Cape Arid – current water temperature and swimming conditions

Water Temperature in Cape Arid: Daily Trends, Historical Records, and Forecast

✅ This water feels mild to warm and is comfortable for the majority of swimmers. Swimming is enjoyable, though longer stays may feel cooler for some people, especially in windy conditions. These temperatures are well suited to family outings and active swimming, particularly on warm days.

It’s important to note that these swimming tips and recommendations apply only in settled weather. When air temperatures drop below 20°C — and sometimes even below 25°C — swimming can feel uncomfortable, even when water temperatures are relatively high.

Water Temperature Over the Last 30 Days

Over the past 30 days, water temperatures in Cape Arid have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, Sea water temperature in Cape Arid will be 21.6°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Cape Arid lies along the remote south-eastern coast of Western Australia, where the Great Australian Bight meets long, windswept beaches and clear southern waters. Sea temperatures here stay cool for most of the year. In summer, typically from December to February, the water is usually around 18–21°C, which can feel surprisingly pleasant on calm days. Autumn cools gently to about 16–18°C, while winter is noticeably colder, often sitting between 13–15°C. Spring sees a gradual rise again, generally around 15–17°C, though chilly southerly winds can make the water feel cooler than the thermometer suggests.