S
M
T
W
T
F
S
30
82°
61°
31
76°
58°
1
77°
54°
2
80°
53°
3
77°
57°
4
77°
58°
5
79°
59°
6
76°
61°
7
84°
62°
8
86°
65°
9
96°
66°
10
87°
70°
11
83°
63°
12
80°
62°
13
81°
58°
14
80°
59°
15
76°
61°
16
77°
63°
17
79°
61°
18
80°
63°
19
84°
64°
20
81°
63°
21
81°
64°
22
79°
62°
23
80°
64°
24
76°
59°
25
75°
62°
26
80°
63°
27
79°
62°
28
77°
62°
29
79°
61°
30
80°
62°
1
80°
63°
2
79°
63°
3
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Santa Barbara
Santa Barbara's September 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 58° and 64°. The average high for September is 79° with an average low of 62°. 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 Barbara. See also: October | November | December.
