S
M
T
W
T
F
S
30
96°
59°
1
103°
59°
2
94°
57°
3
84°
60°
4
82°
55°
5
79°
58°
6
85°
56°
7
85°
55°
8
87°
58°
9
87°
61°
10
97°
62°
11
98°
66°
12
97°
67°
13
99°
64°
14
106°
71°
15
95°
69°
16
92°
68°
17
81°
63°
18
89°
60°
19
92°
63°
20
86°
59°
21
84°
56°
22
90°
61°
23
96°
63°
24
102°
65°
25
109°
73°
26
85°
54°
27
80°
47°
28
87°
59°
29
89°
62°
30
90°
62°
31
95°
60°
1
101°
60°
2
105°
71°
3
95°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Perth
Perth's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Perth. See also: January | February | March.
