S
M
T
W
T
F
S
27
73°
69°
28
74°
66°
29
73°
62°
30
70°
67°
1
72°
65°
2
77°
66°
3
97°
67°
4
84°
73°
5
83°
67°
6
80°
70°
7
74°
69°
8
74°
70°
9
78°
66°
10
76°
66°
11
70°
63°
12
70°
57°
13
70°
54°
14
74°
60°
15
79°
62°
16
84°
61°
17
85°
64°
18
81°
61°
19
82°
64°
20
82°
64°
21
79°
65°
22
72°
58°
23
76°
62°
24
75°
62°
25
75°
61°
26
74°
61°
27
75°
60°
28
75°
61°
29
74°
60°
30
73°
60°
31
73°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Cardiff-by-the-Sea
Cardiff-by-the-Sea's October 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 54° and 66°. The average high for October is 76° 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 October weather will actually feel in Cardiff-by-the-Sea. See also: November | December | January.
