S
M
T
W
T
F
S
26
82°
58°
27
79°
57°
28
74°
55°
29
74°
56°
30
75°
55°
1
75°
60°
2
81°
60°
3
82°
59°
4
82°
59°
5
79°
60°
6
79°
60°
7
80°
61°
8
81°
62°
9
83°
61°
10
81°
61°
11
77°
60°
12
78°
62°
13
79°
62°
14
80°
63°
15
84°
64°
16
84°
65°
17
83°
65°
18
85°
64°
19
84°
65°
20
81°
65°
21
81°
64°
22
82°
58°
23
81°
59°
24
80°
59°
25
82°
62°
26
81°
61°
27
82°
62°
28
82°
61°
29
83°
64°
30
87°
66°
31
83°
65°
1
83°
65°
2
84°
63°
3
84°
64°
4
86°
64°
5
88°
65°
6
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Southport
Southport's May 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 55° and 66°. The average high for May is 81° with an average low of 62°. 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 Southport. See also: June | July | August.