S
M
T
W
T
F
S
26
63°
50°
27
67°
49°
28
61°
48°
29
61°
42°
30
59°
36°
1
53°
40°
2
54°
32°
3
61°
36°
4
77°
48°
5
58°
47°
6
58°
39°
7
59°
47°
8
64°
47°
9
71°
53°
10
62°
39°
11
58°
41°
12
63°
51°
13
68°
52°
14
70°
51°
15
74°
50°
16
67°
50°
17
65°
50°
18
72°
52°
19
71°
50°
20
67°
45°
21
66°
46°
22
66°
46°
23
68°
48°
24
69°
50°
25
69°
50°
26
70°
49°
27
72°
48°
28
72°
51°
29
76°
55°
30
78°
55°
31
79°
58°
1
79°
57°
2
75°
54°
3
80°
59°
4
81°
60°
5
81°
61°
6
80°
60°
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 58° to 81°, with overnight lows between 39° and 61°. The average high for May is 70° 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.