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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Data Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
You can expect Perth’s typical dry-summer pattern to hold across the next fortnight, but the live forecast above should guide your day-to-day plans – coastal sea breezes and an occasional afternoon shower are the main variables to watch.
What drives Perth’s 14-day pattern?
Perth’s long-range outlook is shaped by the sprawling West Australian heat trough and the occasional passage of cold fronts. For the first week, high pressure usually keeps skies clear, with daytime maxima hovering in the low 30s Celsius. Into the second week, a slight increase in humidity may bring a couple of late-afternoon storms, though rainfall totals are generally low for this season. If you’re after a weather perth 7 days snapshot, the initial week often feels steadier than the more variable second half.
How reliable are extended forecasts for Perth?
Accuracy drops beyond 8–10 days, but combining single-model runs with ensemble data – such as the 28 day weather forecast perth products from the Bureau – gives a useful confidence band. The perth weatherzone 14 day forecast and perth weather 14 day forecast elders both use similar global models, so the broad trends (warmer inland, cooler coast) are consistent. For a deeper view, look at the perth 21 day forecast bom to see how the synoptic pattern evolves.
Does the 7-day forecast change a lot from the 14-day outlook for Perth?
Yes. The bom perth wa 7 day forecast is updated twice daily and is far more reliable for daily plans. The 14-day version gives trends, but individual days after day 7 should be treated as indicative.
What’s the best source for a 28-day Perth outlook?
While the Bureau of Meteorology doesn’t issue 28-day products, aggregators like AccuWeather (perth weather 28 day forecast accuweather) blend multiple global models. Use their probability bars rather than single numbers.
Should I expect hot days in both weeks?
Generally yes – Perth’s summer pattern is reliably warm. However, the weather perth 21 days model often shows a subtle cooling after a frontal passage around day 10–12, so don’t be surprised if week two feels a touch milder.