Measurements:
°C
°F
Duluth
46°F
SE 3 mph
Feels like: 42°F
Precip: 100%
World Resorts USA Duluth Weather

Duluth Sea Water Temperature

Current Sea Water Temperature:
+39.4°F
Maximum Sea Water Temperature in April: 48.2°F
Minimum Sea Water Temperature in April: 30.2°F
Average water temperature in April: 35.6°F

Sea Water Temperature for the Last 10 Days:

April 27 39.4°F April 22 43.8°F
April 26 38.4°F April 21 43.4°F
April 25 38.2°F April 20 45.0°F
April 24 41.0°F April 19 45.8°F
April 23 43.4°F April 18 45.8°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: 2023 2022 2021

The average sea surface temperature in August 2023 for Duluth was 67.2°F. The maximum and minimum values were 64.6°F and 71.8°F respectively.

Sea Water Temperature in July

Select Year: 2023 2022 2021

The average sea surface temperature in July 2023 for Duluth was 63.6°F. The maximum and minimum values were 59.8°F and 69.0°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Duluth was 66.4°F. The maximum and minimum values were 60.6°F and 71.6°F respectively.

Best Time to Visit Duluth
The most sunny months:
August 15 days
September 15 days
July 12 days
The most warm months:
August 76.8 °F
July 76.8 °F
June 72.1 °F
Warmest sea temperature:
August 66.9 °F
July 64.8 °F
September 63.4 °F
The most cold months:
February 15.3 °F
January 15.5 °F
December 22.5 °F
The most rainy months:
August 4 days
June 3 days
July 3 days
The most windy months:
April 9 mph
March 8 mph
November 7 mph

Duluth on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +76
Honolulu +76
Houston +88
Las Vegas +66
Los Angeles +64
Miami +80
New York +56
Orlando +82
San Diego +62
San Francisco +54
Sarasota +84
Tampa +86
Washington +56
24 Hours Weather Forecast
Duluth
Local time: 11:57
27 apr, saturday
1200 46°F
SE
3 mph
1500 46°F
SE
9 mph
1800 46°F
SE
9 mph
2100 40°F
S
7 mph
28 apr, sunday
0000 38°F
S
9 mph
0300 38°F
SW
9 mph
0600 36°F
SW
14 mph
0900 34°F
W
17 mph