S
M
T
W
T
F
S
30
76°
56°
31
75°
55°
1
74°
55°
2
76°
53°
3
76°
54°
4
75°
56°
5
76°
56°
6
77°
55°
7
78°
58°
8
77°
56°
9
72°
56°
10
75°
55°
11
74°
57°
12
75°
57°
13
77°
56°
14
79°
57°
15
78°
56°
16
77°
55°
17
76°
54°
18
76°
57°
19
78°
53°
20
76°
54°
21
Hist. Avg.
75°
53°
22
Hist. Avg.
75°
53°
23
Hist. Avg.
75°
53°
24
Hist. Avg.
75°
53°
25
Hist. Avg.
75°
53°
26
Hist. Avg.
75°
53°
27
Hist. Avg.
75°
53°
28
Hist. Avg.
75°
52°
29
Hist. Avg.
75°
52°
30
Hist. Avg.
75°
52°
1
Hist. Avg.
75°
52°
2
Hist. Avg.
75°
52°
3
Hist. Avg.
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Santa Maria
Santa Maria's September 2026 forecast shows daily high temperatures ranging from 72° to 79°, with overnight lows between 53° and 58°. The average high for September is 76° with an average low of 56°. 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.