S
M
T
W
T
F
S
26
67°
58°
27
65°
60°
28
66°
61°
29
67°
60°
30
69°
62°
31
69°
65°
1
70°
62°
2
68°
62°
3
69°
65°
4
72°
64°
5
72°
62°
6
71°
61°
7
70°
61°
8
67°
59°
9
66°
59°
10
66°
60°
11
67°
59°
12
67°
59°
13
66°
60°
14
68°
61°
15
69°
62°
16
67°
63°
17
68°
65°
18
70°
62°
19
Hist. Avg.
70°
62°
20
Hist. Avg.
70°
62°
21
Hist. Avg.
70°
62°
22
Hist. Avg.
70°
62°
23
Hist. Avg.
70°
62°
24
Hist. Avg.
70°
62°
25
Hist. Avg.
70°
62°
26
Hist. Avg.
70°
62°
27
Hist. Avg.
70°
62°
28
Hist. Avg.
70°
62°
29
Hist. Avg.
70°
62°
30
Hist. Avg.
70°
62°
31
Hist. Avg.
70°
62°
1
Hist. Avg.
71°
62°
2
Hist. Avg.
71°
62°
3
Hist. Avg.
71°
62°
4
Hist. Avg.
71°
62°
5
Hist. Avg.
71°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Santa Monica
Santa Monica's August 2026 forecast shows daily high temperatures ranging from 65° to 72°, with overnight lows between 58° and 65°. The average high for August is 68° 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 Monica. See also: September | October | November.