S
M
T
W
T
F
S
30
75°
68°
31
81°
72°
1
81°
72°
2
86°
73°
3
88°
72°
4
79°
70°
5
79°
68°
6
73°
72°
7
77°
72°
8
82°
72°
9
88°
66°
10
73°
66°
11
70°
68°
12
78°
70°
13
82°
74°
14
89°
76°
15
82°
71°
16
77°
68°
17
76°
72°
18
80°
74°
19
80°
68°
20
77°
67°
21
80°
68°
22
81°
69°
23
80°
70°
24
79°
69°
25
80°
70°
26
81°
68°
27
77°
65°
28
75°
65°
29
77°
62°
30
76°
67°
1
75°
66°
2
76°
66°
3
74°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chiba-shi
Chiba-shi's September 2026 forecast shows daily high temperatures ranging from 70° to 89°, with overnight lows between 62° and 76°. The average high for September is 78° 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 September weather will actually feel in Chiba-shi. See also: October | November | December.
