S
M
T
W
T
F
S
26
55°
44°
27
54°
40°
28
54°
41°
29
55°
43°
30
54°
46°
1
58°
46°
2
56°
45°
3
55°
46°
4
55°
46°
5
56°
45°
6
55°
45°
7
56°
47°
8
60°
47°
9
58°
46°
10
58°
47°
11
57°
48°
12
60°
48°
13
60°
47°
14
58°
48°
15
57°
44°
16
57°
46°
17
58°
47°
18
64°
46°
19
64°
48°
20
61°
49°
21
61°
48°
22
60°
47°
23
60°
50°
24
61°
50°
25
65°
49°
26
62°
50°
27
62°
50°
28
63°
49°
29
63°
50°
30
64°
48°
31
63°
45°
1
64°
46°
2
65°
51°
3
64°
48°
4
62°
48°
5
62°
49°
6
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in The Mumbles
The Mumbles's May 2026 forecast shows daily high temperatures ranging from 54° to 65°, with overnight lows between 40° and 51°. The average high for May is 60° with an average low of 47°. 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 The Mumbles. See also: June | July | August.
