S
M
T
W
T
F
S
26
80°
68°
27
78°
67°
28
78°
66°
29
78°
67°
30
78°
67°
31
81°
66°
1
79°
66°
2
79°
67°
3
77°
68°
4
77°
66°
5
77°
68°
6
78°
67°
7
83°
67°
8
80°
67°
9
81°
68°
10
79°
69°
11
80°
69°
12
77°
68°
13
78°
68°
14
78°
68°
15
76°
67°
16
78°
67°
17
78°
65°
18
82°
67°
19
80°
66°
20
78°
66°
21
79°
68°
22
80°
68°
23
80°
69°
24
82°
70°
25
86°
74°
26
79°
68°
27
78°
67°
28
77°
68°
29
76°
67°
30
76°
65°
31
72°
66°
1
72°
65°
2
73°
66°
3
71°
62°
4
70°
62°
5
74°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Santa Monica
Santa Monica's August 2026 forecast shows daily high temperatures ranging from 70° to 86°, with overnight lows between 62° and 74°. The average high for August is 77° with an average low of 67°. 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.
