World Resorts USA Boston Weather

Boston Sea Temperature in May

Average sea water temperature in May:
+52.0°F
Minimum sea water temperature in May: 63.1°F
Maximum sea water temperature in May: 43.7°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 53.0°F. The highest and lowest sea temperatures during the month were 56.8°F and 48.4°F.

Monthly sea water temperature in Boston, °F

Which USA resorts have warmest sea in May?

Place name May 2025 May 2024
Everglades 84.5°F 84.6°F
Islamorada 83.6°F 84.4°F
Key West 83.5°F 84.6°F
Naples 83.5°F 83.8°F
Marco Island 83.5°F 84.0°F
Key Largo 83.5°F 84.1°F
Cape Coral 83.4°F 83.6°F
Sarasota 82.7°F 82.9°F
Tampa 82.7°F 82.5°F
Clearwater Beach 82.6°F 82.5°F
Miami 82.6°F 83.3°F
Siesta Key 82.5°F 82.6°F
Miami Beach 82.4°F 83.0°F
Fort Lauderdale 81.1°F 81.7°F
Corpus Christi 80.9°F 81.0°F
Pensacola 80.1°F 79.4°F
South Padre Island 80.0°F 81.1°F
Houston 79.5°F 78.9°F
New Orleans 79.5°F 79.9°F
Cocoa Beach 79.4°F 80.0°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 39.4 °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
+12°F
SE 11 mph
Feels like: +1°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+41°F
+52°F
+70°F
+77°F
+70°F
+21°F
+54°F
+46°F
+61°F
+61°F
+45°F
+3°F
24 Hours Forecast
Boston
Local time: 02:43
December 05, friday
0300
12°F
SE
11 mph
0600
10°F
SE
7 mph
0900
14°F
E
4 mph
1200
23°F
NE
6 mph
1500
27°F
NE
8 mph
1800
25°F
NE
6 mph
2100
23°F
NE
6 mph
December 06, saturday
0000
23°F
NE
5 mph
Units of measurement: °C / °F