World Resorts USA Edgartown Weather

Edgartown Sea Temperature in December

Average sea water temperature in December:
+45.9°F
Minimum sea water temperature in December: 52.3°F
Maximum sea water temperature in December: 40.1°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 49.3°F and 40.1°F.

Monthly sea water temperature in Edgartown, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Kailua Kona 79.3°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 78.1°F 77.8°F
Miami Beach 77.4°F 75.9°F
Oahu 77.1°F 77.2°F
Islamorada 76.5°F 73.4°F
Key Largo 76.4°F 73.1°F
Key West 75.9°F 72.6°F
Miami 75.6°F 73.0°F
Everglades 73.7°F 69.7°F
Marco Island 71.9°F 68.0°F
South Padre Island 71.7°F 71.9°F
Naples 71.5°F 67.7°F
Sanibel Island 71.0°F 67.1°F
Cocoa Beach 69.6°F 66.6°F
Siesta Key 69.3°F 65.6°F

Best time for vacation in Edgartown

Sunniest months:
November 15 days
October 14 days
September 13 days
Warmest months:
July 74.0 °F
August 73.4 °F
September 69.3 °F
Warmest sea temp:
August 72.6 °F
July 71.2 °F
September 69.3 °F
Coldest months:
January 37.0 °F
February 37.1 °F
March 42.2 °F
Rainiest months:
January 3 days
April 3 days
October 3 days
Windiest months:
December 14.5 mph
January 14.5 mph
November 14.4 mph

Edgartown on a weather map

Edgartown
+28°F
E 27 mph
Feels like: +14°F
Precip.: 0%
Places in USA:
Name
°F
+28°F
+75°F
+75°F
+59°F
+61°F
+55°F
+64°F
+70°F
+28°F
+79°F
+54°F
+52°F
+50°F
+45°F
+21°F
24 Hours Forecast
Edgartown
Local time: 20:46
December 30, tuesday
2100
28°F
E
27 mph
December 31, wednesday
0000
28°F
E
25 mph
0300
28°F
E
24 mph
0600
30°F
E
21 mph
0900
30°F
E
19 mph
1200
32°F
E
18 mph
1500
34°F
E
21 mph
1800
34°F
E
18 mph
Units of measurement: °C / °F