S
M
T
W
T
F
S
30
84°
66°
31
84°
64°
1
84°
59°
2
84°
64°
3
88°
68°
4
84°
64°
5
84°
63°
6
75°
66°
7
81°
64°
8
84°
64°
9
75°
57°
10
79°
54°
11
84°
63°
12
70°
55°
13
70°
48°
14
N/A
15
67°
48°
16
70°
57°
17
73°
59°
18
62°
57°
19
67°
58°
20
66°
52°
21
67°
51°
22
66°
52°
23
68°
53°
24
69°
53°
25
71°
52°
26
71°
53°
27
67°
49°
28
58°
50°
29
65°
48°
30
67°
44°
1
69°
47°
2
65°
47°
3
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Darwin
Darwin's September 2026 forecast shows daily high temperatures ranging from 58° to 73°, with overnight lows between 44° and 59°. The average high for September is 67° with an average low of 51°. 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 Darwin. See also: October | November | December.