S
M
T
W
T
F
S
30
91°
72°
31
90°
66°
1
86°
66°
2
86°
67°
3
87°
67°
4
90°
69°
5
90°
70°
6
89°
70°
7
86°
66°
8
86°
64°
9
84°
63°
10
84°
63°
11
85°
62°
12
83°
62°
13
82°
63°
14
82°
62°
15
83°
63°
16
82°
62°
17
83°
65°
18
85°
67°
19
87°
66°
20
85°
62°
21
80°
60°
22
80°
58°
23
Hist. Avg.
83°
59°
24
Hist. Avg.
83°
58°
25
Hist. Avg.
82°
58°
26
Hist. Avg.
82°
58°
27
Hist. Avg.
82°
57°
28
Hist. Avg.
82°
57°
29
Hist. Avg.
81°
57°
30
Hist. Avg.
81°
56°
1
Hist. Avg.
80°
56°
2
Hist. Avg.
80°
55°
3
Hist. Avg.
80°
55°
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 80° to 91°, with overnight lows between 58° and 72°. The average high for September is 85° with an average low of 65°. 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.
