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 |
| more information | |
14 days
forecast
forecast
| South Bethany |
monthly
weather
weather
| South Bethany |
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 |
Monthly sea water temperature, °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.
current
weather
weather
| South Bethany |
weather in
April
April
| South Bethany |
Best time for vacation in South Bethany
South Bethany on a weather map
Places in USA:
Name
°F
24 Hours Forecast
South Bethany
Local time: 05:36
April 09, thursday
0600

43°F
W
10 mph
10 mph
0900

45°F
W
9 mph
9 mph
1200

46°F
W
7 mph
7 mph
1500

48°F
W
8 mph
8 mph
1800

45°F
W
9 mph
9 mph
2100

43°F
NW
9 mph
9 mph
April 10, friday
0000

43°F
NW
8 mph
8 mph
0300

41°F
N
4 mph
4 mph



























