S
M
T
W
T
F
S
27
63°
49°
28
62°
47°
29
63°
50°
30
64°
50°
1
69°
52°
2
64°
52°
3
65°
50°
4
69°
53°
5
71°
53°
6
71°
54°
7
72°
54°
8
72°
53°
9
71°
52°
10
70°
53°
11
71°
52°
12
70°
52°
13
66°
45°
14
62°
48°
15
63°
46°
16
63°
46°
17
62°
44°
18
62°
45°
19
64°
47°
20
66°
50°
21
69°
51°
22
69°
48°
23
62°
51°
24
62°
51°
25
64°
49°
26
62°
44°
27
62°
43°
28
62°
44°
29
61°
42°
30
62°
45°
31
64°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Half Moon Bay
Half Moon Bay's October 2026 forecast shows daily high temperatures ranging from 61° to 72°, with overnight lows between 42° and 54°. The average high for October is 66° with an average low of 49°. 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 Half Moon Bay. See also: November | December | January.
