S
M
T
W
T
F
S
30
77°
45°
31
71°
42°
1
67°
41°
2
65°
43°
3
66°
41°
4
65°
43°
5
65°
41°
6
66°
40°
7
69°
43°
8
74°
47°
9
72°
47°
10
70°
48°
11
65°
48°
12
64°
47°
13
72°
40°
14
69°
42°
15
68°
40°
16
61°
44°
17
60°
40°
18
66°
46°
19
69°
45°
20
Hist. Avg.
60°
42°
21
Hist. Avg.
60°
42°
22
Hist. Avg.
60°
42°
23
Hist. Avg.
59°
41°
24
Hist. Avg.
59°
41°
25
Hist. Avg.
58°
41°
26
Hist. Avg.
58°
40°
27
Hist. Avg.
57°
40°
28
Hist. Avg.
57°
40°
29
Hist. Avg.
56°
39°
30
Hist. Avg.
56°
39°
1
Hist. Avg.
55°
39°
2
Hist. Avg.
55°
38°
3
Hist. Avg.
55°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in La Baie
La Baie's September 2026 forecast shows daily high temperatures ranging from 60° to 77°, with overnight lows between 40° and 48°. The average high for September is 68° with an average low of 43°. 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 La Baie. See also: October | November | December.
