S
M
T
W
T
F
S
26
81°
56°
27
82°
57°
28
83°
57°
29
82°
56°
30
83°
56°
31
82°
55°
1
82°
56°
2
81°
54°
3
81°
54°
4
80°
53°
5
79°
54°
6
78°
55°
7
79°
56°
8
79°
53°
9
76°
54°
10
78°
56°
11
81°
56°
12
82°
54°
13
81°
52°
14
80°
53°
15
77°
51°
16
76°
52°
17
81°
56°
18
82°
55°
19
79°
55°
20
80°
54°
21
81°
54°
22
82°
55°
23
82°
57°
24
83°
58°
25
84°
58°
26
83°
57°
27
83°
56°
28
82°
53°
29
78°
56°
30
77°
57°
31
75°
56°
1
76°
51°
2
75°
55°
3
76°
56°
4
80°
57°
5
82°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Muir Beach
Muir Beach's August 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 51° and 58°. The average high for August is 80° with an average low of 55°. 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 Muir Beach. See also: September | October | November.
