S
M
T
W
T
F
S
26
66°
57°
27
70°
57°
28
73°
59°
29
66°
59°
30
61°
54°
1
64°
59°
2
68°
59°
3
73°
61°
4
66°
59°
5
66°
52°
6
64°
57°
7
70°
61°
8
73°
63°
9
70°
59°
10
70°
54°
11
73°
61°
12
72°
64°
13
75°
66°
14
73°
63°
15
75°
63°
16
75°
64°
17
75°
64°
18
79°
64°
19
81°
64°
20
79°
68°
21
75°
68°
22
72°
68°
23
73°
66°
24
75°
66°
25
77°
66°
26
77°
68°
27
73°
68°
28
77°
68°
29
81°
68°
30
77°
63°
31
N/A
1
81°
69°
2
73°
70°
3
81°
68°
4
77°
69°
5
82°
69°
6
80°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Osaka
Osaka's May 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 68° and 70°. The average high for May is 79° with an average low of 69°. 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 Osaka. See also: June | July | August.
