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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Monitor Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out. Perth’s weather is defined by hot, dry summers and mild, wet winters, shaped by the Indian Ocean and the inland desert.
What’s the typical weather pattern for Perth?
Perth has a Mediterranean climate. Summer (December–February) brings hot, sunny days with average maximums around 31°C, though heatwaves can push temperatures past 40°C. The easterly morning winds often give way to a cooling afternoon sea breeze known as the “Fremantle Doctor.” Winter (June–August) is mild and wet, with average highs of 18°C and most of Perth’s annual rainfall arriving in cold fronts from the Indian Ocean. Spring and autumn are transitional – warm, mostly dry and pleasant.
How does the Indian Ocean influence Perth’s weather?
The Indian Ocean supplies moisture for winter rain and moderates coastal temperatures. In summer, offshore winds keep the city dry, but a tropical cyclone in the north-west can occasionally feed cloud and rain southwards, bringing a brief drop in temperature. Sea surface temperatures also affect the timing of the afternoon sea breeze – cooler water delays it, warmer water brings it earlier. For longer-term planning, checking a weather perth 14 days forecast helps decide when to expect those breezy changeovers.
When is the best time to visit Perth for good weather?
March–April and October–November offer warm, sunny days without extreme heat. These shoulder months also have fewer rain days than winter and lower humidity than summer. A 28 day weather forecast perth can help pinpoint a clear window.
Does Perth ever experience cyclones?
Direct cyclone hits are very rare – Perth is too far south. However, ex-tropical cyclones moving down the west coast can bring heavy rain, damaging winds and large swell. The Bureau of Meteorology issues warnings; check our Severe Weather Warning page for updates.
How accurate are 14-day and 28-day forecasts for Perth?
Forecasts beyond 7 days have lower skill. A perth weather 15 days outlook is useful for spotting trends (e.g. a hot spell) but not exact daily conditions. For reliable short-term planning, refer to the live forecast above and bom perth weather products.