S
M
T
W
T
F
S
30
91°
79°
31
92°
81°
1
88°
78°
2
90°
79°
3
84°
77°
4
82°
77°
5
91°
77°
6
92°
77°
7
86°
75°
8
91°
77°
9
86°
73°
10
86°
78°
11
88°
76°
12
84°
77°
13
85°
75°
14
85°
76°
15
83°
75°
16
84°
75°
17
87°
77°
18
91°
76°
19
90°
74°
20
88°
75°
21
87°
73°
22
86°
74°
23
93°
77°
24
92°
78°
25
93°
76°
26
91°
77°
27
85°
76°
28
85°
77°
29
86°
76°
30
82°
76°
1
81°
74°
2
81°
74°
3
80°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Taipei City
Taipei City's September 2026 forecast shows daily high temperatures ranging from 80° to 93°, with overnight lows between 73° and 78°. The average high for September is 87° with an average low of 75°. 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 Taipei City. See also: October | November | December.