S
M
T
W
T
F
S
29
59°
39°
30
59°
35°
1
54°
28°
2
50°
27°
3
42°
34°
4
49°
32°
5
44°
29°
6
45°
35°
7
50°
32°
8
51°
26°
9
49°
32°
10
43°
27°
11
45°
23°
12
37°
24°
13
37°
21°
14
38°
19°
15
34°
20°
16
34°
22°
17
35°
17°
18
38°
17°
19
34°
21°
20
35°
26°
21
42°
34°
22
44°
33°
23
46°
34°
24
47°
31°
25
49°
30°
26
46°
26°
27
39°
20°
28
36°
30°
29
42°
30°
30
Hist. Avg.
40°
23°
31
Hist. Avg.
40°
23°
1
Hist. Avg.
40°
23°
2
Hist. Avg.
40°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Athens
Athens's December 2026 forecast shows daily high temperatures ranging from 34° to 59°, with overnight lows between 17° and 39°. The average high for December is 44° with an average low of 28°. 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 Athens. See also: January | February | March.