S
M
T
W
T
F
S
27
20°
3°
28
25°
-1°
29
20°
17°
30
25°
3°
31
35°
4°
1
18°
4°
2
19°
3°
3
23°
2°
4
19°
2°
5
19°
2°
6
32°
-2°
7
28°
-2°
8
23°
-3°
9
16°
4°
10
17°
14°
11
24°
17°
12
33°
2°
13
36°
-3°
14
22°
-6°
15
12°
-4°
16
13°
-2°
17
14°
-2°
18
14°
-1°
19
15°
-1°
20
15°
5°
21
16°
9°
22
17°
11°
23
19°
7°
24
20°
1°
25
18°
3°
26
15°
10°
27
18°
15°
28
27°
13°
29
29°
7°
30
28°
-1°
31
25°
-2°
1
15°
13°
2
28°
2°
3
30°
0°
4
22°
1°
5
19°
1°
6
18°
-2°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Perth
Perth's January 2027 forecast shows daily high temperatures ranging from 12° to 36°, with overnight lows between -6° and 17°. The average high for January is 21° with an average low of 3°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Perth. See also: February | March | April.
