Measurements:
°C
°F
Duluth
12°F
N 6 mph
Feels like: 0°F
Precip: 0%
World Resorts USA Duluth Weather

Duluth Sea Water Temperature

Current Sea Water Temperature:
+36.4°F
Maximum Sea Water Temperature in December: 42.0°F
Minimum Sea Water Temperature in December: 30.0°F
Average water temperature in December: 35.6°F

Sea Water Temperature for the Last 10 Days:

December 22 36.4°F December 17 36.2°F
December 21 36.2°F December 16 36.2°F
December 20 36.4°F December 15 36.0°F
December 19 36.2°F December 14 36.0°F
December 18 36.2°F December 13 35.6°F

When is the Warmest Sea for Duluth?

According to our data for the last three years for Duluth the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Duluth was 68.7°F. The maximum and minimum values were 64.4°F and 73.8°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Duluth was 68.3°F. The maximum and minimum values were 60.4°F and 74.6°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Duluth was 67.0°F. The maximum and minimum values were 64.6°F and 69.8°F respectively.

Best Time to Visit Duluth
The most sunny months:
September 15 days
August 14 days
July 13 days
The most warm months:
July 76.9 °F
August 76.5 °F
June 70.9 °F
Warmest sea temperature:
August 67.3 °F
July 65.5 °F
September 64.1 °F
The most cold months:
February 15.3 °F
January 15.5 °F
December 22.5 °F
The most rainy months:
August 3 days
June 3 days
July 3 days
The most windy months:
April 9 mph
March 8 mph
November 8 mph

Duluth on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
Duluth
Local time: 04:47
22 dec, sunday
0600 12°F
N
6 mph
0900 14°F
N
6 mph
1200 20°F
N
9 mph
1500 22°F
N
7 mph
1800 22°F
NW
4 mph
2100 22°F
NW
2 mph
23 dec, monday
0000 22°F
NW
2 mph
0300 24°F
SW
2 mph