Perth

Western Australia Weather & Climate: Australia

Climate by month across Western Australia, Australia, average temperatures, rainfall and the best time to visit.

Climate overview of Western Australia

When planning a visit to Western Australia in Australia, it helps to know that temperatures typically range from 18°C (64°F) in July up to 32°C (90°F) during the peak of January. Our detailed climate overview is based on data from Perth, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

The weather in Western Australia during April, May, June, September, October and November is comfortably warm, with average temperatures ranging from 19°C (66°F) to 27°C (81°F).

January and February are generally the hottest months of the year.

When it comes to rainfall, Western Australia sees significant variations throughout the year. July tends to be the wettest, receiving 99 mm (3.9 in) of rain, while December is much drier with just 12 mm (0.5 in). For those seeking drier weather, January, February and December typically see minimal rainfall, never exceeding 19 mm (0.7 in).

January is the sunniest period, with ideal conditions for exploring the region and all it has to offer.

Western Australia has a number of different climate zones. A big part has a hot desert climate with only 200 mm (7.9 in) rainfall per year . The coastal areas are less warm. The areas in the southwest have a Mediterranean climate with mild winters and warm summers. The north experiences a tropical climate with hot humid summers and warm dry winters.

Summer is from October to April with a maximum temperature of 29°C (84°F) and a minimum of 17°C (63°F). The average water temperature is 20°C (68°F). Winter runs from May to September. The temperature is then up to 18°C (64°F) with a minimum of 8°C (46°F). The water is about 17°C (63°F).

Explore Western Australia by month

Pick a month to see the average temperature, rainfall and sunshine in Western Australia — and find the best time to visit. (based on Perth)

Popular cities by month

Compare cities per month. Toggle cities on/off.

Perth Fremantle Margaret River Albany Broome Denmark
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of Western Australia

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Perth 18°C (64°F) 32°C (90°F) 9°C (48°F) 19°C (66°F) 565 mm (22 in) 3,224 hours
Fremantle 19°C (66°F) 30°C (86°F) 11°C (52°F) 20°C (68°F) 608 mm (24 in) 3,224 hours
Margaret River 17°C (63°F) 25°C (77°F) 12°C (54°F) 17°C (63°F) 785 mm (31 in)
Albany 16°C (61°F) 25°C (77°F) 9°C (48°F) 15°C (59°F) 528 mm (21 in) 2,001 hours
Broome 29°C (84°F) 35°C (95°F) 18°C (64°F) 27°C (81°F) 607 mm (24 in) 3,508 hours
Denmark 16°C (61°F) 25°C (77°F) 9°C (48°F) 16°C (61°F) 572 mm (23 in) 2,001 hours

Places in Western Australia, Australia

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.