World Resorts USA Bethany Beach Weather

Bethany Beach Sea Temperature in January

Average sea water temperature in January:
+42.4°F
Minimum sea water temperature in January: 48.4°F
Maximum sea water temperature in January: 34.9°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 39.5°F. The highest and lowest sea temperatures during the month were 42.1°F and 35.2°F.

Monthly sea water temperature in Bethany Beach, °F

Which USA resorts have warmest sea in January?

Place name January 2026 January 2025
Kailua Kona 78.3°F 78.2°F
Honolulu 77.2°F 77.6°F
Hawaii 77.2°F 77.5°F
Maui 77.0°F 76.9°F
Kauai 77.0°F 75.0°F
West Palm Beach 76.6°F 75.5°F
Oahu 76.1°F 76.5°F
Fort Lauderdale 75.9°F 75.1°F
Miami Beach 74.0°F 73.1°F
Key West 72.5°F 70.3°F
Key Largo 71.7°F 71.1°F
Miami 71.2°F 70.7°F
Everglades 70.8°F 68.6°F
South Padre Island 69.5°F 66.7°F
Naples 67.7°F 64.7°F
Cocoa Beach 66.9°F 60.9°F
Sanibel Island 66.8°F 63.7°F
Siesta Key 65.0°F 61.5°F
Sarasota 65.0°F 61.2°F
Orlando 64.8°F 59.8°F

Best time for vacation in Bethany Beach

Sunniest months:
November 17 days
October 16 days
December 13 days
Warmest months:
July 80.2 °F
August 78.0 °F
June 74.3 °F
Warmest sea temp:
July 74.5 °F
August 74.4 °F
September 73.3 °F
Coldest months:
January 40.7 °F
February 43.7 °F
December 45.7 °F
Rainiest months:
August 3 days
December 3 days
July 3 days
Windiest months:
March 13.5 mph
January 13.2 mph
February 12.6 mph

Bethany Beach on a weather map

Bethany Beach
+36°F
NE 23 mph
Feels like: +25°F
Precip.: 0%
Places in USA:
Name
°F
+34°F
+68°F
+68°F
+55°F
+55°F
+45°F
+55°F
+63°F
+12°F
+55°F
+57°F
+46°F
+39°F
+63°F
+32°F
24 Hours Forecast
Bethany Beach
Local time: 05:33
February 25, wednesday
0600
36°F
NE
23 mph
0900
37°F
NE
19 mph
1200
39°F
NE
19 mph
1500
41°F
NE
14 mph
1800
41°F
NE
12 mph
2100
39°F
NE
12 mph
February 26, thursday
0000
39°F
E
11 mph
0300
37°F
S
11 mph
Units of measurement: °C / °F