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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Reef Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
South Perth’s weather today is mild and mostly sunny, with a light afternoon sea breeze off the Swan River. The live forecast above shows the current conditions and the afternoon high. Expect a typical late-autumn day: clear skies, low humidity, and a gentle south-westerly wind picking up around midday.
What is the typical weather pattern for South Perth in autumn?
Autumn in South Perth means warm days and cool nights. Morning temperatures often sit around 12–15°C, rising to 22–26°C by the afternoon. The city’s position on the Swan River means a regular sea breeze kicks in from the south-west after lunch, dropping the temperature a few degrees. Rain is infrequent this time of year, with most autumn days staying dry and sunny.
How does the river affect South Perth’s local weather?
The Swan River moderates South Perth’s microclimate. In the morning, the water keeps the air slightly warmer than inland suburbs. By the afternoon, the sea breeze funnels up the river, cooling the foreshore areas faster than places further east. This river effect also means fog can form on calm winter mornings, but it usually clears by mid-morning.
Is the bom perth radar useful for South Perth?
Yes. The bom perth radar at Serpentine covers South Perth well. It shows rain bands moving in from the west or south-west, giving you about 30–60 minutes of warning before showers arrive.
Where can I find a south perth weather hourly forecast?
The Bureau of Meteorology provides an hourly breakdown for South Perth on its website. The bom perth today hourly page updates every 30 minutes and includes temperature, wind speed, and chance of rain for each hour ahead.
Should I check the weather perth 14 days forecast for planning?
A weather perth 14 days forecast gives a general trend but becomes less reliable after day 7. For South Perth, the bom perth 7 day forecast is more accurate for planning outdoor activities or boat trips on the river.
For broader conditions across the state, see our Perth Weather page. If you are travelling east, check the Melbourne Weather forecast.