S
M
T
W
T
F
S
29
36°
25°
30
34°
24°
1
34°
24°
2
35°
25°
3
37°
25°
4
36°
24°
5
37°
24°
6
35°
23°
7
37°
26°
8
37°
29°
9
39°
28°
10
38°
30°
11
39°
32°
12
40°
28°
13
36°
26°
14
34°
25°
15
33°
24°
16
32°
23°
17
31°
23°
18
35°
25°
19
34°
23°
20
35°
25°
21
39°
32°
22
40°
32°
23
41°
31°
24
41°
31°
25
33°
23°
26
34°
29°
27
35°
29°
28
36°
30°
29
36°
30°
30
40°
29°
31
39°
30°
1
36°
30°
2
37°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hartenstein
Hartenstein's December 2026 forecast shows daily high temperatures ranging from 31° to 41°, with overnight lows between 23° and 32°. The average high for December is 36° with an average low of 27°. 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 Hartenstein. See also: January | February | March.
