S
M
T
W
T
F
S
30
70°
63°
31
70°
63°
1
68°
61°
2
73°
57°
3
72°
64°
4
72°
64°
5
68°
59°
6
77°
57°
7
73°
64°
8
66°
63°
9
64°
59°
10
66°
59°
11
68°
61°
12
68°
61°
13
70°
63°
14
72°
61°
15
68°
61°
16
66°
61°
17
64°
57°
18
66°
61°
19
68°
59°
20
68°
59°
21
68°
52°
22
73°
54°
23
70°
55°
24
71°
59°
25
80°
59°
26
66°
56°
27
75°
61°
28
71°
62°
29
82°
70°
30
79°
63°
1
69°
59°
2
68°
60°
3
68°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Étretat
Étretat's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 56° and 70°. The average high for September is 73° with an average low of 61°. 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 Étretat. See also: October | November | December.