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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie 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 ·
Onslow weather is hot and arid, with summer highs often topping 40°C and very little rain most of the year. The live forecast above gives today’s conditions; for a longer view, check the onslow weather 14 day forecast to plan ahead.
What is the typical climate in Onslow?
Onslow sits on the Pilbara coast, giving it a tropical desert climate. Summer (December–February) is extremely hot and humid, with overnight lows rarely below 25°C. Winter (June–August) is warm and sunny, with daytime temperatures around 25°C and cool nights. Most rain falls in summer from thunderstorms or tropical cyclones; the annual average is about 300 mm. For current conditions, onslow weather observations at the Bureau of Meteorology update every ten minutes.
How reliable is the Onslow forecast?
The Bureau of Meteorology provides the official onslow weather bom forecast, which is the most reliable source for the region. Short-term forecasts (1–3 days) are highly accurate, while the 14-day outlook gives a useful trend but may shift. For real-time movement, use the onslow weather radar from the Bureau’s Learmonth radar, covering 256 km around Onslow.
Does Onslow get cyclones?
Yes, Onslow lies in the cyclone zone. Most cyclones occur between November and April, bringing heavy rain and destructive winds. Check the onslow weather 14 day forecast during summer and watch for severe weather warnings.
What was the weather like in Onslow yesterday?
You can find onslow weather yesterday by using the Bureau of Meteorology’s historical observations page. Typical summer days: hot with a seabreeze; winter: clear and mild.
Is the Onslow weather radar accurate?
The onslow weather radar (Learmonth) is reliable for detecting rain and storms within 256 km. It updates every 10 minutes and is a key tool for short-term planning, especially during the wet season.
Sources
For broader conditions, see our Australia weather hub or the Perth weather page for comparison with the state’s capital.