S
M
T
W
T
F
S
29
48°
34°
30
54°
40°
1
61°
42°
2
58°
39°
3
54°
33°
4
52°
29°
5
57°
27°
6
45°
26°
7
50°
39°
8
52°
32°
9
58°
27°
10
53°
25°
11
45°
22°
12
43°
19°
13
39°
24°
14
45°
36°
15
51°
40°
16
57°
34°
17
59°
27°
18
48°
26°
19
46°
21°
20
40°
22°
21
41°
23°
22
47°
26°
23
50°
30°
24
46°
30°
25
44°
29°
26
42°
27°
27
41°
23°
28
40°
25°
29
45°
29°
30
48°
24°
31
42°
22°
1
42°
26°
2
41°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lebanon
Lebanon's December 2026 forecast shows daily high temperatures ranging from 39° to 61°, with overnight lows between 19° and 42°. The average high for December is 48° with an average low of 29°. 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 Lebanon. See also: January | February | March.
