World Resorts USA Nantucket Weather

Nantucket Sea Temperature in April

Average sea water temperature in April:
+45.8°F
Minimum sea water temperature in April: 50.7°F
Maximum sea water temperature in April: 40.6°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 45.4°F. The highest and lowest sea temperatures during the month were 48.7°F and 40.6°F.

Monthly sea water temperature in Nantucket, °F

Which USA resorts have warmest sea in April?

Place name April 2026 April 2025
West Palm Beach 78.2°F 78.3°F
Key West 78.2°F 78.0°F
Fort Lauderdale 78.1°F 78.0°F
Miami Beach 78.0°F 78.3°F
Miami 77.5°F 77.9°F
Honolulu 76.5°F 77.4°F
Hawaii 76.2°F 77.3°F
Maui 75.9°F 76.6°F
Kauai 75.9°F 74.9°F
Naples 75.8°F 77.0°F
Tampa 75.3°F 76.6°F
Cocoa Beach 75.0°F 75.1°F
Oahu 74.9°F 76.4°F
Clearwater Beach 74.7°F 75.6°F
Houston 74.5°F 73.7°F
Sarasota 74.2°F 76.0°F
New Orleans 72.6°F 72.1°F
Orlando 72.3°F 72.8°F
St. George Island 72.3°F 72.8°F
Pensacola Beach 71.7°F 72.5°F

Best time for vacation in Nantucket

Sunniest months:
June 14 days
September 13 days
October 13 days
Warmest months:
July 71.5 °F
August 70.9 °F
September 67.1 °F
Warmest sea temp:
August 71.9 °F
July 70.0 °F
September 68.5 °F
Coldest months:
February 36.1 °F
January 36.4 °F
March 40.7 °F
Rainiest months:
October 4 days
January 3 days
December 3 days
Windiest months:
January 19.0 mph
March 19.0 mph
December 18.9 mph

Nantucket on a weather map

Nantucket
+77°F
E 19 mph
Feels like: +81°F
Precip.: 5%
Places in USA:
Name
°F
+81°F
+86°F
+79°F
+106°F
+95°F
+91°F
+64°F
+84°F
+79°F
+90°F
+66°F
+81°F
+95°F
+102°F
+79°F
24 Hours Forecast
Nantucket
Local time: 16:17
August 25, tuesday
1800
77°F
NE
19 mph
2100
70°F
E
19 mph
August 26, wednesday
0000
68°F
E
14 mph
0300
70°F
E
14 mph
0600
70°F
E
12 mph
0900
68°F
SE
13 mph
1200
70°F
E
9 mph
1500
70°F
E
9 mph
Units of measurement: °C / °F