S
M
T
W
T
F
S
30
76°
51°
31
74°
47°
1
69°
49°
2
69°
48°
3
68°
46°
4
68°
47°
5
69°
47°
6
69°
48°
7
71°
52°
8
74°
53°
9
68°
46°
10
68°
50°
11
71°
52°
12
70°
50°
13
71°
51°
14
73°
50°
15
68°
45°
16
65°
45°
17
64°
44°
18
66°
51°
19
64°
45°
20
71°
50°
21
64°
41°
22
63°
42°
23
Hist. Avg.
65°
49°
24
Hist. Avg.
64°
49°
25
Hist. Avg.
64°
48°
26
Hist. Avg.
63°
48°
27
Hist. Avg.
63°
48°
28
Hist. Avg.
63°
47°
29
Hist. Avg.
62°
47°
30
Hist. Avg.
62°
47°
1
Hist. Avg.
61°
46°
2
Hist. Avg.
61°
46°
3
Hist. Avg.
61°
46°
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 63° to 76°, with overnight lows between 41° and 53°. The average high for September is 69° with an average low of 48°. 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.
