S
M
T
W
T
F
S
26
72°
46°
27
70°
55°
28
79°
52°
29
64°
55°
30
59°
52°
1
70°
52°
2
82°
50°
3
77°
59°
4
82°
56°
5
73°
54°
6
70°
54°
7
77°
59°
8
79°
63°
9
75°
55°
10
75°
54°
11
75°
55°
12
77°
61°
13
79°
55°
14
77°
59°
15
75°
55°
16
81°
55°
17
86°
59°
18
N/A
19
88°
57°
20
74°
59°
21
67°
57°
22
74°
49°
23
76°
55°
24
74°
57°
25
84°
62°
26
74°
63°
27
76°
57°
28
78°
56°
29
81°
56°
30
79°
58°
31
71°
50°
1
72°
52°
2
72°
52°
3
74°
53°
4
75°
53°
5
76°
54°
6
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Yamanashi-shi
Yamanashi-shi's May 2026 forecast shows daily high temperatures ranging from 67° to 88°, with overnight lows between 49° and 63°. The average high for May is 76° with an average low of 56°. 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 Yamanashi-shi. See also: June | July | August.