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Perth Weather Forcast

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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Watch Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.

17°C
Partly cloudyPerthFeels like 14° · Wind 14 km/h · Humidity 58%
UV 3 ModerateSunrise 07:14Sunset 17:31
Today🌦️18°13°💧100%
Sun🌦️17°10°💧33%
Mon🌦️16°💧33%
Tue🌦️17°💧14%
Wed☁️16°💧0%
Thu☀️17°💧0%
Fri☁️18°💧8%

Live data from Open-Meteo · updates automatically ·

Check the live forecast above for Perth’s current conditions, then plan your day around the key takeaway: Perth’s weather is dominated by a classic Mediterranean climate, meaning hot, dry summers and mild, wet winters, so the main variable is whether a sea breeze will cool the afternoon.

What makes Perth’s weather different from other Australian cities?

Perth sits on the Swan River estuary, bordered by the Indian Ocean to the west and the Darling Scarp to the east. This geography creates a reliable “Fremantle Doctor” — a cooling afternoon sea breeze that often drops temperatures by 5–10°C in summer. In winter, cold fronts from the Southern Ocean bring most of the city’s annual rainfall, typically between May and August. Unlike Sydney or Brisbane, Perth rarely sees humidity above 60% in summer, making the heat feel more bearable.

How should I read the live forecast for Perth?

The live forecast above shows temperature, wind speed and direction, and rain probability. Focus on the wind: if it’s blowing from the southwest or west, expect the sea breeze to arrive by early afternoon. If it’s from the east or northeast, the day will stay hot and still. Rain probability above 30% in winter usually means a front is passing, so carry a light jacket.

Average summer max31°C (January)
Average winter max18°C (July)
Annual rainfall~730 mm
Wettest monthJuly (170 mm average)
Does Perth get thunderstorms?

Yes, but mainly in spring and early summer when hot inland air meets the sea breeze. They are usually brief and isolated, not like the severe storms in eastern Australia.

When is the best time to visit Perth for weather?

March to May and September to November offer mild temperatures (20–28°C), low humidity, and fewer rainy days. Summer can be very hot, especially in January and February.

Why does the forecast sometimes say “possible shower” in summer?

That usually refers to a weak trough moving across the southwest. Showers are rare in summer and typically light, often clearing by mid-morning.

For broader conditions across the country, visit our Australia weather hub. If you’re comparing Perth with other capitals, see our Sydney Weather or Melbourne Weather pages.