World Resorts USA Sea Isle City Weather

Sea Isle City Sea Temperature in December

Average sea water temperature in December:
+47.0°F
Minimum sea water temperature in December: 55.9°F
Maximum sea water temperature in December: 40.3°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 44.7°F. The highest and lowest sea temperatures during the month were 50.9°F and 41.7°F.

Monthly sea water temperature in Sea Isle City, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
West Palm Beach 79.0°F 78.4°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
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
Pensacola Beach 65.2°F 66.7°F
Santa Rosa Beach 65.0°F 66.0°F

Best time for vacation in Sea Isle City

Sunniest months:
November 18 days
October 15 days
June 15 days
Warmest months:
July 81.1 °F
August 78.9 °F
June 75.2 °F
Warmest sea temp:
July 74.7 °F
August 74.3 °F
September 72.9 °F
Coldest months:
January 39.7 °F
February 41.5 °F
December 44.6 °F
Rainiest months:
July 3 days
October 2 days
April 2 days
Windiest months:
January 11.7 mph
March 11.7 mph
December 11.2 mph

Sea Isle City on a weather map

Sea Isle City
+75°F
E 6 mph
Feels like: +79°F
Precip.: 12%
Places in USA:
Name
°F
+72°F
+81°F
+79°F
+86°F
+70°F
+81°F
+75°F
+81°F
+75°F
+70°F
+59°F
+68°F
+81°F
+81°F
+70°F
24 Hours Forecast
Sea Isle City
Local time: 00:03
August 14, friday
0300
75°F
SE
5 mph
0600
75°F
SW
5 mph
0900
77°F
SW
7 mph
1200
81°F
W
6 mph
1500
77°F
NW
6 mph
1800
79°F
N
4 mph
2100
75°F
N
1 mph
August 15, saturday
0000
73°F
NE
3 mph
Units of measurement: °C / °F