Skip to main content
Every Australian forecast, compared
checkweather.io
CheckWeather AUPerth
Forecast confidence: High · models disagree by 1°C

Perth weather

Loading live data…

Light drizzle,warmer tomorrow

European, the American and the German model agree on a high near 18° in Perth today. Tomorrow looks partly cloudy around 22°, with a 0% chance of rain.

18°12°
22°11°
21°13°
21°11°
23°13°
24°16°
Todaymodels agreeTomorrowmodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±2°Fridaymodels agree
EuropeanECMWF
18°
Light drizzle
Today 18°·Low 12°·Rain 84%
AmericanNOAA GFS
18°
Cloudy
Today 18°·Low 12°·Rain 94%
GermanDWD ICON
18°
Showers
Today 18°·Low 13°·Rain 60%

The weather map: all three models at once

European, American, German side by side around Perth and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Light drizzle
18° 12°
models agree
Tomorrow
Partly cloudy
22° 11°
models agree
Tue
Cloudy
21° 13°
models agree
Wed
Mostly clear
21° 11°
models agree
Thu
Partly cloudy
23° 13°
±2°
Fri
Light drizzle
24° 16°
models agree
Sat
Drizzle
20° 15°
±2°
Sun
Light drizzle
20° 13°
±3°
Mon
Partly cloudy
22° 11°
models agree
Tue
Clear
24° 12°
models agree
Wed
Partly cloudy
24° 14°
±3°
Thu
Light rain
21° 12°
±6°
Fri
Cloudy
17° 11°
models agree
Sat
Light drizzle
19° 13°
models agree

Perth, Western Australia. Below we compare what European, American, German forecast for Perth right now and flag exactly where they disagree, then break down Perth's weather month by month and which forecast model has been most accurate here.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Australia before you trust any single number.

Perth weather by month

what to expect in Perth through the year

Here is Perth's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Perth by season.

Jan
30°
19°
Hot
Feb
32°
20°
Hot
Mar
29°
18°
Hot
Apr
25°
15°
Warm
May
23°
13°
Warm
Jun
17°
10°
Mild
Wettest
Jul
18°
11°
Mild
Aug
18°
11°
Mild
Sep
20°
12°
Mild
Oct
23°
13°
Warm
Nov
27°
16°
Warm
Dec
29°
19°
Hot

What Perth's weather is like through the year

Perth runs from warm summers, with February highs near 32°C, to cold winters, when June lows sit around 10°C (a swing of about 22°C across the year). June is usually the wettest month, and Perth sees roughly 615 mm of precipitation annually.

Best time to visit Perth

The most comfortable time to visit Perth is usually April, May, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest June rain is behind you.

Which forecast is most accurate in Perth?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
87
/100rank #1
88±0.7°C94±3.2 km/t8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
83
/100rank #2
78±1.2°C93±3.5 km/t8290% hitNOAA / NCEP (United States)College Park, Maryland, USA
G
German
79
/100rank #3
73±1.5°C94±3.0 km/t7687% hitDeutscher Wetterdienst (DWD)Offenbach am Main, Germany

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1493 cities. Lower error means a higher score. See which forecast model is most accurate in Australia, how we measure forecast accuracy, or which model each weather app uses.

Bottom line: over the last 30 days the European model has been the most accurate forecast for Perth, scoring 87/100 on our CheckWeather Score, ahead of the American at 83. See the full AU accuracy scoreboard for exactly how every model is tested.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°18° to 18°±34%60% to 94% chance
Tomorrowmodels agree22° to 22°models agree0% to 0% chance
Tue±1°20° to 22°models agree0% to 0% chance
Wed±1°20° to 21°models agree0% to 0% chance
Thu±2°22° to 25°models agree0% to 0% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Perth

today, local time
Sunrise
06:26
Sunset
18:02
Daylight
11h 36m

Common questions

What's the weather in Perth today?
On this page we show what European, American, German each forecast for Perth today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Perth today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from European, American, German for Perth and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Perth?
Over the last 30 days, the European model has been the most accurate for Perth (CheckWeather Score 87/100), ahead of the American at 83. We grade every model against the recorded weather. See the AU accuracy scoreboard for the full method.
What is the warmest month in Perth?
February is typically the warmest month in Perth, with average highs around 32°C.
How cold does Perth get?
The coldest month in Perth is June, when overnight lows average about 10°C.
How much rain does Perth get?
Perth sees roughly 615 mm of precipitation a year, with June usually the wettest month.
When is the best time to visit Perth?
The most comfortable time to visit Perth is usually April, May, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest June rain is behind you.
Does it snow in Perth?
Rarely - Perth very seldom sees overnight lows drop below freezing, so lasting snow is unusual.

Nearby

More AU weather