S
M
T
W
T
F
S
30
78°
51°
31
77°
50°
1
73°
49°
2
75°
50°
3
72°
51°
4
76°
51°
5
75°
50°
6
76°
51°
7
75°
50°
8
74°
49°
9
73°
49°
10
73°
48°
11
72°
48°
12
66°
46°
13
63°
42°
14
59°
39°
15
60°
42°
16
65°
45°
17
64°
34°
18
66°
45°
19
68°
46°
20
71°
47°
21
68°
42°
22
70°
39°
23
61°
41°
24
67°
43°
25
67°
37°
26
66°
30°
27
62°
30°
28
53°
29°
29
53°
28°
30
52°
28°
1
53°
26°
2
50°
27°
3
48°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Geraldton
Geraldton's September 2026 forecast shows daily high temperatures ranging from 48° to 78°, with overnight lows between 26° and 51°. The average high for September is 66° with an average low of 42°. 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 Geraldton. See also: October | November | December.
