World Resorts USA Duluth Weather

Duluth Sea Temperature in December

Average sea water temperature in December:
+37.2°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 38.6°F. The highest and lowest sea temperatures during the month were 42.3°F and 35.1°F.

Monthly sea water temperature in Duluth, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Kailua Kona 79.3°F 78.3°F
West Palm Beach 79.1°F 78.4°F
Fort Lauderdale 78.8°F 77.6°F
Honolulu 78.7°F 78.3°F
Hawaii 78.6°F 78.3°F
Kauai 78.3°F 76.0°F
Maui 78.1°F 77.8°F
Miami Beach 77.7°F 75.9°F
Oahu 77.2°F 77.2°F
Islamorada 76.8°F 73.4°F
Key Largo 76.7°F 73.1°F
Key West 76.2°F 72.6°F
Miami 76.0°F 73.0°F
Everglades 74.0°F 69.7°F
Marco Island 72.0°F 68.0°F
Naples 71.6°F 67.7°F
South Padre Island 71.4°F 71.9°F
Cape Coral 71.4°F 67.8°F
Sanibel Island 71.0°F 67.1°F
Cocoa Beach 69.5°F 66.6°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 68.5 °F
Warmest sea temp:
August 65.9 °F
July 63.8 °F
September 62.4 °F
Coldest months:
January 18.5 °F
February 18.9 °F
December 25.2 °F
Rainiest months:
June 3 days
August 3 days
July 3 days
Windiest months:
April 8.9 mph
March 8.4 mph
November 8.3 mph

Duluth on a weather map

Duluth
+32°F
E 1 mph
Feels like: +28°F
Precip.: 73%
Places in USA:
Name
°F
+32°F
+72°F
+72°F
+45°F
+59°F
+64°F
+68°F
+64°F
+21°F
+55°F
+48°F
+61°F
+59°F
+68°F
+43°F
24 Hours Forecast
Duluth
Local time: 07:11
December 26, friday
0900
34°F
E
3 mph
1200
34°F
SE
5 mph
1500
34°F
SE
7 mph
1800
30°F
SE
6 mph
2100
27°F
S
3 mph
December 27, saturday
0000
25°F
W
2 mph
0300
25°F
N
6 mph
0600
27°F
W
4 mph
Units of measurement: °C / °F