | September 7 | 57.9°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 60.6°F. The highest and lowest sea temperatures during the month were 63.5°F and 58.3°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 57.6°F. The highest and lowest sea temperatures during the month were 60.8°F and 54.1°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 58.0°F. The highest and lowest sea temperatures during the month were 60.4°F and 55.6°F.
current
weather
weather
| Bar Harbor |
weather in
September
September
| 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: 03:08
September 17, thursday
0600
57°F
S
5 mph
5 mph
0900
63°F
SW
5 mph
5 mph
1200
66°F
NW
6 mph
6 mph
1500
64°F
NW
6 mph
6 mph
1800
59°F
N
4 mph
4 mph
2100
59°F
N
4 mph
4 mph
September 18, friday
0000
59°F
NE
3 mph
3 mph
0300
61°F
E
4 mph
4 mph
