World Resorts USA Nantucket Weather

Nantucket Sea Temperature in January

Average sea water temperature in January:
+40.4°F
Minimum sea water temperature in January: 45.3°F
Maximum sea water temperature in January: 33.8°F

Daily sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 36.9°F. The highest and lowest sea temperatures during the month were 41.9°F and 33.8°F.

Monthly sea water temperature in Nantucket, °F

Which USA resorts have warmest sea in January?

Place name January 2025 January 2024
Kailua Kona 78.2°F 77.6°F
Honolulu 77.6°F 76.6°F
Hawaii 77.5°F 76.5°F
Maui 76.9°F 76.8°F
Oahu 76.5°F 75.6°F
West Palm Beach 75.5°F 76.5°F
Fort Lauderdale 75.1°F 75.9°F
Kauai 75.0°F 76.0°F
Miami Beach 73.1°F 74.8°F
Islamorada 71.3°F 74.0°F
Key Largo 71.1°F 73.8°F
Miami 70.7°F 73.1°F
Key West 70.3°F 72.7°F
Everglades 68.6°F 71.6°F
South Padre Island 66.7°F 64.8°F
Marco Island 65.2°F 67.2°F
Naples 64.7°F 66.8°F
Sanibel Island 63.7°F 65.6°F
Fort Walton Beach 61.8°F 58.9°F
Corpus Christi 61.6°F 60.3°F

Best time for vacation in Nantucket

Sunniest months:
June 13 days
September 13 days
October 13 days
Warmest months:
August 70.9 °F
July 70.6 °F
September 67.1 °F
Warmest sea temp:
August 72.0 °F
July 70.1 °F
September 68.5 °F
Coldest months:
February 36.5 °F
January 36.9 °F
March 40.4 °F
Rainiest months:
January 4 days
October 4 days
December 3 days
Windiest months:
March 19.1 mph
January 19.0 mph
December 18.9 mph

Nantucket on a weather map

Nantucket
+21°F
E 17 mph
Feels like: +10°F
Precip.: 0%
Places in USA:
Name
°F
+28°F
+72°F
+72°F
+48°F
+55°F
+46°F
+59°F
+66°F
+19°F
+61°F
+54°F
+46°F
+48°F
+63°F
+14°F
24 Hours Forecast
Nantucket
Local time: 06:47
January 02, friday
0900
23°F
E
22 mph
1200
27°F
E
19 mph
1500
28°F
E
25 mph
1800
30°F
E
22 mph
2100
28°F
E
21 mph
January 03, saturday
0000
30°F
E
21 mph
0300
30°F
E
20 mph
0600
30°F
E
21 mph
Units of measurement: °C / °F