World Resorts USA Duluth Weather

Duluth Sea Temperature in May

Average sea water temperature in May:
+41.9°F
Minimum sea water temperature in May: 55.2°F
Maximum sea water temperature in May: 34.2°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 42.6°F. The highest and lowest sea temperatures during the month were 47.5°F and 37.0°F.

Monthly sea water temperature in Duluth, °F

Which USA resorts have warmest sea in May?

Place name May 2026 May 2025
Key West 84.3°F 83.5°F
Key Largo 84.0°F 83.5°F
Miami 83.3°F 82.6°F
Cape Coral 83.3°F 83.4°F
Naples 82.9°F 83.5°F
Miami Beach 82.7°F 82.4°F
Tampa 81.9°F 82.7°F
West Palm Beach 81.7°F 81.1°F
Fort Lauderdale 81.7°F 81.1°F
Clearwater Beach 81.5°F 82.6°F
Sarasota 81.5°F 82.7°F
Siesta Key 81.3°F 82.5°F
Port St. Lucie 80.8°F 78.9°F
Cocoa Beach 80.4°F 79.4°F
Corpus Christi 79.5°F 80.9°F
Kailua Kona 79.4°F 79.1°F
Galveston 78.4°F 79.6°F
Orlando 78.4°F 77.2°F
Houston 78.4°F 79.5°F
Daytona Beach 78.1°F 76.0°F

Best time for vacation in Duluth

Sunniest months:
August 14 days
July 13 days
May 12 days
Warmest months:
July 74.8 °F
August 73.2 °F
June 67.9 °F
Warmest sea temp:
August 65.7 °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
+46°F
E 14 mph
Feels like: +41°F
Precip.: 4%
Places in USA:
Name
°F
+63°F
+66°F
+77°F
+66°F
+68°F
+84°F
+70°F
+64°F
+68°F
+59°F
+68°F
+82°F
+82°F
+81°F
+66°F
24 Hours Forecast
Duluth
Local time: 12:23
October 29, thursday
1500
50°F
E
13 mph
1800
46°F
SE
8 mph
2100
43°F
E
5 mph
October 30, friday
0000
39°F
E
4 mph
0300
39°F
E
3 mph
0600
37°F
E
3 mph
0900
39°F
NE
2 mph
1200
46°F
NE
2 mph
Units of measurement: °C / °F