World Resorts USA Duluth Weather

Duluth Sea Temperature in December

Average sea water temperature in December:
+37.1°F
Minimum sea water temperature in December: 42.8°F
Maximum sea water temperature in December: 32.0°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 38.0°F. The highest and lowest sea temperatures during the month were 42.3°F and 34.3°F.

Monthly sea water temperature in Duluth, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
West Palm Beach 79.0°F 78.4°F
Molokai 78.7°F 78.2°F
Fort Lauderdale 78.7°F 77.6°F
Honolulu 78.6°F 78.3°F
Hawaii 78.5°F 78.3°F
Kauai 78.2°F 76.0°F
Hilo 78.0°F 78.0°F
Maui 78.0°F 77.8°F
Miami Beach 77.4°F 75.9°F
Oahu 77.1°F 77.2°F
Key West 75.9°F 72.6°F
Miami 75.5°F 73.0°F
Naples 71.5°F 67.7°F
Cocoa Beach 69.7°F 66.6°F
Siesta Key 69.3°F 65.6°F
Sarasota 69.2°F 65.6°F
Tampa 68.3°F 65.5°F
Orlando 67.6°F 66.0°F
St. Petersburg 67.5°F 64.3°F
Corpus Christi 67.5°F 66.5°F

Best time for vacation in Duluth

Sunniest months:
September 14 days
August 13 days
July 12 days
Warmest months:
July 74.7 °F
August 73.8 °F
June 67.8 °F
Warmest sea temp:
August 65.9 °F
July 63.8 °F
September 62.4 °F
Coldest months:
January 17.9 °F
February 20.0 °F
December 24.2 °F
Rainiest months:
August 3 days
July 3 days
June 2 days
Windiest months:
April 8.8 mph
March 8.4 mph
November 8.3 mph

Duluth on a weather map

Duluth
+73°F
W 9 mph
Feels like: +77°F
Precip.: 2%
Places in USA:
Name
°F
+68°F
+79°F
+102°F
+70°F
+84°F
+84°F
+75°F
+81°F
+77°F
+68°F
+59°F
+86°F
+82°F
+88°F
+70°F
24 Hours Forecast
Duluth
Local time: 19:19
June 26, friday
2100
64°F
SW
9 mph
June 27, saturday
0000
63°F
SW
6 mph
0300
61°F
W
6 mph
0600
55°F
SW
6 mph
0900
61°F
W
6 mph
1200
66°F
W
8 mph
1500
66°F
W
11 mph
1800
63°F
W
11 mph
Units of measurement: °C / °F