S
M
T
W
T
F
S
30
90°
77°
31
91°
78°
1
N/A
2
88°
68°
3
86°
68°
4
88°
69°
5
86°
71°
6
87°
70°
7
86°
69°
8
85°
70°
9
85°
70°
10
86°
69°
11
84°
65°
12
85°
65°
13
84°
66°
14
83°
66°
15
82°
65°
16
82°
66°
17
83°
65°
18
82°
66°
19
83°
66°
20
84°
65°
21
82°
65°
22
82°
66°
23
83°
66°
24
82°
65°
25
83°
66°
26
83°
66°
27
82°
64°
28
82°
64°
29
83°
66°
30
82°
66°
1
83°
65°
2
82°
66°
3
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Castañer
Castañer's September 2026 forecast shows daily high temperatures ranging from 82° to 88°, with overnight lows between 64° and 71°. The average high for September is 84° with an average low of 67°. 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 Castañer. See also: October | November | December.
