S
M
T
W
T
F
S
26
52°
47°
27
62°
38°
28
60°
35°
29
59°
52°
30
66°
48°
1
59°
44°
2
61°
46°
3
60°
41°
4
66°
52°
5
70°
58°
6
68°
61°
7
67°
48°
8
61°
47°
9
69°
52°
10
74°
48°
11
65°
38°
12
60°
43°
13
67°
57°
14
67°
49°
15
67°
47°
16
72°
46°
17
79°
65°
18
87°
62°
19
79°
66°
20
87°
66°
21
71°
58°
22
61°
57°
23
58°
55°
24
69°
58°
25
74°
58°
26
71°
64°
27
80°
63°
28
80°
60°
29
73°
52°
30
67°
49°
31
67°
60°
1
67°
57°
2
61°
54°
3
66°
57°
4
73°
60°
5
80°
65°
6
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bethany Beach
Bethany Beach's May 2026 forecast shows daily high temperatures ranging from 61° to 83°, with overnight lows between 49° and 66°. The average high for May is 71° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Bethany Beach. See also: June | July | August.