Measurements:
°C
°F
CURRENT WEATHER
10:27
Bethany Beach
72°F
W 13 mph
Feels like: 72°F
Precip: 3%
World Resorts USA Bethany Beach Weather

7 Day Weather Forecast

09.15
tue
DAY
72°F
SW 11 mph
precip
3%
NIGHT
72°F
NW 8 mph
precip
14%
09.16
wed
DAY
72°F
NW 6 mph
precip
5%
NIGHT
74°F
N 11 mph
precip
5%
09.17
thu
DAY
76°F
N 13 mph
precip
5%
NIGHT
76°F
N 15 mph
precip
8%
09.18
fri
DAY
78°F
W 7 mph
precip
10%
NIGHT
76°F
W 12 mph
precip
24%
09.19
sat
DAY
76°F
W 17 mph
precip
21%
NIGHT
76°F
NW 17 mph
precip
7%
09.20
sun
DAY
80°F
NE 11 mph
precip
15%
NIGHT
78°F
NE 6 mph
precip
18%
09.21
mon
DAY
74°F
SW 17 mph
precip
28%
NIGHT
76°F
W 19 mph
precip
39%

Bethany Beach Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Bethany Beach was 25.0°F. The maximum and minimum values were 24.3°F and 25.8°F respectively.

Bethany Beach on the Weather Map

Best Time to Visit Bethany Beach
The most sunny months:
November 17 days
October 16 days
June 15 days
The most warm months:
July 83.4 °F
August 81.0 °F
June 77.1 °F
Warmest sea temperature:
August 77.3 °F
July 77.2 °F
September 75.8 °F
The most cold months:
January 39.6 °F
February 41.8 °F
December 45.3 °F
The most rainy months:
August 3 days
December 3 days
July 3 days
The most windy months:
March 13 mph
January 13 mph
February 12 mph
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