S
M
T
W
T
F
S
30
88°
80°
31
84°
79°
1
87°
79°
2
83°
79°
3
84°
79°
4
86°
79°
5
88°
79°
6
90°
77°
7
90°
77°
8
88°
79°
9
87°
79°
10
86°
80°
11
85°
80°
12
87°
80°
13
87°
80°
14
87°
80°
15
85°
79°
16
87°
74°
17
87°
75°
18
85°
74°
19
88°
75°
20
89°
75°
21
91°
76°
22
85°
76°
23
85°
75°
24
86°
75°
25
87°
76°
26
85°
76°
27
86°
75°
28
86°
76°
29
87°
76°
30
86°
76°
1
86°
76°
2
84°
75°
3
83°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Santa Maria
Santa Maria's September 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 74° and 80°. The average high for September is 86° with an average low of 77°. 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 Maria. See also: October | November | December.
