S
M
T
W
T
F
S
30
77°
52°
31
80°
54°
1
83°
50°
2
76°
49°
3
75°
50°
4
77°
57°
5
80°
58°
6
83°
54°
7
80°
56°
8
75°
56°
9
74°
55°
10
80°
56°
11
76°
54°
12
76°
56°
13
73°
54°
14
73°
48°
15
71°
47°
16
70°
45°
17
71°
51°
18
72°
52°
19
77°
54°
20
79°
53°
21
76°
48°
22
73°
45°
23
68°
51°
24
69°
47°
25
74°
43°
26
66°
49°
27
73°
50°
28
73°
50°
29
Hist. Avg.
69°
45°
30
Hist. Avg.
69°
44°
1
Hist. Avg.
68°
44°
2
Hist. Avg.
68°
44°
3
Hist. Avg.
68°
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 43° and 58°. The average high for September is 75° with an average low of 51°. 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.
