Weather in Perth: What to Expect Year-Round

Whether you're planning a trip to Perth or scheduling your weekends ahead, understanding the city's weather patterns can help you make the most of your visit. Perth enjoys a Mediterranean climate with hot, dry summers and mild, wet winters. Perth is recognised for being the sunniest capital city in Australia, frequently sporting blue skies even through winter, making it a year-round pleasure to visit. This guide will provide an overview of Perth's weather, seasonal highlights, and answer some frequently asked questions about the city's climate.

Perth Weather by Season

Summer (December to February)

Summer in Perth is characterised by long, hot, and dry days. Temperatures frequently exceed 30°C, with January typically being the hottest month. The city enjoys clear blue skies, making it perfect for beach outings and outdoor activities.

Summer tips for Perth activities: Perth has some of the most beautiful beaches in the world, so take advantage of it while staying cool. Just don't forget to slip, slop, slap and stay hydrated!

Cottesloe Beach (an accessible beach in Perth)

Autumn (March to May)

Tapering off Perth's long summers, the beginning of autumn stays relatively warm but gradually tips into cooler temperatures typically ranging from 14°C to 26°C. With mild weather and increased rainfall, this season is ideal for exploring Perth’s parks and gardens. As the summer heat fades but there is still plenty of sunlight, it’s also a great time for outdoor festivals and events.

Autumn tips for Perth activities: Explore Kings Park and Botanic Garden and Araluen Botanic Park to see the changing foliage. If the rain hasn't arrived yet, pack a picnic!

Girls walks across a bridge at Araluen Botanic Park in Armadale

Winter (June to August)

Winters in Perth are mild and wet. You can normally expect the coldest month to be July, with average temperatures ranging from 8°C to 19°C. Rain is more frequent, making it a good time to visit Perth’s museums, cafe culture and indoor attractions. The winter rainfall rejuvenates the region's lush greenery, providing a nice backdrop for outdoor activities on drier days.

Winter tips for Perth activities: Head to Perth's Cultural Precinct! There is so much to explore at the Art Gallery of Western Australia and the WA Museum Boola Bardip. Or for something adventurous, go hot air ballooning!

WA Museum Boola Bardip | Perth

Spring (September to November)

Spring is a delightful time in Perth, with average temperatures between 12°C and 23°C. The warmth and recent rainfall bring to life an abundance of Australian flora across the region, and the sunny dry weather is perfect for hiking and outdoor adventures.

Spring tips for Perth activities: Don’t miss the wildflower season. Head to the Perth Hills for the stunning wildflower trails or take a day trip to the Avon Valley to see the blooms – especially good for viewing a number of native orchid species.

Two girls amongst wildflowers near Toodyay in the Avon Valley

Fun Facts

What is the hottest it’s ever been in Perth?

The highest recorded temperature in Perth was 46.2°C on February 23, 1991. The dry summer heat can be harsh, especially if you're visiting and not used to the temperament. It’s important to stay hydrated and protected from the intense sun.

How many 40 degree days in Perth?

On average, Perth experiences about 3-4 days each summer where temperatures exceed 40°C (104°F). These extreme heat days usually occur in January or February.

When is the water warmest to swim?

Perth enjoys a long swimming season lasting from November to May. If you're looking for the warmest waters, on average the warmest water temperature is in March with an average of around 23°C.

Has it ever snowed in Perth?

To date, Perth has never recorded snow on the ground.