Current sea water temperature:
+74.8°F
| Minimum sea water temperature in September: | 79.7°F |
| Maximum sea water temperature in September: | 68.5°F |
| Average sea water temperature in September: | 73.6°F |
| more information | |
14 days
forecast
forecast
| South Bethany |
monthly
weather
weather
| South Bethany |
Sea water temperature for the last 10 days:
| September 19 | 74.8°F | September 14 | 76.8°F |
| September 18 | 74.8°F | September 13 | 76.1°F |
| September 17 | 74.1°F | September 12 | 76.1°F |
| September 16 | 75.4°F | September 11 | 76.8°F |
| September 15 | 75.7°F | September 10 | 77.5°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 August, July and September.
Monthly Sea Temperatures in South Bethany, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 75.8°F. The highest and lowest sea temperatures during the month were 77.9°F and 73.9°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 74.0°F. The highest and lowest sea temperatures during the month were 76.3°F and 71.4°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 76.6°F. The highest and lowest sea temperatures during the month were 78.4°F and 74.1°F.
current
weather
weather
| South Bethany |
weather in
September
September
| 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: 06:11
September 19, saturday
0900
72°F
SW
23 mph
23 mph
1200
72°F
SW
22 mph
22 mph
1500
72°F
SW
19 mph
19 mph
1800
72°F
W
19 mph
19 mph
2100
72°F
W
19 mph
19 mph
September 20, sunday
0000
72°F
W
17 mph
17 mph
0300
72°F
W
15 mph
15 mph
0600
72°F
NW
16 mph
16 mph
