World Resorts USA Boston Weather

Boston Sea Temperature in September

Average sea water temperature in September:
+64.3°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:
2026
2025
2024

The average sea water temperature in September of 2026 was 64.6°F. The highest and lowest sea temperatures during the month were 68.7°F and 60.1°F.

Monthly sea water temperature in Boston, °F

Which USA resorts have warmest sea in September?

Place name September 2026 September 2025
Key West 87.8°F 86.9°F
Key Largo 87.2°F 86.6°F
Naples 87.0°F 86.1°F
Galveston 87.0°F 85.5°F
Houston 86.9°F 84.9°F
Siesta Key 86.9°F 84.9°F
Corpus Christi 86.8°F 85.8°F
Sarasota 86.8°F 84.8°F
West Palm Beach 86.6°F 86.2°F
Fort Lauderdale 86.6°F 86.4°F
New Orleans 86.4°F 84.3°F
Cape Coral 86.3°F 85.2°F
Orange Beach 86.0°F 84.0°F
Pensacola Beach 85.9°F 83.9°F
Tampa 85.9°F 84.3°F
Clearwater Beach 85.9°F 84.0°F
Miami Beach 85.8°F 86.1°F
Panama City Beach 85.8°F 83.4°F
Fort Walton Beach 85.7°F 83.3°F
Pensacola 85.7°F 83.9°F

Best time for vacation in Boston

Sunniest months:
August 16 days
July 15 days
November 14 days
Warmest months:
July 82.1 °F
August 80.6 °F
June 74.6 °F
Warmest sea temp:
August 67.6 °F
July 66.8 °F
September 64.3 °F
Coldest months:
January 33.2 °F
February 34.6 °F
December 39.2 °F
Rainiest months:
April 5 days
June 4 days
October 4 days
Windiest months:
January 10.7 mph
March 10.6 mph
February 10.3 mph

Boston on a weather map

Boston
+55°F
SE 2 mph
Feels like: +57°F
Precip.: 13%
Places in USA:
Name
°F
+55°F
+61°F
+77°F
+82°F
+88°F
+84°F
+70°F
+70°F
+59°F
+82°F
+66°F
+82°F
+79°F
+64°F
24 Hours Forecast
Boston
Local time: 22:33
October 05, monday
0000
55°F
SE
2 mph
0300
54°F
SE
4 mph
0600
52°F
NE
4 mph
0900
57°F
NE
9 mph
1200
68°F
E
15 mph
1500
66°F
E
16 mph
1800
61°F
E
11 mph
2100
55°F
SE
14 mph
Units of measurement: °C / °F