S
M
T
W
T
F
S
26
65°
45°
27
65°
46°
28
56°
48°
29
67°
45°
30
73°
49°
1
60°
49°
2
62°
46°
3
62°
50°
4
63°
52°
5
58°
51°
6
58°
47°
7
60°
48°
8
65°
50°
9
67°
50°
10
56°
45°
11
58°
37°
12
58°
38°
13
56°
47°
14
55°
44°
15
59°
40°
16
55°
43°
17
58°
45°
18
53°
46°
19
60°
53°
20
61°
54°
21
71°
55°
22
73°
55°
23
67°
54°
24
80°
50°
25
N/A
26
80°
62°
27
82°
59°
28
70°
56°
29
65°
54°
30
65°
55°
31
63°
57°
1
66°
55°
2
62°
52°
3
62°
52°
4
62°
52°
5
63°
53°
6
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Porthcawl
Porthcawl's May 2026 forecast shows daily high temperatures ranging from 62° to 82°, with overnight lows between 52° and 62°. The average high for May is 67° with an average low of 55°. 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 Porthcawl. See also: June | July | August.
