S
M
T
W
T
F
S
26
74°
63°
27
76°
65°
28
72°
64°
29
72°
66°
30
75°
64°
31
74°
66°
1
72°
66°
2
73°
66°
3
72°
65°
4
72°
62°
5
72°
61°
6
73°
63°
7
79°
63°
8
79°
62°
9
79°
64°
10
79°
64°
11
78°
65°
12
74°
63°
13
72°
64°
14
72°
64°
15
73°
62°
16
72°
60°
17
74°
61°
18
75°
60°
19
76°
62°
20
74°
62°
21
82°
67°
22
82°
67°
23
85°
67°
24
85°
66°
25
85°
70°
26
93°
67°
27
90°
67°
28
88°
65°
29
90°
64°
30
89°
64°
31
86°
63°
1
86°
62°
2
87°
65°
3
82°
60°
4
79°
60°
5
83°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in San Clemente
San Clemente's August 2026 forecast shows daily high temperatures ranging from 79° to 93°, with overnight lows between 60° and 70°. The average high for August is 86° with an average low of 65°. 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 San Clemente. See also: September | October | November.
