Rottnest Island Weather in August

In Rottnest Island, August brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 14°C (57°F). Expect quite a bit of rainfall this month.

Rainfall in Rottnest Island in August

Past climate data indicates that roughly 13 days will see rain, totalling around 120 mm (4.7 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Rottnest Island in August

In August, Rottnest Island sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 14°C (57°F). Conditions are often most pleasant around the middle of the day. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest. Enjoy a month of comfortably warm temperatures, despite being cooler than other months.

Sunshine in Rottnest Island in August

Expect a lot of sunshine this month, with about 222 hours of sun. These sunny conditions add to the overall experience.

August in Rottnest Island has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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• January
• February
• March
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• May
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For a detailed overview over the year and the best time to visit Australia, check out our Rottnest Island's climate page.

Rottnest Island Temperature in August

Min Temperature 14°C (57°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 43%  

Precipitation 120 mm (4.7 in)  

Rainy days 13 days  

Humidity 54% *  

Sunshine 222 hours *  

Percentage Sunshine *  

* Data from: Perth, Australia (41 KM, 26 Miles).

What to Wear in Rottnest Island in August

Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Rottnest Island in August

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

Cycling

9/10

Walking

9/10

Camping

6/10

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 Rottnest Island's climate page.

More climate data for Rottnest Island

Temperature Rainfall Sunshine Humidity

See the full Rottnest Island climate overview or explore weather in Australia.