S
M
T
W
T
F
S
30
75°
69°
31
74°
68°
1
75°
69°
2
74°
67°
3
75°
68°
4
75°
68°
5
79°
73°
6
78°
73°
7
79°
73°
8
78°
73°
9
Hist. Avg.
82°
65°
10
Hist. Avg.
82°
65°
11
Hist. Avg.
82°
65°
12
Hist. Avg.
82°
64°
13
Hist. Avg.
81°
64°
14
Hist. Avg.
81°
64°
15
Hist. Avg.
81°
64°
16
Hist. Avg.
80°
64°
17
Hist. Avg.
80°
63°
18
Hist. Avg.
80°
63°
19
Hist. Avg.
80°
63°
20
Hist. Avg.
79°
63°
21
Hist. Avg.
79°
63°
22
Hist. Avg.
79°
62°
23
Hist. Avg.
79°
62°
24
Hist. Avg.
78°
62°
25
Hist. Avg.
78°
62°
26
Hist. Avg.
78°
62°
27
Hist. Avg.
78°
61°
28
Hist. Avg.
77°
61°
29
Hist. Avg.
77°
61°
30
Hist. Avg.
77°
61°
1
Hist. Avg.
77°
61°
2
Hist. Avg.
76°
60°
3
Hist. Avg.
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Zakynthos
Zakynthos's September 2026 forecast shows daily high temperatures ranging from 74° to 79°, with overnight lows between 67° and 73°. The average high for September is 76° with an average low of 70°. 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 Zakynthos. See also: October | November | December.