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When is the best time to visit Perth and Western Australia?

Q: When is the best time to visit Perth and Western Australia?

September to November is the best time in Perth, with mild days, little rain and the wildflower season. North to Ningaloo is best April to October. Perth summers are hot and very dry, about 10mm of rain a month.

September to November, and it is the wildflowers that decide it. Spring brings mild days around 20 to 26°C, the rain gone, and the biggest wildflower bloom on earth. North to Ningaloo is April to October; summer in Perth itself is hot and bone dry at 10mm a month.

Checked on 6 October 2026.

Perth has a Mediterranean climate — dry summers and wet winters — which is the opposite of the tropics up north. That means the best time to be in Perth and the best time to go north are not quite the same, and spring is where they overlap.

Perth month by month

Month	Average top	Average overnight	Rain	What it gives you
January	31.9°C	17.1°C	10.2 mm	Hot, dry and bright. Beach weather, and the evenings cool off.
February	32.1°C	17.6°C	14.4 mm	The warmest month. Long days and almost no rain.
March	29.8°C	16.0°C	16.5 mm	Excellent — the heat easing and still dry.
April	25.7°C	13.0°C	39.0 mm	Very good. Mild, and the window to head north opens.
May	21.9°C	10.4°C	95.9 mm	Cooling and the rain arriving. Good for going north.
June	19.1°C	9.0°C	153.8 mm	Wettest stretch in Perth — but the north is perfect.
July	18.0°C	8.1°C	154.0 mm	Cool and wet in the city, dry and warm up the coast.
August	18.7°C	8.1°C	119.1 mm	The first wildflowers appear in the north.
September	20.4°C	8.9°C	72.4 mm	The pick of the year. Wildflowers everywhere, rain easing.
October	22.9°C	10.4°C	42.9 mm	Excellent — warm, dry, and the bloom at its peak near Perth.
November	26.2°C	12.9°C	25.5 mm	Warm and dry, ahead of the summer heat.
December	29.3°C	15.1°C	10.7 mm	Hot and dry, with the longest days.

Bureau of Meteorology averages for Perth Airport, over 82 years.

The wildflowers

Western Australia has the largest wildflower bloom in the worldaround 12,000 species, most found nowhere else.
It moves south through the yearstarting in the north around June and reaching the south-west by October or November.
August to October is the broad windowand September is the safest single month if you only have one.
The Pinnacles and Kalbarri tripsrun straight through the best of it.

Going north to Ningaloo

April to Octoberis the window — the tropical north is dry then and the heat is bearable.
Whale sharks at Ningaloo are seasonalroughly March to July, and booked separately on the day.
Humpbacks pass throughlater in the year, around August to October.
Summer up there is extremewhich is why the trips cluster in the cooler half of the year.

So when would we book?

Septemberif you can choose freely — wildflowers, mild days and the north already open.
October or Novemberfor warm, dry weather and the bloom in the south-west.
March or Aprilfor the other shoulder, with summer heat gone and the north opening up.
June to Augustonly if Perth itself is incidental — it is the wettest time in the city and the best time up the coast.