Average sea water temperature in September:
+64.4°F
| Minimum sea water temperature in September: | 71.6°F |
| Maximum sea water temperature in September: | 58.6°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 63.7°F. The highest and lowest sea temperatures during the month were 66.7°F and 60.1°F.
Monthly sea water temperature in Boston, °F
Which USA resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Key West | 86.9°F | 87.4°F |
| Fort Lauderdale | 86.4°F | 86.4°F |
| West Palm Beach | 86.2°F | 86.4°F |
| Miami Beach | 86.1°F | 86.3°F |
| Naples | 86.1°F | 87.2°F |
| South Padre Island | 86.0°F | 85.8°F |
| Corpus Christi | 85.8°F | 84.7°F |
| Miami | 85.8°F | 86.0°F |
| Houston | 84.9°F | 83.4°F |
| Siesta Key | 84.9°F | 86.8°F |
| Sarasota | 84.8°F | 86.7°F |
| Cocoa Beach | 84.6°F | 85.2°F |
| Tampa | 84.3°F | 86.0°F |
| New Orleans | 84.3°F | 82.9°F |
| Orange Beach | 84.0°F | 84.1°F |
| Clearwater Beach | 84.0°F | 86.2°F |
| Bay Saint Louis | 84.0°F | 83.1°F |
| Pensacola Beach | 83.9°F | 84.5°F |
| Pensacola | 83.9°F | 84.2°F |
| St. George Island | 83.5°F | 84.0°F |
Best time for vacation in Boston
Boston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boston
Local time: 16:55
September 14, monday
1800
68°F
SE
10 mph
10 mph
2100
63°F
SE
7 mph
7 mph
September 15, tuesday
0000
59°F
SW
6 mph
6 mph
0300
57°F
S
9 mph
9 mph
0600
55°F
SW
8 mph
8 mph
0900
61°F
SW
9 mph
9 mph
1200
63°F
SW
6 mph
6 mph
1500
64°F
W
7 mph
7 mph
