S
M
T
W
T
F
S
27
83°
62°
28
83°
61°
29
77°
59°
30
75°
58°
1
77°
60°
2
78°
61°
3
82°
60°
4
77°
59°
5
77°
58°
6
78°
56°
7
74°
54°
8
73°
50°
9
72°
51°
10
72°
52°
11
73°
52°
12
74°
53°
13
74°
55°
14
76°
52°
15
75°
55°
16
74°
54°
17
78°
53°
18
77°
51°
19
74°
50°
20
72°
50°
21
73°
52°
22
72°
50°
23
73°
52°
24
72°
53°
25
74°
52°
26
75°
51°
27
71°
49°
28
76°
55°
29
75°
55°
30
Hist. Avg.
76°
53°
31
Hist. Avg.
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in San Clemente
San Clemente's October 2026 forecast shows daily high temperatures ranging from 71° to 83°, with overnight lows between 49° and 62°. The average high for October is 75° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in San Clemente. See also: November | December | January.