S
M
T
W
T
F
S
30
76°
60°
31
77°
59°
1
71°
64°
2
70°
64°
3
83°
64°
4
83°
60°
5
76°
59°
6
73°
52°
7
80°
49°
8
79°
52°
9
77°
59°
10
82°
66°
11
77°
47°
12
77°
64°
13
82°
62°
14
76°
45°
15
74°
64°
16
82°
66°
17
78°
65°
18
75°
57°
19
73°
54°
20
69°
54°
21
70°
56°
22
72°
56°
23
73°
58°
24
74°
52°
25
66°
47°
26
66°
48°
27
69°
55°
28
75°
51°
29
66°
47°
30
67°
54°
1
68°
52°
2
65°
49°
3
69°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Athens
Athens's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 45° and 66°. The average high for September is 72° with an average low of 55°. 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.
