S
M
T
W
T
F
S
30
71°
57°
31
74°
58°
1
75°
59°
2
76°
56°
3
75°
60°
4
76°
60°
5
77°
55°
6
74°
56°
7
72°
55°
8
72°
54°
9
73°
55°
10
74°
56°
11
73°
60°
12
76°
57°
13
72°
56°
14
74°
57°
15
75°
60°
16
75°
61°
17
74°
62°
18
77°
59°
19
73°
58°
20
74°
59°
21
73°
58°
22
Hist. Avg.
74°
57°
23
Hist. Avg.
74°
57°
24
Hist. Avg.
74°
58°
25
Hist. Avg.
74°
58°
26
Hist. Avg.
74°
58°
27
Hist. Avg.
74°
58°
28
Hist. Avg.
74°
58°
29
Hist. Avg.
74°
59°
30
Hist. Avg.
74°
59°
1
Hist. Avg.
74°
59°
2
Hist. Avg.
74°
59°
3
Hist. Avg.
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Coombabah
Coombabah's September 2026 forecast shows daily high temperatures ranging from 71° to 77°, with overnight lows between 54° and 62°. The average high for September is 74° with an average low of 58°. 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 Coombabah. See also: October | November | December.