S
M
T
W
T
F
S
28
72°
50°
29
73°
53°
30
78°
60°
1
80°
55°
2
73°
58°
3
76°
53°
4
75°
54°
5
81°
53°
6
82°
52°
7
82°
60°
8
81°
61°
9
74°
58°
10
75°
60°
11
74°
55°
12
81°
56°
13
82°
59°
14
81°
53°
15
78°
57°
16
81°
54°
17
79°
53°
18
77°
52°
19
76°
57°
20
75°
56°
21
74°
56°
22
76°
51°
23
78°
56°
24
83°
56°
25
Hist. Avg.
81°
61°
26
Hist. Avg.
81°
61°
27
Hist. Avg.
81°
60°
28
Hist. Avg.
80°
60°
29
Hist. Avg.
80°
60°
30
Hist. Avg.
80°
60°
31
Hist. Avg.
80°
60°
1
Hist. Avg.
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Perth
Perth's July 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 50° and 61°. The average high for July is 78° 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 July weather will actually feel in Perth. See also: August | September | October.