S
M
T
W
T
F
S
26
71°
49°
27
69°
56°
28
77°
52°
29
69°
58°
30
61°
53°
1
69°
52°
2
79°
54°
3
76°
60°
4
82°
59°
5
73°
56°
6
70°
57°
7
76°
61°
8
77°
64°
9
74°
58°
10
75°
53°
11
77°
56°
12
77°
60°
13
80°
58°
14
78°
57°
15
74°
57°
16
80°
58°
17
85°
58°
18
82°
62°
19
81°
62°
20
84°
65°
21
73°
62°
22
62°
55°
23
67°
53°
24
N/A
25
75°
66°
26
76°
68°
27
73°
68°
28
73°
70°
29
81°
68°
30
80°
64°
31
73°
66°
1
74°
65°
2
74°
66°
3
77°
69°
4
78°
69°
5
79°
68°
6
78°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Shinjuku
Shinjuku's May 2026 forecast shows daily high temperatures ranging from 73° to 81°, with overnight lows between 64° and 70°. The average high for May is 76° with an average low of 67°. 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.
