S
M
T
W
T
F
S
30
92°
74°
31
91°
76°
1
91°
77°
2
93°
72°
3
91°
71°
4
90°
72°
5
89°
73°
6
90°
75°
7
91°
76°
8
94°
76°
9
93°
75°
10
94°
76°
11
94°
74°
12
91°
75°
13
93°
76°
14
94°
71°
15
91°
70°
16
89°
72°
17
88°
71°
18
89°
72°
19
89°
73°
20
88°
73°
21
88°
72°
22
89°
73°
23
88°
72°
24
87°
73°
25
87°
72°
26
88°
71°
27
89°
72°
28
88°
72°
29
87°
71°
30
86°
72°
1
86°
71°
2
87°
70°
3
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Corpus Christi
Corpus Christi's September 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 66° and 77°. The average high for September is 90° with an average low of 73°. 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 Corpus Christi. See also: October | November | December.
