S
M
T
W
T
F
S
29
42°
28°
30
43°
28°
1
43°
31°
2
44°
36°
3
47°
37°
4
47°
30°
5
48°
29°
6
45°
29°
7
44°
30°
8
43°
31°
9
44°
32°
10
44°
28°
11
Hist. Avg.
46°
32°
12
Hist. Avg.
46°
32°
13
Hist. Avg.
46°
32°
14
Hist. Avg.
46°
32°
15
Hist. Avg.
46°
32°
16
Hist. Avg.
46°
32°
17
Hist. Avg.
46°
32°
18
Hist. Avg.
46°
32°
19
Hist. Avg.
45°
32°
20
Hist. Avg.
45°
32°
21
Hist. Avg.
45°
32°
22
Hist. Avg.
45°
32°
23
Hist. Avg.
45°
32°
24
Hist. Avg.
45°
32°
25
Hist. Avg.
45°
32°
26
Hist. Avg.
45°
32°
27
Hist. Avg.
45°
32°
28
Hist. Avg.
45°
32°
29
Hist. Avg.
45°
32°
30
Hist. Avg.
45°
32°
31
Hist. Avg.
45°
32°
1
Hist. Avg.
46°
32°
2
Hist. Avg.
46°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Sequim
Sequim's December 2026 forecast shows daily high temperatures ranging from 42° to 48°, with overnight lows between 28° and 37°. The average high for December is 45° with an average low of 31°. 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 Sequim. See also: January | February | March.