World Resorts USA Seaside Weather

Seaside Sea Temperature in December

Average sea water temperature in December:
+50.7°F
Minimum sea water temperature in December: 53.4°F
Maximum sea water temperature in December: 47.7°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 52.2°F. The highest and lowest sea temperatures during the month were 53.4°F and 50.9°F.

Monthly sea water temperature in Seaside, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Molokai 78.7°F 78.2°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
Hilo 78.0°F 78.0°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
Corpus Christi 67.5°F 66.5°F
Daytona Beach 67.1°F 65.8°F
Clearwater Beach 66.8°F 62.9°F
Destin 65.7°F 66.5°F

Best time for vacation in Seaside

Sunniest months:
August 13 days
September 12 days
July 11 days
Warmest months:
August 64.9 °F
July 63.1 °F
September 62.8 °F
Warmest sea temp:
August 57.4 °F
July 55.9 °F
September 55.7 °F
Coldest months:
February 46.2 °F
January 47.3 °F
December 47.4 °F
Rainiest months:
January 8 days
November 6 days
December 5 days
Windiest months:
December 10.1 mph
January 9.5 mph
November 9.2 mph

Seaside on a weather map

Seaside
+55°F
NW 1 mph
Feels like: +55°F
Precip.: 29%
Places in USA:
Name
°F
+79°F
+77°F
+79°F
+59°F
+75°F
+84°F
+72°F
+77°F
+81°F
+64°F
+55°F
+77°F
+77°F
+79°F
+70°F
24 Hours Forecast
Seaside
Local time: 01:21
July 02, thursday
0300
55°F
NW
1 mph
0600
54°F
NW
3 mph
0900
57°F
NE
2 mph
1200
61°F
E
5 mph
1500
61°F
E
6 mph
1800
61°F
NE
6 mph
2100
59°F
NE
4 mph
July 03, friday
0000
57°F
NE
4 mph
Units of measurement: °C / °F