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