S
M
T
W
T
F
S
26
72°
51°
27
70°
56°
28
76°
54°
29
69°
57°
30
61°
56°
1
68°
51°
2
82°
53°
3
78°
61°
4
83°
67°
5
75°
56°
6
71°
59°
7
79°
61°
8
77°
64°
9
75°
61°
10
77°
58°
11
78°
61°
12
78°
61°
13
81°
60°
14
78°
60°
15
75°
56°
16
81°
59°
17
86°
60°
18
85°
62°
19
83°
66°
20
85°
67°
21
73°
60°
22
60°
55°
23
66°
54°
24
76°
57°
25
81°
61°
26
80°
64°
27
82°
67°
28
81°
69°
29
89°
71°
30
85°
66°
31
86°
70°
1
89°
67°
2
79°
67°
3
68°
64°
4
76°
65°
5
71°
62°
6
N/A
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Shinjuku
Shinjuku's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Shinjuku. See also: June | July | August.
