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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Oz Reviewly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For Dianella, the live forecast above shows today’s conditions for this Perth suburb. With a Mediterranean climate, expect warm, dry summers and mild, wet winters—typical of the Swan Coastal Plain.
What is the typical weather pattern in Dianella?
Dianella experiences hot, mostly clear summers with average January highs around 31°C. Winters are cool and damp, with July lows near 8°C and most rain falling between May and August. The area receives about 730 millimetres of rain annually, concentrated in the cooler months.
How do local features affect Dianella’s weather?
The suburb sits about 10 kilometres north-east of the Perth city centre, on a low-lying plain. Easterly winds often bring dry, hot conditions in summer, while afternoon sea breezes from the Indian Ocean can provide some relief. Frost is rare but can occur on clear winter mornings.
Does Dianella get thunderstorms?
Thunderstorms are not common in Dianella. They occur mostly in spring and early summer, often when a trough moves inland. Severe storms are rare, but can bring brief heavy rain and gusty winds.
Is Dianella affected by sea breezes?
Yes. In summer, a south-westerly sea breeze often arrives in the afternoon, dropping temperatures by several degrees. It can be stronger near the coast but still reaches Dianella, making hot afternoons more tolerable.
What is the hottest month in Dianella?
February is typically the hottest month, with average maximum temperatures around 31°C. January is similar, but February often sees more consecutive hot days due to weaker sea breezes. Heatwaves can push temperatures above 40°C.
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