Cottesloe Beach, Perth, WA © Tourism Australia

Weather in Perth

Frequently Asked Questions about the weather in Perth

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

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.

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).

Perth has never recorded snow on the ground.  

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.

Seasonal weather in Perth

SUMMER

Dec Jan Feb
Maximum temp
ºC | ºF
28.9 84 31.6 89 31.9 89
Minimum temp
ºC | ºF
14.8 59 16.9 62 17.5 64
Average hours of sunshine daily
Avg rainfall mm
10 9 15
Avg rainy days
2 2 1

AUTUMN

Mar Apr May
Maximum temp
ºC | ºF
28.1 83 25.5 78 21.7 71
Minimum temp
ºC | ºF
19.5 67 12.9 55 10.4 51
Average hours of sunshine daily
Avg rainfall mm
20 41 100
Avg rainy days
2 4 9

WINTER

Jun Jul Aug
Maximum temp
ºC | ºF
18.9 66 17.9 64 18.4 65
Minimum temp
ºC | ºF
9 48 8 46 8 46
Average hours of sunshine daily
Avg rainfall mm
162 159 117
Avg rainy days
12 14 13

SPRING

Sep Oct Nov
Maximum temp
ºC | ºF
20.1 68 22.6 73 25.8 78
Minimum temp
ºC | ºF
8.9 48 10.2 50 12.7 55
Average hours of sunshine daily
Avg rainfall mm
71 45 26
Avg rainy days
8 5 4