S
M
T
W
T
F
S
26
69°
50°
27
69°
54°
28
67°
57°
29
64°
46°
30
61°
38°
1
55°
43°
2
54°
39°
3
64°
36°
4
75°
51°
5
64°
47°
6
58°
44°
7
62°
37°
8
66°
48°
9
75°
50°
10
68°
53°
11
72°
45°
12
76°
44°
13
66°
48°
14
66°
40°
15
69°
47°
16
75°
58°
17
83°
62°
18
83°
69°
19
84°
59°
20
70°
52°
21
69°
53°
22
67°
62°
23
77°
61°
24
78°
62°
25
80°
64°
26
79°
63°
27
78°
63°
28
78°
62°
29
77°
59°
30
78°
62°
31
80°
69°
1
80°
64°
2
80°
63°
3
75°
58°
4
73°
56°
5
74°
57°
6
77°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Southern Dunes
Southern Dunes's May 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 52° and 69°. The average high for May is 77° with an average low of 61°. 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 Southern Dunes. See also: June | July | August.
