S
M
T
W
T
F
S
30
69°
49°
31
69°
55°
1
75°
56°
2
76°
52°
3
76°
48°
4
75°
47°
5
68°
49°
6
68°
54°
7
74°
48°
8
73°
50°
9
67°
51°
10
65°
53°
11
66°
52°
12
65°
48°
13
65°
52°
14
66°
53°
15
71°
50°
16
71°
46°
17
68°
45°
18
67°
46°
19
70°
52°
20
64°
48°
21
63°
45°
22
62°
45°
23
62°
44°
24
63°
43°
25
62°
44°
26
64°
44°
27
62°
49°
28
59°
47°
29
60°
48°
30
64°
47°
1
65°
48°
2
58°
45°
3
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gillies Bay
Gillies Bay's September 2026 forecast shows daily high temperatures ranging from 58° to 76°, with overnight lows between 43° and 56°. The average high for September is 67° with an average low of 49°. 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 Gillies Bay. See also: October | November | December.
