S
M
T
W
T
F
S
26
67°
60°
27
65°
59°
28
65°
59°
29
64°
55°
30
64°
57°
31
65°
58°
1
64°
58°
2
65°
53°
3
64°
49°
4
64°
57°
5
65°
59°
6
65°
59°
7
64°
57°
8
64°
58°
9
63°
57°
10
64°
59°
11
64°
58°
12
64°
57°
13
66°
58°
14
66°
60°
15
65°
59°
16
65°
58°
17
64°
58°
18
64°
57°
19
62°
58°
20
64°
55°
21
65°
59°
22
64°
57°
23
64°
55°
24
65°
59°
25
65°
59°
26
65°
56°
27
68°
58°
28
63°
57°
29
63°
58°
30
65°
59°
31
64°
58°
1
66°
57°
2
69°
54°
3
69°
56°
4
68°
52°
5
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Half Moon Bay
Half Moon Bay's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Half Moon Bay. See also: September | October | November.
