S
M
T
W
T
F
S
30
70°
52°
31
69°
48°
1
69°
48°
2
70°
46°
3
69°
51°
4
70°
47°
5
69°
46°
6
67°
44°
7
66°
51°
8
70°
48°
9
67°
47°
10
66°
45°
11
64°
43°
12
65°
43°
13
68°
49°
14
65°
48°
15
65°
45°
16
Hist. Avg.
65°
44°
17
Hist. Avg.
65°
44°
18
Hist. Avg.
65°
44°
19
Hist. Avg.
64°
43°
20
Hist. Avg.
64°
43°
21
Hist. Avg.
63°
43°
22
Hist. Avg.
63°
42°
23
Hist. Avg.
63°
42°
24
Hist. Avg.
62°
42°
25
Hist. Avg.
62°
41°
26
Hist. Avg.
62°
41°
27
Hist. Avg.
61°
41°
28
Hist. Avg.
61°
40°
29
Hist. Avg.
60°
40°
30
Hist. Avg.
60°
40°
1
Hist. Avg.
60°
39°
2
Hist. Avg.
59°
39°
3
Hist. Avg.
59°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Miramichi Bay
Miramichi Bay's September 2026 forecast shows daily high temperatures ranging from 64° to 70°, with overnight lows between 43° and 52°. The average high for September is 68° with an average low of 47°. 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 Miramichi Bay. See also: October | November | December.
