S
M
T
W
T
F
S
30
89°
68°
31
88°
67°
1
89°
68°
2
87°
67°
3
88°
68°
4
87°
67°
5
90°
68°
6
88°
69°
7
87°
68°
8
86°
67°
9
Hist. Avg.
83°
68°
10
Hist. Avg.
83°
68°
11
Hist. Avg.
83°
68°
12
Hist. Avg.
82°
67°
13
Hist. Avg.
82°
67°
14
Hist. Avg.
82°
67°
15
Hist. Avg.
82°
67°
16
Hist. Avg.
82°
67°
17
Hist. Avg.
81°
66°
18
Hist. Avg.
81°
66°
19
Hist. Avg.
81°
66°
20
Hist. Avg.
81°
66°
21
Hist. Avg.
80°
66°
22
Hist. Avg.
80°
66°
23
Hist. Avg.
80°
65°
24
Hist. Avg.
80°
65°
25
Hist. Avg.
80°
65°
26
Hist. Avg.
79°
65°
27
Hist. Avg.
79°
65°
28
Hist. Avg.
79°
64°
29
Hist. Avg.
79°
64°
30
Hist. Avg.
79°
64°
1
Hist. Avg.
78°
64°
2
Hist. Avg.
78°
64°
3
Hist. Avg.
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kos
Kos's September 2026 forecast shows daily high temperatures ranging from 86° to 90°, with overnight lows between 67° and 69°. The average high for September is 88° with an average low of 68°. 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 Kos. See also: October | November | December.
