S
M
T
W
T
F
S
30
86°
62°
31
90°
58°
1
84°
63°
2
80°
61°
3
82°
58°
4
86°
56°
5
N/A
6
72°
47°
7
73°
49°
8
76°
54°
9
79°
53°
10
81°
59°
11
77°
59°
12
72°
53°
13
70°
52°
14
68°
50°
15
68°
51°
16
70°
49°
17
71°
51°
18
67°
52°
19
73°
55°
20
72°
54°
21
70°
53°
22
70°
52°
23
65°
52°
24
68°
53°
25
70°
52°
26
70°
51°
27
69°
48°
28
60°
47°
29
59°
42°
30
59°
41°
1
66°
48°
2
66°
45°
3
60°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cernu
Cernu's September 2026 forecast shows daily high temperatures ranging from 59° to 81°, with overnight lows between 41° and 59°. The average high for September is 69° with an average low of 51°. 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 Cernu. See also: October | November | December.
