S
M
T
W
T
F
S
29
42°
25°
30
39°
24°
1
39°
24°
2
40°
33°
3
45°
32°
4
52°
27°
5
44°
28°
6
38°
28°
7
43°
29°
8
46°
32°
9
44°
25°
10
45°
31°
11
46°
34°
12
Hist. Avg.
39°
24°
13
Hist. Avg.
39°
24°
14
Hist. Avg.
38°
23°
15
Hist. Avg.
38°
23°
16
Hist. Avg.
38°
23°
17
Hist. Avg.
38°
22°
18
Hist. Avg.
37°
22°
19
Hist. Avg.
37°
22°
20
Hist. Avg.
37°
22°
21
Hist. Avg.
36°
21°
22
Hist. Avg.
36°
21°
23
Hist. Avg.
36°
21°
24
Hist. Avg.
36°
20°
25
Hist. Avg.
36°
20°
26
Hist. Avg.
35°
20°
27
Hist. Avg.
35°
20°
28
Hist. Avg.
35°
20°
29
Hist. Avg.
35°
19°
30
Hist. Avg.
34°
19°
31
Hist. Avg.
34°
19°
1
Hist. Avg.
34°
18°
2
Hist. Avg.
34°
18°
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 38° to 52°, with overnight lows between 24° and 34°. The average high for December is 43° 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 Athens. See also: January | February | March.