S
M
T
W
T
F
S
29
24°
20°
30
30°
14°
31
35°
8°
1
40°
16°
2
32°
28°
3
48°
18°
4
47°
25°
5
34°
27°
6
40°
26°
7
43°
26°
8
43°
26°
9
46°
24°
10
60°
26°
11
58°
30°
12
41°
26°
13
44°
25°
14
53°
30°
15
45°
24°
16
37°
25°
17
39°
26°
18
47°
27°
19
42°
25°
20
44°
22°
21
54°
30°
22
47°
27°
23
46°
26°
24
45°
26°
25
46°
27°
26
47°
26°
27
47°
27°
28
48°
31°
29
49°
29°
30
51°
31°
1
57°
34°
2
56°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Half Moon Bay
Half Moon Bay's April 2026 forecast shows daily high temperatures ranging from 37° to 60°, with overnight lows between 22° and 34°. The average high for April is 48° with an average low of 27°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Half Moon Bay. See also: May | June | July.
