S
M
T
W
T
F
S
30
84°
61°
31
88°
60°
1
86°
61°
2
83°
56°
3
82°
57°
4
81°
56°
5
82°
57°
6
80°
59°
7
82°
58°
8
82°
58°
9
83°
57°
10
84°
60°
11
85°
60°
12
84°
54°
13
78°
54°
14
79°
55°
15
82°
57°
16
82°
59°
17
79°
61°
18
77°
58°
19
81°
52°
20
76°
53°
21
75°
56°
22
79°
58°
23
81°
59°
24
80°
59°
25
80°
58°
26
79°
59°
27
80°
58°
28
78°
57°
29
75°
56°
30
76°
52°
1
73°
51°
2
72°
50°
3
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Aix-en-Provence
Aix-en-Provence's September 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 50° and 61°. The average high for September is 80° with an average low of 57°. 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 Aix-en-Provence. See also: October | November | December.