S
M
T
W
T
F
S
26
63°
44°
27
62°
47°
28
56°
45°
29
63°
42°
30
70°
44°
1
65°
45°
2
61°
46°
3
57°
48°
4
58°
36°
5
54°
42°
6
52°
41°
7
53°
39°
8
56°
40°
9
55°
42°
10
54°
37°
11
55°
43°
12
57°
41°
13
56°
43°
14
57°
42°
15
54°
43°
16
57°
46°
17
58°
42°
18
58°
47°
19
59°
46°
20
58°
45°
21
58°
45°
22
59°
46°
23
59°
48°
24
60°
49°
25
59°
49°
26
59°
48°
27
60°
47°
28
59°
46°
29
59°
44°
30
62°
48°
31
61°
47°
1
60°
48°
2
62°
47°
3
64°
50°
4
64°
48°
5
63°
48°
6
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cefn-Brith
Cefn-Brith's May 2026 forecast shows daily high temperatures ranging from 52° to 66°, with overnight lows between 36° and 51°. The average high for May is 58° with an average low of 45°. 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 Cefn-Brith. See also: June | July | August.