Can you swim at Cottesloe Beach in August? — 18.0°C water

Yes, but expect a fresh dip
Average sea · August
18.0°C
Live water now
Recommended wetsuit
3/2mm fullsuit
mild

It depends. Cottesloe Beach sits around 18.0°C in August; confident swimmers will be fine, casual bathers may prefer short sessions.

Monthly averages set expectations, but the specific beach today depends on wind, swell and recent weather. Check the live value at the top of this page or open the Cottesloe Beach live page for full conditions.

Best months to swim
January · February · March · December

Frequently asked questions

What is the average sea temperature at Cottesloe Beach in August?

Cottesloe Beach averages 18.0°C in August, based on long-run climatology for the Indian Ocean.

Is the sea warm enough to swim at Cottesloe Beach in August?

It is swimmable but fresh; confident swimmers will be fine without a wetsuit.

Do I need a wetsuit at Cottesloe Beach in August?

A 2 mm shorty is comfortable for sessions over 30 minutes.