S
M
T
W
T
F
S
27
N/A
28
66°
53°
29
70°
62°
30
70°
54°
1
66°
55°
2
68°
54°
3
65°
52°
4
64°
51°
5
63°
50°
6
64°
51°
7
64°
50°
8
63°
51°
9
64°
52°
10
60°
44°
11
61°
49°
12
62°
48°
13
59°
47°
14
58°
46°
15
57°
48°
16
56°
47°
17
59°
48°
18
58°
47°
19
57°
43°
20
55°
45°
21
58°
48°
22
59°
47°
23
59°
42°
24
56°
44°
25
57°
46°
26
55°
41°
27
53°
47°
28
57°
45°
29
54°
44°
30
53°
40°
31
51°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Cardiff
Cardiff's October 2026 forecast shows daily high temperatures ranging from 51° to 70°, with overnight lows between 40° and 62°. The average high for October is 60° with an average low of 48°. 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. See also: November | December | January.
