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
Kailua Kona 79.2°F 78.3°F
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
South Padre Island 71.8°F 71.9°F
Naples 71.5°F 67.7°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
St. Petersburg 67.5°F 64.3°F
Corpus Christi 67.5°F 66.5°F
Daytona Beach 67.1°F 65.8°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 74.8 °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
+84°F
N 15 mph
Feels like: +97°F
Precip.: 14%
Places in USA:
Name
°F
+88°F
+91°F
+77°F
+100°F
+77°F
+90°F
+72°F
+91°F
+82°F
+73°F
+64°F
+77°F
+93°F
+95°F
+84°F
24 Hours Forecast
Sea Isle City
Local time: 12:36
July 21, tuesday
1500
79°F
N
19 mph
1800
81°F
N
19 mph
2100
73°F
NE
19 mph
July 22, wednesday
0000
73°F
NE
14 mph
0300
73°F
NE
16 mph
0600
73°F
NE
16 mph
0900
77°F
NE
13 mph
1200
79°F
NE
13 mph
Units of measurement: °C / °F