World Resorts USA Duluth Weather

Duluth Sea Temperature in August

Average sea water temperature in August:
+65.7°F
Minimum sea water temperature in August: 71.4°F
Maximum sea water temperature in August: 53.2°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 67.5°F. The highest and lowest sea temperatures during the month were 71.1°F and 62.6°F.

Monthly sea water temperature in Duluth, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Key West 88.8°F 87.8°F
Naples 88.7°F 87.0°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
West Palm Beach 86.8°F 86.2°F
Cocoa Beach 86.8°F 84.5°F
Pensacola Beach 86.6°F 87.4°F
St. George Island 86.5°F 86.8°F
Panama City Beach 86.2°F 86.8°F
Destin 86.0°F 86.9°F
Fort Walton Beach 86.0°F 86.8°F
Santa Rosa Beach 85.9°F 86.8°F
Hilton Head Island 85.0°F 84.0°F
Jacksonville 84.9°F 82.9°F
Orlando 84.9°F 83.4°F

Best time for vacation in Duluth

Sunniest months:
September 14 days
July 13 days
August 13 days
Warmest months:
July 74.8 °F
August 73.8 °F
June 67.9 °F
Warmest sea temp:
August 65.9 °F
July 63.9 °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
+64°F
SW 6 mph
Feels like: +64°F
Precip.: 8%
Places in USA:
Name
°F
+72°F
+77°F
+77°F
+75°F
+68°F
+86°F
+72°F
+81°F
+75°F
+64°F
+59°F
+68°F
+82°F
+79°F
+73°F
24 Hours Forecast
Duluth
Local time: 06:49
August 14, friday
0900
66°F
W
8 mph
1200
72°F
W
11 mph
1500
73°F
W
14 mph
1800
70°F
SW
17 mph
2100
64°F
SW
14 mph
August 15, saturday
0000
64°F
W
11 mph
0300
61°F
SW
7 mph
0600
61°F
W
8 mph
Units of measurement: °C / °F