S
M
T
W
T
F
S
29
45°
29°
30
42°
27°
1
43°
22°
2
42°
28°
3
43°
27°
4
41°
26°
5
42°
24°
6
46°
22°
7
43°
26°
8
46°
26°
9
48°
20°
10
39°
19°
11
39°
13°
12
37°
14°
13
37°
16°
14
42°
15°
15
38°
23°
16
48°
22°
17
48°
22°
18
41°
23°
19
41°
23°
20
39°
17°
21
40°
23°
22
41°
14°
23
40°
12°
24
33°
11°
25
33°
13°
26
41°
23°
27
45°
20°
28
44°
21°
29
40°
27°
30
43°
25°
31
44°
16°
1
41°
10°
2
34°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Napi Headquarters
Napi Headquarters's December 2026 forecast shows daily high temperatures ranging from 33° to 48°, with overnight lows between 10° and 29°. The average high for December is 41° with an average low of 20°. 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 Napi Headquarters. See also: January | February | March.
