S
M
T
W
T
F
S
30
84°
61°
31
83°
59°
1
83°
58°
2
82°
56°
3
83°
58°
4
83°
58°
5
84°
59°
6
82°
59°
7
83°
58°
8
82°
55°
9
80°
57°
10
Hist. Avg.
78°
61°
11
Hist. Avg.
78°
61°
12
Hist. Avg.
77°
60°
13
Hist. Avg.
77°
60°
14
Hist. Avg.
77°
60°
15
Hist. Avg.
77°
60°
16
Hist. Avg.
77°
60°
17
Hist. Avg.
76°
59°
18
Hist. Avg.
76°
59°
19
Hist. Avg.
76°
59°
20
Hist. Avg.
76°
59°
21
Hist. Avg.
76°
59°
22
Hist. Avg.
75°
58°
23
Hist. Avg.
75°
58°
24
Hist. Avg.
75°
58°
25
Hist. Avg.
75°
58°
26
Hist. Avg.
75°
58°
27
Hist. Avg.
74°
58°
28
Hist. Avg.
74°
57°
29
Hist. Avg.
74°
57°
30
Hist. Avg.
74°
57°
1
Hist. Avg.
74°
57°
2
Hist. Avg.
73°
57°
3
Hist. Avg.
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cannes
Cannes's September 2026 forecast shows daily high temperatures ranging from 80° to 84°, with overnight lows between 55° and 61°. The average high for September is 83° with an average low of 58°. 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 Cannes. See also: October | November | December.