Perth Weather in August

In Perth, August brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 9°C (48°F). Expect quite a bit of rainfall this month.

Rainfall in Perth in August

Climate statistics over the past 30 years suggest around 13 days of rain, with 89 mm (3.5 in) average for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Perth in August

Expect highs of 19°C (66°F) in Perth in August, with nights dropping to around 9°C (48°F). Experience the winter season in August. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Perth in August

There are approximately 222 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Perth in August

Average wind conditions reach 6 m/s (12 knots) in August. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in August

With water at 17°C (63°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

For Perth itself, April, May, September, October and November generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Australia, check out our Perth's climate page.

Perth Temperature in August

Min Temperature 9°C (48°F)  

Max Temperature 19°C (66°F)  

Water Temperature 17°C (63°F)  

Chance of Rain 44%  

Precipitation 89 mm (3.5 in)  

Rainy days 13 days  

Humidity 54%  

Windspeed 6 m/s (12 knots)  

Sunshine 222 hours  

Percentage Sunshine  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Perth typically stay consistent throughout August, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 9°C (48°F).

Average temperatures in August

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

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Historical weather for Perth in August

Browse day-by-day weather records for Perth spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Perth historical weather extremes in August

Based on weather observations in Perth between 1976 and 2025, these are the recorded extremes during August.

• The warmest day in August was on August 31, 2023, with a maximum of 30°C (86°F).
• The lowest daytime temperature in August was 11°C (52°F), recorded on August 25, 2025.
• Nighttime temperatures dropped to 0°C (32°F) on August 15, 2004, marking the coldest August night on record.

What to Wear in Perth in August

For Perth in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 17°C (63°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Perth in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Perth's climate page.

More climate data for Perth

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Perth climate overview or explore weather in Australia.