S
M
T
W
T
F
S
27
69°
52°
28
69°
53°
29
68°
52°
30
68°
51°
1
66°
51°
2
66°
52°
3
68°
52°
4
70°
50°
5
70°
53°
6
64°
50°
7
63°
44°
8
62°
44°
9
62°
45°
10
63°
47°
11
64°
46°
12
64°
45°
13
65°
47°
14
65°
47°
15
63°
48°
16
63°
49°
17
66°
48°
18
65°
45°
19
63°
46°
20
62°
45°
21
64°
47°
22
63°
46°
23
67°
45°
24
66°
46°
25
66°
45°
26
68°
44°
27
65°
47°
28
63°
49°
29
61°
49°
30
Hist. Avg.
65°
46°
31
Hist. Avg.
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Half Moon Bay
Half Moon Bay's October 2026 forecast shows daily high temperatures ranging from 61° to 70°, with overnight lows between 44° and 53°. The average high for October is 65° 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 Half Moon Bay. See also: November | December | January.
