S
M
T
W
T
F
S
30
80°
49°
31
84°
45°
1
83°
44°
2
77°
47°
3
79°
50°
4
83°
49°
5
83°
44°
6
82°
45°
7
77°
43°
8
74°
43°
9
77°
44°
10
79°
46°
11
80°
45°
12
79°
48°
13
77°
48°
14
72°
47°
15
71°
47°
16
71°
46°
17
70°
46°
18
69°
43°
19
69°
42°
20
70°
41°
21
69°
39°
22
68°
40°
23
68°
43°
24
72°
44°
25
73°
44°
26
71°
42°
27
64°
45°
28
64°
40°
29
66°
43°
30
Hist. Avg.
61°
42°
1
Hist. Avg.
61°
42°
2
Hist. Avg.
61°
41°
3
Hist. Avg.
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Stuart Island
Stuart Island's September 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 39° and 50°. The average high for September is 74° with an average low of 45°. 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 Stuart Island. See also: October | November | December.
