S
M
T
W
T
F
S
31
65°
54°
1
72°
55°
2
76°
57°
3
69°
60°
4
65°
55°
5
58°
51°
6
59°
50°
7
64°
52°
8
61°
52°
9
60°
52°
10
65°
50°
11
67°
56°
12
72°
57°
13
77°
61°
14
80°
63°
15
78°
63°
16
75°
57°
17
72°
55°
18
71°
56°
19
68°
52°
20
69°
57°
21
66°
56°
22
65°
57°
23
66°
56°
24
70°
57°
25
70°
58°
26
69°
58°
27
71°
57°
28
70°
57°
29
66°
58°
30
68°
58°
1
67°
57°
2
70°
59°
3
68°
58°
4
70°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Halfmoon Bay
Halfmoon Bay's June 2026 forecast shows daily high temperatures ranging from 59° to 80°, with overnight lows between 50° and 63°. The average high for June is 69° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Halfmoon Bay. See also: July | August | September.