S
M
T
W
T
F
S
30
76°
58°
31
75°
58°
1
76°
57°
2
75°
58°
3
71°
57°
4
71°
57°
5
67°
56°
6
70°
56°
7
67°
46°
8
66°
48°
9
69°
45°
10
72°
47°
11
70°
50°
12
66°
52°
13
69°
54°
14
74°
48°
15
75°
51°
16
73°
52°
17
72°
55°
18
72°
56°
19
67°
53°
20
70°
55°
21
70°
54°
22
62°
51°
23
62°
45°
24
63°
48°
25
64°
45°
26
67°
45°
27
61°
41°
28
61°
46°
29
63°
45°
30
60°
42°
1
60°
43°
2
66°
49°
3
66°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Coquitlam
Port Coquitlam's September 2026 forecast shows daily high temperatures ranging from 60° to 76°, with overnight lows between 40° and 58°. The average high for September is 68° with an average low of 50°. 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 Port Coquitlam. See also: October | November | December.
