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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Current Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Perth’s weather this week will be dominated by a high-pressure system, bringing mainly sunny days and light easterly winds. The live forecast above shows a gradual warming trend, with the coolest mornings early in the week before a slight increase in humidity towards the weekend.
What’s driving Perth’s weather pattern this week?
A slow-moving ridge of high pressure over the Bight is keeping the southwest coast stable. This means clear skies overnight and a steady daytime heating cycle. Mornings will be crisp, particularly if you’re checking the weather in perth tomorrow, but afternoon temperatures will climb a few degrees each day. No significant rain is expected, though a weak trough may brush the coast late in the period, possibly lifting the chance of a shower.
How does this week compare to the long-term outlook?
For those looking at the weather perth 14 days or a 28 day weather forecast perth, this week sits within a generally dry and warm period. The bom 14 day forecast perth suggests a similar pattern extending into the following week, with no strong cold fronts on the horizon. If you’re after a perth weatherzone 14 day forecast or a perth 21 day forecast bom, the signal is for above-average temperatures overall. For a broader view, see our Australia weather hub or the dedicated Perth Weather page.
Will there be a heatwave this week?
No. While temperatures will be above the May average, they remain within a comfortable range for Perth. An extreme heat event is not forecast for this week.
Is this a good week for outdoor plans?
Yes. The stable conditions and low rain chance make it ideal for outdoor activities. Just pack a light jacket for the morning if you’re checking the weather in perth 10 days for planning.
When will the next cool change arrive?
The weather perth 21 days outlook shows a cold front possible around the end of the month. For now, expect dry, settled weather this week.