World Resorts USA South Bethany Weather

South Bethany sea water temperature

Current sea water temperature:
+49.1°F
Minimum sea water temperature in April: 58.3°F
Maximum sea water temperature in April: 45.7°F
Average sea water temperature in April: 50.9°F

Sea water temperature for the last 10 days:

April 9 49.1°F April 4 47.1°F
April 8 49.6°F April 3 47.1°F
April 7 49.5°F April 2 47.1°F
April 6 47.1°F April 1 46.0°F
April 5 47.1°F March 31 45.7°F

When is the warmest sea in South Bethany?

Based on the data about daily sea water temperature for the last three years the warmest sea in South Bethany was noticed in July, August and September.

Monthly Sea Temperatures in South Bethany, °F

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 75.6°F. The highest and lowest sea temperatures during the month were 77.9°F and 73.6°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 75.3°F. The highest and lowest sea temperatures during the month were 78.4°F and 72.9°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 72.7°F. The highest and lowest sea temperatures during the month were 74.7°F and 71.4°F.

Best time for vacation in South Bethany

Sunniest months:
November 17 days
October 15 days
January 14 days
Warmest months:
July 82.3 °F
August 79.8 °F
June 76.6 °F
Warmest sea temp:
July 74.4 °F
August 74.3 °F
September 73.3 °F
Coldest months:
January 40.9 °F
February 43.5 °F
December 45.9 °F
Rainiest months:
August 4 days
July 3 days
October 3 days
Windiest months:
March 12.3 mph
January 12.0 mph
February 11.8 mph

South Bethany on a weather map

South Bethany
+43°F
W 10 mph
Feels like: +39°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+72°F
+72°F
+68°F
+59°F
+70°F
+73°F
+68°F
+34°F
+61°F
+55°F
+66°F
+66°F
+63°F
+50°F
24 Hours Forecast
South Bethany
Local time: 06:57
April 09, thursday
0900
45°F
W
9 mph
1200
46°F
W
7 mph
1500
48°F
W
8 mph
1800
45°F
W
9 mph
2100
43°F
NW
9 mph
April 10, friday
0000
43°F
NW
8 mph
0300
41°F
N
4 mph
0600
41°F
N
4 mph
Units of measurement: °C / °F