S
M
T
W
T
F
S
30
77°
49°
31
77°
47°
1
75°
45°
2
68°
47°
3
68°
47°
4
69°
46°
5
68°
46°
6
67°
47°
7
70°
45°
8
70°
44°
9
68°
45°
10
72°
50°
11
71°
50°
12
70°
46°
13
71°
44°
14
70°
43°
15
68°
47°
16
69°
46°
17
64°
45°
18
64°
45°
19
67°
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
Miramichi's September 2026 forecast shows daily high temperatures ranging from 64° to 77°, with overnight lows between 43° and 50°. The average high for September is 70° with an average low of 46°. 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. See also: October | November | December.
