S
M
T
W
T
F
S
29
41°
37°
30
41°
36°
1
42°
35°
2
40°
36°
3
40°
36°
4
41°
37°
5
41°
36°
6
40°
30°
7
40°
29°
8
38°
28°
9
37°
28°
10
38°
36°
11
39°
35°
12
39°
29°
13
Hist. Avg.
43°
35°
14
Hist. Avg.
43°
35°
15
Hist. Avg.
42°
35°
16
Hist. Avg.
42°
35°
17
Hist. Avg.
42°
35°
18
Hist. Avg.
42°
35°
19
Hist. Avg.
42°
35°
20
Hist. Avg.
42°
35°
21
Hist. Avg.
42°
35°
22
Hist. Avg.
42°
35°
23
Hist. Avg.
42°
35°
24
Hist. Avg.
42°
35°
25
Hist. Avg.
42°
35°
26
Hist. Avg.
42°
34°
27
Hist. Avg.
42°
34°
28
Hist. Avg.
42°
34°
29
Hist. Avg.
42°
34°
30
Hist. Avg.
42°
34°
31
Hist. Avg.
42°
34°
1
Hist. Avg.
43°
35°
2
Hist. Avg.
43°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Downtown Port Coquitlam
Downtown Port Coquitlam's December 2026 forecast shows daily high temperatures ranging from 37° to 42°, with overnight lows between 28° and 37°. The average high for December is 40° with an average low of 33°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Downtown Port Coquitlam. See also: January | February | March.