S
M
T
W
T
F
S
26
74°
43°
27
71°
57°
28
64°
50°
29
61°
39°
30
63°
39°
1
55°
39°
2
59°
34°
3
72°
46°
4
82°
46°
5
57°
42°
6
60°
38°
7
62°
47°
8
63°
45°
9
77°
51°
10
66°
43°
11
64°
48°
12
68°
48°
13
72°
51°
14
73°
54°
15
73°
54°
16
72°
52°
17
70°
54°
18
81°
55°
19
75°
55°
20
73°
55°
21
71°
46°
22
67°
46°
23
67°
47°
24
69°
47°
25
68°
48°
26
68°
48°
27
69°
49°
28
70°
49°
29
71°
54°
30
73°
59°
31
74°
55°
1
72°
53°
2
75°
58°
3
77°
59°
4
78°
60°
5
80°
61°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Peru
Peru's May 2026 forecast shows daily high temperatures ranging from 57° to 81°, with overnight lows between 38° and 62°. The average high for May is 71° with an average low of 51°. 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 Peru. See also: June | July | August.