S
M
T
W
T
F
S
30
68°
56°
31
73°
51°
1
72°
51°
2
66°
54°
3
67°
58°
4
72°
55°
5
73°
52°
6
72°
56°
7
66°
51°
8
63°
51°
9
64°
50°
10
68°
52°
11
70°
54°
12
70°
56°
13
66°
57°
14
62°
57°
15
61°
56°
16
61°
55°
17
62°
55°
18
60°
52°
19
61°
50°
20
60°
48°
21
61°
47°
22
59°
48°
23
60°
49°
24
63°
52°
25
66°
52°
26
65°
49°
27
59°
54°
28
57°
53°
29
Hist. Avg.
62°
45°
30
Hist. Avg.
61°
45°
1
Hist. Avg.
61°
45°
2
Hist. Avg.
61°
45°
3
Hist. Avg.
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Nelson Island
Nelson Island's September 2026 forecast shows daily high temperatures ranging from 57° to 73°, with overnight lows between 47° and 58°. The average high for September is 65° with an average low of 53°. 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 Nelson Island. See also: October | November | December.
