S
M
T
W
T
F
S
30
70°
53°
31
72°
52°
1
68°
52°
2
69°
51°
3
68°
51°
4
66°
50°
5
64°
49°
6
64°
48°
7
69°
50°
8
68°
47°
9
68°
46°
10
64°
48°
11
66°
46°
12
69°
45°
13
64°
47°
14
64°
48°
15
65°
48°
16
68°
43°
17
67°
42°
18
61°
40°
19
60°
45°
20
61°
40°
21
63°
40°
22
58°
45°
23
60°
40°
24
64°
38°
25
60°
42°
26
61°
39°
27
62°
39°
28
57°
37°
29
63°
38°
30
56°
37°
1
55°
38°
2
56°
41°
3
56°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Conception Bay South
Conception Bay South's September 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 37° and 53°. The average high for September is 64° with an average low of 44°. 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 Conception Bay South. See also: October | November | December.
