World Resorts USA Duluth Weather

Duluth Sea Temperature in July

Average sea water temperature in July:
+63.8°F
Minimum sea water temperature in July: 72.1°F
Maximum sea water temperature in July: 48.6°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 63.4°F. The highest and lowest sea temperatures during the month were 71.2°F and 58.1°F.

Monthly sea water temperature in Duluth, °F

Which USA resorts have warmest sea in July?

Place name July 2025 July 2024
New Orleans 87.4°F 87.1°F
Pass Christian 87.3°F 86.7°F
Bay Saint Louis 87.2°F 86.7°F
Clearwater Beach 87.1°F 88.3°F
St. Petersburg 87.0°F 88.0°F
Sarasota 86.9°F 87.9°F
Sanibel Island 86.9°F 87.7°F
Siesta Key 86.9°F 87.9°F
Pensacola 86.9°F 87.3°F
Tampa 86.8°F 87.4°F
Key West 86.7°F 87.6°F
Orange Beach 86.7°F 86.7°F
Pensacola Beach 86.7°F 87.1°F
Marco Island 86.6°F 87.4°F
Naples 86.6°F 87.2°F
Galveston 86.4°F 86.3°F
Islamorada 86.4°F 87.4°F
Galveston Island 86.4°F 86.4°F
Miami 86.3°F 86.9°F
Panama City Beach 86.3°F 86.8°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 24.3 °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
+36°F
NE 2 mph
Feels like: +34°F
Precip.: 64%
Places in USA:
Name
°F
+36°F
+75°F
+75°F
+59°F
+59°F
+70°F
+75°F
+70°F
+28°F
+57°F
+52°F
+66°F
+66°F
+70°F
+41°F
24 Hours Forecast
Duluth
Local time: 20:17
December 27, saturday
2100
36°F
NE
2 mph
December 28, sunday
0000
36°F
S
1 mph
0300
36°F
S
4 mph
0600
36°F
S
5 mph
0900
32°F
SE
6 mph
1200
30°F
SE
13 mph
1500
23°F
S
19 mph
1800
19°F
S
17 mph
Units of measurement: °C / °F