S
M
T
W
T
F
S
26
68°
50°
27
68°
50°
28
75°
59°
29
72°
52°
30
64°
46°
31
64°
43°
1
66°
48°
2
68°
50°
3
63°
54°
4
72°
57°
5
64°
54°
6
64°
52°
7
N/A
8
67°
56°
9
66°
46°
10
66°
49°
11
69°
53°
12
76°
55°
13
72°
53°
14
70°
53°
15
67°
54°
16
66°
52°
17
66°
51°
18
66°
52°
19
65°
49°
20
62°
50°
21
63°
48°
22
62°
49°
23
62°
49°
24
64°
54°
25
66°
53°
26
63°
52°
27
63°
50°
28
65°
53°
29
66°
52°
30
67°
53°
31
65°
53°
1
64°
51°
2
61°
48°
3
61°
49°
4
62°
50°
5
61°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Perth
Perth's August 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 46° and 56°. The average high for August is 65° with an average low of 51°. 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 Perth. See also: September | October | November.