S
M
T
W
T
F
S
26
64°
45°
27
64°
46°
28
55°
46°
29
66°
45°
30
72°
48°
1
59°
48°
2
61°
46°
3
61°
50°
4
63°
49°
5
61°
46°
6
58°
46°
7
60°
46°
8
59°
48°
9
61°
47°
10
58°
48°
11
60°
45°
12
61°
44°
13
60°
45°
14
62°
46°
15
60°
45°
16
61°
46°
17
60°
45°
18
62°
45°
19
61°
46°
20
61°
44°
21
62°
44°
22
61°
45°
23
62°
47°
24
62°
49°
25
63°
49°
26
62°
48°
27
62°
47°
28
63°
46°
29
62°
44°
30
63°
46°
31
66°
48°
1
65°
47°
2
67°
49°
3
69°
51°
4
67°
48°
5
66°
49°
6
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lower Penarth
Lower Penarth's May 2026 forecast shows daily high temperatures ranging from 58° to 69°, with overnight lows between 44° and 52°. The average high for May is 62° 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 Lower Penarth. See also: June | July | August.
