Average sea water temperature in September:
+58.4°F
| Minimum sea water temperature in September: | 64.8°F |
| Maximum sea water temperature in September: | 55.0°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 57.9°F. The highest and lowest sea temperatures during the month were 60.4°F and 55.6°F.
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| Bar Harbor |
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| Bar Harbor |
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| Bar Harbor |
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| Bar Harbor |
Monthly sea water temperature in Bar Harbor, °F
Which USA resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Key West | 88.7°F | 86.9°F |
| Naples | 88.0°F | 86.1°F |
| Siesta Key | 87.8°F | 84.9°F |
| Sarasota | 87.8°F | 84.8°F |
| Houston | 87.4°F | 84.9°F |
| Corpus Christi | 87.4°F | 85.8°F |
| Tampa | 87.2°F | 84.3°F |
| Clearwater Beach | 87.1°F | 84.0°F |
| West Palm Beach | 86.8°F | 86.2°F |
| New Orleans | 86.8°F | 84.3°F |
| Fort Lauderdale | 86.7°F | 86.4°F |
| Miami Beach | 86.5°F | 86.1°F |
| Panama City Beach | 86.4°F | 83.4°F |
| Pensacola Beach | 86.3°F | 83.9°F |
| Orange Beach | 86.3°F | 84.0°F |
| Pensacola | 86.3°F | 83.9°F |
| Fort Walton Beach | 86.3°F | 83.3°F |
| Destin | 86.2°F | 83.1°F |
| Santa Rosa Beach | 86.2°F | 83.4°F |
| Miami | 86.0°F | 85.8°F |
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: 03:52
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
