Find information on temperature, rainfall and seasonal activities to help plan your holiday in Perth.

What is the weather like in Perth?

Perth enjoys hot, dry summers and mild winters. During summer rain is unusual, but winter can bring downpours of rain and thunderstorms. Plan ahead with our information on temperature and rainfall.

Summer (December – February)
Summer in Perth is hot and dry with very little rainfall. Average temperatures range from 17.5 - 30°C (63.5 - 86°F). In the afternoons a sea breeze called the ‘Fremantle Doctor' provides some relief from the heat.

Autumn (March – May)
During autumn Perth experiences warm, sunny days and cooler nights with average temperatures between 13.7 - 26°C (56.6 - 78.8°F). During autumn there can be occasional showers and some humidity. Evening temperatures rarely drop below 10°C (50°F).

Winter (June – August)
Winters are relatively cool and wet with temperatures ranging from 8 - 19°C (46.4 - 66.2°F). There are occasional storms, characterised by downpours of rain and thunderstorms.

Spring (September – November)
During spring, days are warm and sunny with average temperatures ranging from 11.7 - 23°C (53 - 73.4°F). There is little rainfall at this time of year. There is a lot of flora in spring: discover more than 12,000 species of wildflowers, which blossom in Perth’s nature reserves and national parks.

Frequently Asked Questions about the weather in Perth

Does Perth observe daylight savings time?
No. Daylight savings is not observed in Western Australia. The time zone in Western Australia is Australian Western Standard Time (AWST), UTC +8.

What time is sunrise and sunset in Perth? 
December experiences the longest hours of daylight in Perth with sunrise at approximately 5am and sunset at 7:30pm. June has the least hours of daylight with sunrise at approximately 7:15am and sunset at 5:20pm. Perth is one of the few places in Australia where you can watch the sun set over the Indian Ocean.

What is the sea temperature in Perth?
In summer the average sea temperature ranges from 20.9 - 22.8°C (70 - 73°F). Temperatures reach their peak in March with an average of 23.4°C (74°F), and dip in winter to 19.4 – 21.3°C (67 - 70°F).

Does it snow during winter in Perth?
Perth has never recorded snow on the ground.  

What is the Ultraviolet (UV) Index Forecast?
Visitors to Perth should look out for the UV index in local weather reports, which describes the daily solar UV radiation intensity. Protect yourself from sunburn by using SPF30+ sunscreen, which is readily available throughout Australia at supermarkets, convenience stores and pharmacies, and wearing sun-smart clothing, including a hat and sunglasses.