S
M
T
W
T
F
S
30
83°
67°
31
83°
70°
1
82°
69°
2
82°
66°
3
86°
65°
4
82°
65°
5
83°
64°
6
84°
65°
7
82°
64°
8
80°
65°
9
80°
63°
10
81°
64°
11
80°
62°
12
79°
63°
13
80°
64°
14
80°
66°
15
79°
61°
16
79°
61°
17
78°
62°
18
76°
60°
19
76°
61°
20
78°
60°
21
77°
58°
22
Hist. Avg.
75°
63°
23
Hist. Avg.
75°
63°
24
Hist. Avg.
74°
63°
25
Hist. Avg.
74°
62°
26
Hist. Avg.
74°
62°
27
Hist. Avg.
74°
62°
28
Hist. Avg.
73°
61°
29
Hist. Avg.
73°
61°
30
Hist. Avg.
73°
61°
1
Hist. Avg.
73°
60°
2
Hist. Avg.
72°
60°
3
Hist. Avg.
72°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Osaka
Osaka's September 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 58° and 70°. The average high for September is 80° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Osaka. See also: October | November | December.
