S
M
T
W
T
F
S
26
62°
50°
27
65°
46°
28
55°
40°
29
61°
43°
30
66°
45°
1
69°
50°
2
62°
47°
3
60°
44°
4
59°
46°
5
61°
46°
6
60°
45°
7
58°
44°
8
59°
43°
9
54°
41°
10
55°
44°
11
60°
45°
12
57°
44°
13
56°
46°
14
56°
48°
15
59°
48°
16
61°
47°
17
60°
43°
18
62°
49°
19
64°
51°
20
65°
51°
21
65°
50°
22
66°
50°
23
65°
49°
24
64°
50°
25
63°
50°
26
59°
49°
27
59°
46°
28
60°
48°
29
59°
45°
30
63°
50°
31
65°
51°
1
65°
51°
2
66°
52°
3
66°
51°
4
63°
51°
5
62°
50°
6
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wales
Wales's May 2026 forecast shows daily high temperatures ranging from 54° to 69°, with overnight lows between 40° and 52°. The average high for May is 61° 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 Wales. See also: June | July | August.
