World Resorts USA Dennis Port Weather

Dennis Port Sea Temperature in December

Average sea water temperature in December:
+43.8°F
Minimum sea water temperature in December: 50.9°F
Maximum sea water temperature in December: 35.6°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 41.1°F. The highest and lowest sea temperatures during the month were 46.6°F and 35.6°F.

Monthly sea water temperature in Dennis Port, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
West Palm Beach 79.0°F 78.4°F
Fort Lauderdale 78.7°F 77.6°F
Honolulu 78.6°F 78.3°F
Hawaii 78.5°F 78.3°F
Kauai 78.2°F 76.0°F
Maui 78.0°F 77.8°F
Miami Beach 77.4°F 75.9°F
Oahu 77.1°F 77.2°F
Key West 75.9°F 72.6°F
Miami 75.5°F 73.0°F
Naples 71.5°F 67.7°F
Cocoa Beach 69.7°F 66.6°F
Siesta Key 69.3°F 65.6°F
Sarasota 69.2°F 65.6°F
Tampa 68.3°F 65.5°F
Orlando 67.6°F 66.0°F
Daytona Beach 67.1°F 65.8°F
Clearwater Beach 66.8°F 62.9°F
Fort Walton Beach 66.0°F 67.1°F
Destin 65.7°F 66.5°F

Best time for vacation in Dennis Port

Sunniest months:
November 15 days
June 14 days
August 13 days
Warmest months:
July 76.2 °F
August 74.7 °F
June 69.8 °F
Warmest sea temp:
August 72.9 °F
July 71.9 °F
September 69.0 °F
Coldest months:
January 36.2 °F
February 36.5 °F
December 41.6 °F
Rainiest months:
October 3 days
January 2 days
April 2 days
Windiest months:
January 14.2 mph
December 14.1 mph
March 14.0 mph

Dennis Port on a weather map

Dennis Port
+70°F
N 11 mph
Feels like: +70°F
Precip.: 10%
Places in USA:
Name
°F
+72°F
+81°F
+79°F
+90°F
+70°F
+79°F
+75°F
+79°F
+75°F
+72°F
+57°F
+68°F
+79°F
+82°F
+72°F
24 Hours Forecast
Dennis Port
Local time: 23:02
August 13, thursday
0000
70°F
N
11 mph
0300
72°F
E
11 mph
0600
70°F
E
12 mph
0900
68°F
N
11 mph
1200
72°F
NE
19 mph
1500
72°F
NE
18 mph
1800
75°F
NE
11 mph
2100
73°F
E
11 mph
Units of measurement: °C / °F