This reference page collects perth climate: monthly averages in one place: annual mean temperature 19.1 C; warmest month Feb (23.4 C); coldest month Aug (15.6 C); wettest month Jul (4.14 mm/day). Figures are refreshed automatically by a scheduled build and cached locally so the page keeps its values even when the upstream API is temporarily unavailable. Use the table below for exact numbers, or the related pages for the same dataset for neighbouring periods and locations.
Annual mean temperature 19.1 C
Warmest month Feb (23.4 C)
Coldest month Aug (15.6 C)
Wettest month Jul (4.14 mm/day)
All-time record high 37.8 C
All-time record low 8.3 C
Annual precipitation 661 mm / year
Coordinates -31.9505, 115.8605
Population 2,100,000
Average monthly temperature and rainfall in Perth
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
22.8
0.58
37.8
13.3
Feb
23.4
0.59
36.8
14.8
Mar
22.5
0.64
37.3
13.4
Apr
20.4
1.14
31.4
12.9
May
18.4
2.71
28.0
11.3
Jun
16.7
3.78
23.7
9.5
Jul
15.7
4.14
22.2
8.9
Aug
15.6
3.43
24.1
8.4
Sep
15.8
2.32
25.6
8.3
Oct
17.2
1.04
31.1
10.0
Nov
19.3
0.83
34.8
10.8
Dec
21.2
0.39
36.3
12.9
What the Perth climate table shows
Values are multi-decadal climatological averages for the -31.9505, 115.8605 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Where does the data on perth climate: monthly averages come from?
From a public open API that is queried automatically and cached after every successful run.
How often is perth climate: monthly averages updated?
The build runs on a schedule, so values refresh at least daily and old pages stay live.