18.03
wed
wed
Day
34°F
W 5 mph
Precip.
0%
0%
Night
36°F
NW 9 mph
Precip.
0%
0%
19.03
thu
thu
Day
43°F
NW 8 mph
Precip.
0%
0%
Night
39°F
N 9 mph
Precip.
0%
0%
20.03
fri
fri
Day
50°F
N 12 mph
Precip.
0%
0%
Night
46°F
N 23 mph
Precip.
0%
0%
21.03
sat
sat
Day
59°F
SE 14 mph
Precip.
0%
0%
Night
45°F
W 9 mph
Precip.
0%
0%
22.03
sun
sun
Day
50°F
N 10 mph
Precip.
0%
0%
Night
50°F
N 14 mph
Precip.
0%
0%
23.03
mon
mon
Day
55°F
E 18 mph
Precip.
22%
22%
Night
41°F
S 23 mph
Precip.
0%
0%
24.03
tue
tue
Day
39°F
S 21 mph
Precip.
0%
0%
Night
39°F
NW 7 mph
Precip.
0%
0%
25.03
wed
wed
Day
43°F
N 7 mph
Precip.
0%
0%
Night
45°F
N 12 mph
Precip.
0%
0%
26.03
thu
thu
Day
52°F
N 19 mph
Precip.
0%
0%
Night
54°F
N 24 mph
Precip.
0%
0%
27.03
fri
fri
Day
54°F
E 21 mph
Precip.
100%
100%
Night
34°F
SE 26 mph
Precip.
49%
49%
28.03
sat
sat
Day
36°F
SE 22 mph
Precip.
0%
0%
Night
39°F
N 9 mph
Precip.
0%
0%
29.03
sun
sun
Day
43°F
SE 21 mph
Precip.
0%
0%
Night
36°F
S 23 mph
Precip.
0%
0%
30.03
mon
mon
Day
36°F
S 15 mph
Precip.
0%
0%
Night
36°F
W 6 mph
Precip.
0%
0%
31.03
tue
tue
Day
41°F
N 11 mph
Precip.
0%
0%
Night
43°F
N 19 mph
Precip.
0%
0%
sea water
temperature
temperature
| Bethany Beach |
monthly
weather
weather
| Bethany Beach |
current
weather
weather
| Bethany Beach |
7 days
forecast
forecast
| Bethany Beach |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 39.1°F. The highest and lowest sea temperatures during the month were 42.1°F and 36.1°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 51.7°F. The highest and lowest sea temperatures during the month were 56.5°F and 48.7°F.
Air temperature in Bethany Beach, °F
Precipitation total in Bethany Beach, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Bethany Beach
Bethany Beach on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Bethany Beach
Local time: 17:25
March 18, wednesday
1800
37°F
NW
8 mph
8 mph
2100
36°F
NW
9 mph
9 mph
March 19, thursday
0000
36°F
NW
9 mph
9 mph
0300
36°F
NW
8 mph
8 mph
0600
36°F
NW
7 mph
7 mph
0900
39°F
NW
6 mph
6 mph
1200
43°F
NW
8 mph
8 mph
1500
43°F
NW
11 mph
11 mph
