S
M
T
W
T
F
S
30
88°
66°
31
89°
64°
1
87°
62°
2
87°
63°
3
85°
64°
4
86°
64°
5
87°
63°
6
87°
64°
7
89°
64°
8
90°
64°
9
90°
65°
10
89°
64°
11
90°
65°
12
90°
65°
13
89°
64°
14
90°
64°
15
90°
65°
16
89°
62°
17
88°
63°
18
88°
64°
19
89°
66°
20
90°
65°
21
88°
66°
22
90°
67°
23
91°
67°
24
91°
66°
25
90°
67°
26
90°
67°
27
89°
66°
28
88°
67°
29
88°
68°
30
89°
67°
1
88°
68°
2
89°
67°
3
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kotabaru
Kotabaru's September 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 62° and 68°. The average high for September is 89° with an average low of 65°. 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 Kotabaru. See also: October | November | December.
