World Resorts USA Boston Weather

Boston Sea Temperature in August

Average sea water temperature in August:
+67.6°F
Minimum sea water temperature in August: 74.5°F
Maximum sea water temperature in August: 62.2°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 67.2°F. The highest and lowest sea temperatures during the month were 70.5°F and 64.9°F.

Monthly sea water temperature in Boston, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Sanibel Island 88.8°F 87.3°F
Everglades 88.8°F 87.0°F
Islamorada 88.8°F 87.3°F
Key West 88.8°F 87.8°F
Key Largo 88.7°F 87.3°F
Marco Island 88.7°F 87.1°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Galveston 87.9°F 88.3°F
Galveston Island 87.8°F 88.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F

Best time for vacation in Boston

Sunniest months:
August 16 days
July 15 days
November 14 days
Warmest months:
July 81.9 °F
August 80.3 °F
June 74.2 °F
Warmest sea temp:
August 67.6 °F
July 66.8 °F
September 64.3 °F
Coldest months:
January 33.3 °F
February 34.8 °F
December 39.2 °F
Rainiest months:
April 5 days
May 4 days
October 4 days
Windiest months:
January 10.8 mph
March 10.7 mph
February 10.5 mph

Boston on a weather map

Boston
+19°F
W 2 mph
Feels like: +12°F
Precip.: 95%
Places in USA:
Name
°F
+39°F
+73°F
+73°F
+57°F
+55°F
+66°F
+72°F
+68°F
+32°F
+59°F
+50°F
+61°F
+61°F
+72°F
+41°F
24 Hours Forecast
Boston
Local time: 22:37
December 27, saturday
0000
19°F
W
2 mph
0300
16°F
SW
6 mph
0600
16°F
S
8 mph
0900
23°F
S
11 mph
1200
27°F
S
9 mph
1500
28°F
S
6 mph
1800
28°F
S
3 mph
2100
25°F
SE
3 mph
Units of measurement: °C / °F