World Resorts USA Nantucket Weather

Nantucket Sea Temperature in October

Average sea water temperature in October:
+61.4°F
Minimum sea water temperature in October: 68.5°F
Maximum sea water temperature in October: 55.6°F

Daily sea water temperature in October, °F

Show year:
2026
2025
2024

The average sea water temperature in October of 2026 was 59.2°F. The highest and lowest sea temperatures during the month were 62.4°F and 55.6°F.

Monthly sea water temperature in Nantucket, °F

Which USA resorts have warmest sea in October?

Place name October 2026 October 2025
West Palm Beach 84.4°F 83.5°F
Fort Lauderdale 84.2°F 83.5°F
Miami Beach 83.8°F 83.4°F
Key West 83.6°F 83.8°F
South Padre Island 82.8°F 84.0°F
Miami 82.8°F 82.7°F
Kailua Kona 81.9°F 80.9°F
Naples 81.9°F 81.9°F
Corpus Christi 81.1°F 82.2°F
Siesta Key 80.7°F 80.4°F
Honolulu 80.6°F 80.7°F
Hawaii 80.5°F 80.6°F
Sarasota 80.4°F 80.2°F
Kauai 80.2°F 81.3°F
Oahu 80.0°F 79.8°F
Maui 80.0°F 79.8°F
Galveston 79.7°F 80.8°F
Houston 79.6°F 80.4°F
Panama City Beach 79.5°F 79.2°F
Tampa 79.3°F 79.4°F

Best time for vacation in Nantucket

Sunniest months:
June 14 days
October 13 days
July 12 days
Warmest months:
August 71.7 °F
July 71.5 °F
September 67.1 °F
Warmest sea temp:
August 71.9 °F
July 70.0 °F
September 68.4 °F
Coldest months:
February 36.1 °F
January 36.4 °F
March 40.7 °F
Rainiest months:
January 3 days
October 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
+46°F
S 14 mph
Feels like: +41°F
Precip.: 13%
Places in USA:
Name
°F
+34°F
+37°F
+70°F
+61°F
+61°F
+64°F
+63°F
+39°F
+63°F
+55°F
+61°F
+59°F
+55°F
+63°F
+37°F
24 Hours Forecast
Nantucket
Local time: 01:58
November 14, saturday
0300
46°F
S
14 mph
0600
46°F
SE
15 mph
0900
45°F
SE
14 mph
1200
45°F
SE
12 mph
1500
46°F
SE
13 mph
1800
46°F
SE
16 mph
2100
46°F
SE
18 mph
November 15, sunday
0000
45°F
SE
18 mph
Units of measurement: °C / °F