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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Focus 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 has a Mediterranean climate with hot, dry summers and mild, wet winters. The live forecast above shows today’s conditions; below we outline typical seasonal patterns and key factors that shape the city’s weather.
What is Perth’s typical weather pattern?
Perth’s year divides into a long, hot summer (December–February) and a mild, rainy winter (June–August). Autumn and spring are short transitions with mild days and cool nights.
- Summer average maximum: around 31°C, often exceeding 40°C during heatwaves.
- Winter average maximum: about 18°C, with most rainfall between May and September.
- Annual rainfall: roughly 800 millimetres, with over 70% falling in the cooler half of the year.
- Sea breeze (“Fremantle Doctor”) frequently moderates summer afternoons.
How does the Indian Ocean influence Perth weather?
The Indian Ocean provides a moderating effect on coastal areas, but also drives the weather systems that bring winter rain and occasional tropical moisture.
- South-westerly winds carry moist air from the ocean, producing cloudy, rainy days in winter.
- Summer sea breezes keep coastal suburbs several degrees cooler than inland areas.
- Cyclones from the north-west can deliver heavy rainfall and damaging winds, though direct hits are rare. For current risks, check the severe weather warning page.
When is the best time to visit Perth for fine weather?
November to March offers warm, sunny days with very little rain, though January and February can be extremely hot. Spring (September–October) and autumn (March–April) provide milder conditions and fewer crowds.
Does Perth ever get cyclones?
Tropical cyclones occasionally track far enough south to affect Perth, usually as decaying systems bringing heavy rain and strong winds. The risk peaks from January to March. For official warnings, refer to BOM.
Where can I find a 14-day or monthly forecast for Perth?
Extended outlooks such as weather perth 14 days or 28 day weather forecast perth are available from sources like Weatherzone and Elders. For the most reliable day-to-day updates, rely on the Bureau of Meteorology (bom perth weather).
For more Australian climate guides, visit our Australia weather hub or see conditions in Adelaide, which shares a similar Mediterranean pattern.