S
M
T
W
T
F
S
30
80°
54°
31
83°
53°
1
82°
44°
2
77°
46°
3
73°
50°
4
76°
53°
5
78°
54°
6
79°
46°
7
78°
44°
8
74°
45°
9
74°
52°
10
71°
52°
11
78°
50°
12
74°
47°
13
71°
48°
14
68°
45°
15
69°
42°
16
68°
41°
17
68°
48°
18
69°
41°
19
67°
46°
20
69°
49°
21
72°
46°
22
71°
39°
23
67°
42°
24
66°
46°
25
66°
39°
26
66°
37°
27
Hist. Avg.
67°
45°
28
Hist. Avg.
66°
45°
29
Hist. Avg.
66°
44°
30
Hist. Avg.
66°
44°
1
Hist. Avg.
65°
44°
2
Hist. Avg.
65°
43°
3
Hist. Avg.
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Athens
Athens's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 37° and 54°. The average high for September is 73° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Athens. See also: October | November | December.
