World Resorts USA Seward Weather

Seward Sea Temperature in December

Average sea water temperature in December:
+43.0°F
Minimum sea water temperature in December: 47.1°F
Maximum sea water temperature in December: 40.6°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 44.2°F. The highest and lowest sea temperatures during the month were 46.0°F and 42.6°F.

Monthly sea water temperature in Seward, °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 Largo 76.3°F 73.1°F
Key West 75.9°F 72.6°F
Miami 75.5°F 73.0°F
Everglades 73.7°F 69.7°F
South Padre Island 71.8°F 71.9°F
Naples 71.5°F 67.7°F
Sanibel Island 70.9°F 67.1°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

Best time for vacation in Seward

Sunniest months:
January 7 days
November 7 days
October 6 days
Warmest months:
July 61.0 °F
August 59.8 °F
June 58.3 °F
Warmest sea temp:
August 56.2 °F
July 55.2 °F
September 53.3 °F
Coldest months:
December 20.6 °F
January 21.1 °F
February 25.5 °F
Rainiest months:
August 5 days
September 5 days
October 4 days
Windiest months:
December 6.2 mph
January 5.6 mph
November 5.3 mph

Seward on a weather map

Seward
-4°F
S 16 mph
Feels like: -26°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+70°F
+70°F
+82°F
+77°F
+75°F
+73°F
+66°F
+45°F
+81°F
+59°F
+77°F
+77°F
+81°F
+36°F
24 Hours Forecast
Seward
Local time: 10:46
February 26, thursday
1200
-4°F
S
16 mph
1500
0°F
S
14 mph
1800
-13°F
S
14 mph
2100
-17°F
S
14 mph
February 27, friday
0000
-17°F
S
12 mph
0300
-17°F
S
12 mph
0600
-17°F
S
11 mph
0900
-13°F
S
9 mph
Units of measurement: °C / °F