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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Bethany Beach, DE
Content continues below
May
Average Temperature
High
20°
Feels 20
Low
13°
Feels 13
Average Precipitation
12 Days
Rain amount
80.5mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
26°
19
26°
20
27°
21
17°
22
13°
23
20°
24
21°
25
18°
26
21°
27
23°
28
18°
29
19°
30
21°
31
22°
Forecast
Monday, May 18, 2026
Day
26°
Feels 26
Wind
24 km/h SW
Gust
36 km/h
Humidity
65%
P.O.P
0%
Night
20°
Feels 20
Wind
24 km/h S
Gust
36 km/h
Humidity
89%
P.O.P
0%
Historical Averages
May 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.