S
M
T
W
T
F
S
26
57°
48°
27
72°
40°
28
69°
51°
29
67°
56°
30
60°
41°
1
68°
34°
2
55°
40°
3
61°
34°
4
77°
42°
5
83°
45°
6
71°
54°
7
67°
47°
8
71°
34°
9
72°
47°
10
79°
44°
11
67°
41°
12
77°
32°
13
74°
41°
14
56°
44°
15
72°
40°
16
84°
41°
17
83°
59°
18
90°
60°
19
91°
61°
20
79°
53°
21
58°
50°
22
64°
51°
23
70°
55°
24
73°
56°
25
74°
54°
26
76°
52°
27
73°
50°
28
76°
51°
29
77°
53°
30
79°
50°
31
78°
54°
1
78°
55°
2
77°
56°
3
73°
55°
4
75°
53°
5
72°
51°
6
75°
55°
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 91°, with overnight lows between 50° and 61°. The average high for May is 76° with an average low of 54°. 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.