10-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Mainly clear
18°
Feels like 18°
Wind↑ ESE 16 km/h
Gusts30 km/h
Humidity 49 %
Afternoon
Mainly clear
22°
Feels like 24°
Wind↑ SW 29 km/h
Humidity 53 %
11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Overcast
19°
Feels like 19°
Wind↑ E 21 km/h
Gusts28 km/h
Humidity 60 %
💧 0.1 mm
Afternoon
Light rain
16°
Feels like 16°
Wind↑ SE 16 km/h
Gusts28 km/h
Humidity 84 %
💧 2.2 mm
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Light rain
14°
Feels like 14°
Wind↑ S 26 km/h
Gusts46 km/h
Humidity 87 %
💧 1.4 mm
Afternoon
Light rain
15°
Feels like 15°
Wind↑ S 45 km/h
Gusts68 km/h
Humidity 86 %
💧 4.5 mm
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Light rain
15°
Feels like 15°
Wind↑ SSE 30 km/h
Gusts47 km/h
Humidity 80 %
💧 1.1 mm
Afternoon
Mainly clear
20°
Feels like 22°
Wind↑ SSW 22 km/h
Humidity 56 %
💧 0.1 mm
Perth forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Perth climate: what a normal year looks like
Swimmers find the warmest sea in March (23 °C) and the coolest in September (19 °C).
A normal year brings roughly 570 mm of rain — less than 84% of the towns of 20,000+ people we compared it with.
The wet season is concentrated from June to August, which brings 51% of the annual total; July by itself averages 104 mm.
The hottest stretch is February, when afternoons average 30 °C; the coldest is July, when nights average 10 °C.
Forecast highs for the coming week average 20 °C, 1 °C cooler than a normal October (21 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Sea
Jan
30 °C
19 °C
19 mm
22 °C
Feb
30 °C
20 °C
18 mm
22 °C
Mar
28 °C
18 °C
20 mm
23 °C
Apr
25 °C
16 °C
27 mm
22 °C
May
21 °C
13 °C
68 mm
22 °C
Jun
18 °C
11 °C
98 mm
21 °C
Jul
17 °C
10 °C
104 mm
20 °C
Aug
18 °C
10 °C
93 mm
19 °C
Sep
19 °C
11 °C
61 mm
19 °C
Oct
21 °C
12 °C
32 mm
19 °C
Nov
25 °C
15 °C
22 mm
20 °C
Dec
28 °C
18 °C
12 mm
21 °C
Whole year
23 °C
15 °C
570 mm
21 °C
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 31.95° S, 115.86° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Perth: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.57µg/m³
PM107µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Perth
Rain observed over the last two hours by official weather radars around Perth, followed by the radar forecast for the next hour where the weather service provides one.
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Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Perth yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Perth
Waning gibbous
79 % illuminated · 19.3 days
Rise 20:12 Set 05:24
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Wed11/113%
Moonrise and moonset in local time (Australia/Perth); phase and lit fraction from a synodic calculation.
Sea and tides near Perth
Tide station used: Perth Barrack Street Jetty
🌊 Sea surface
19.1 °C
satellite, 30/10
Sea state
Smooth
waves 1.0 m
Period
12 s
Swell
0.9 m
ThuThu 29/10
Low tide10:580.1 m
TodayFri 30/10
High tide00:340.7 m
Low tide12:110.1 m
TomorrowSat 31/10
High tide01:070.7 m
Low tide13:210.1 m
SunSun 01/11
High tide01:380.6 m
Low tide14:170.1 m
Indicative heights above chart datum. Coefficient: 20 for the weakest tides, 120 for the strongest. · more tide detail on TidesAtlas
Look up a past day in Perth
Curious about the weather in Perth on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Perth weather at a glance
This page gathers everything about the weather in Perth, Western Australia: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “clear sky”, it is 17 °C (feels like 17 °C) and the wind blows at 12 km/h.
Expected range today: 16 °C to 21 °C and around 2 mm of rain. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms, plus the tide times for Perth Barrack Street Jetty.
Perth weather data for developers
Use the Perth forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
