19.09
sat
sat
Day
72°F
SW 15 mph
Precip.
20%
20%
Night
72°F
NW 19 mph
Precip.
22%
22%
20.09
sun
sun
Day
73°F
N 15 mph
Precip.
7%
7%
Night
73°F
NE 12 mph
Precip.
35%
35%
21.09
mon
mon
Day
70°F
SW 22 mph
Precip.
63%
63%
Night
72°F
W 25 mph
Precip.
46%
46%
22.09
tue
tue
Day
70°F
W 33 mph
Precip.
43%
43%
Night
68°F
SW 39 mph
Precip.
45%
45%
23.09
wed
wed
Day
70°F
SW 37 mph
Precip.
63%
63%
Night
68°F
SW 37 mph
Precip.
37%
37%
24.09
thu
thu
Day
63°F
S 22 mph
Precip.
38%
38%
Night
61°F
S 14 mph
Precip.
21%
21%
25.09
fri
fri
Day
63°F
SE 17 mph
Precip.
8%
8%
Night
61°F
S 24 mph
Precip.
22%
22%
sea water
temperature
temperature
| South Bethany |
monthly
weather
weather
| South Bethany |
current
weather
weather
| South Bethany |
14 days
forecast
forecast
| South Bethany |
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.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 65.9°F. The highest and lowest sea temperatures during the month were 72.3°F and 59.9°F.
Air temperature in South Bethany, °F
Precipitation total in South Bethany, in.
* Charts above show average data for the last 3 years.
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: 05:19
September 19, saturday
0600
73°F
SW
20 mph
20 mph
0900
72°F
SW
20 mph
20 mph
1200
72°F
SW
15 mph
15 mph
1500
72°F
SW
17 mph
17 mph
1800
72°F
W
16 mph
16 mph
2100
72°F
W
11 mph
11 mph
September 20, sunday
0000
72°F
NW
19 mph
19 mph
0300
72°F
NW
15 mph
15 mph
