S
M
T
W
T
F
S
26
80°
64°
27
80°
64°
28
79°
63°
29
80°
62°
30
75°
63°
31
79°
60°
1
80°
63°
2
78°
63°
3
75°
59°
4
75°
61°
5
78°
63°
6
80°
63°
7
80°
62°
8
79°
62°
9
80°
60°
10
80°
59°
11
79°
59°
12
80°
60°
13
80°
60°
14
79°
64°
15
80°
63°
16
79°
62°
17
80°
63°
18
79°
58°
19
75°
58°
20
76°
57°
21
77°
60°
22
77°
57°
23
78°
58°
24
76°
58°
25
76°
57°
26
Hist. Avg.
75°
58°
27
Hist. Avg.
75°
58°
28
Hist. Avg.
75°
57°
29
Hist. Avg.
75°
57°
30
Hist. Avg.
75°
57°
31
Hist. Avg.
75°
57°
1
Hist. Avg.
75°
57°
2
Hist. Avg.
75°
57°
3
Hist. Avg.
75°
57°
4
Hist. Avg.
75°
57°
5
Hist. Avg.
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Santa Barbara
Santa Barbara's August 2026 forecast shows daily high temperatures ranging from 75° to 80°, with overnight lows between 57° and 64°. The average high for August is 78° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Santa Barbara. See also: September | October | November.