S
M
T
W
T
F
S
30
69°
49°
31
69°
50°
1
68°
57°
2
67°
57°
3
66°
56°
4
66°
55°
5
68°
53°
6
67°
49°
7
66°
47°
8
67°
48°
9
68°
47°
10
71°
48°
11
67°
53°
12
64°
46°
13
Hist. Avg.
67°
51°
14
Hist. Avg.
67°
51°
15
Hist. Avg.
67°
51°
16
Hist. Avg.
66°
51°
17
Hist. Avg.
66°
50°
18
Hist. Avg.
66°
50°
19
Hist. Avg.
66°
50°
20
Hist. Avg.
65°
50°
21
Hist. Avg.
65°
50°
22
Hist. Avg.
65°
49°
23
Hist. Avg.
64°
49°
24
Hist. Avg.
64°
49°
25
Hist. Avg.
64°
49°
26
Hist. Avg.
63°
49°
27
Hist. Avg.
63°
48°
28
Hist. Avg.
63°
48°
29
Hist. Avg.
62°
48°
30
Hist. Avg.
62°
48°
1
Hist. Avg.
62°
48°
2
Hist. Avg.
61°
48°
3
Hist. Avg.
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Coquitlam 1
Coquitlam 1's September 2026 forecast shows daily high temperatures ranging from 64° to 71°, with overnight lows between 46° and 57°. The average high for September is 67° with an average low of 51°. 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 Coquitlam 1. See also: October | November | December.
