Cape Naturaliste – current water temperature and swimming conditions

Water Temperature in Cape Naturaliste: 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

Water temperatures in Cape Naturalistefell over the past month, but have levelled out during the last week.

According to our forecast, Sea water temperature in Cape Naturaliste will be 22.2°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 Naturaliste marks the northern tip of the Margaret River coastline, where rugged limestone headlands meet the Indian Ocean and conditions shift noticeably with wind and swell. Water temperatures here are cool but typical for the south-west of Western Australia. In summer, from December to February, the sea usually ranges between 19–22°C, which feels comfortable on sunny, settled days. Autumn sees a gradual cooling to around 17–20°C. Winter is colder and more bracing, most often sitting at 14–16°C, while spring brings a steady warm-up again to roughly 16–18°C, though fresh sea breezes can make the water feel cooler.