S
M
T
W
T
F
S
26
59°
46°
27
66°
46°
28
57°
46°
29
61°
45°
30
57°
52°
1
59°
52°
2
55°
48°
3
59°
48°
4
59°
46°
5
59°
48°
6
57°
46°
7
57°
41°
8
61°
46°
9
63°
54°
10
61°
46°
11
55°
45°
12
57°
48°
13
55°
48°
14
52°
46°
15
54°
46°
16
57°
48°
17
54°
48°
18
55°
48°
19
57°
54°
20
59°
54°
21
63°
55°
22
61°
54°
23
68°
52°
24
73°
52°
25
83°
62°
26
79°
63°
27
72°
56°
28
61°
56°
29
64°
54°
30
66°
54°
31
64°
54°
1
63°
56°
2
61°
54°
3
61°
53°
4
59°
52°
5
60°
54°
6
61°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Penzance
Penzance's May 2026 forecast shows daily high temperatures ranging from 59° to 83°, with overnight lows between 52° and 63°. The average high for May is 66° 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 Penzance. See also: June | July | August.
