S
M
T
W
T
F
S
30
87°
73°
31
86°
74°
1
86°
76°
2
86°
78°
3
85°
78°
4
85°
77°
5
85°
75°
6
85°
75°
7
85°
76°
8
85°
77°
9
85°
77°
10
N/A
11
90°
69°
12
90°
70°
13
90°
67°
14
90°
67°
15
88°
68°
16
89°
66°
17
86°
64°
18
88°
66°
19
89°
65°
20
92°
63°
21
92°
64°
22
93°
63°
23
89°
65°
24
89°
65°
25
90°
66°
26
90°
67°
27
89°
67°
28
89°
66°
29
90°
67°
30
90°
68°
1
89°
67°
2
90°
68°
3
90°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kotabaru
Kotabaru's September 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 63° and 70°. The average high for September is 90° with an average low of 66°. 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.
