Windy Harbour – current water temperature and swimming conditions

Water Temperature in Windy Harbour: Daily Trends, Historical Records, and Forecast

⚠️ This is cool water that may feel brisk on entry. Swimming is usually limited to short sessions, and prolonged stays can become uncomfortable without thermal protection. Many swimmers choose a wetsuit, especially for surfing or open-water swimming.

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 Windy Harbour have remained fairly stable over the past 30 days, though a cooler trend has emerged in the last week.

According to our forecast, Sea water temperature in Windy Harbour will be 18.4°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

Windy Harbour sits on a remote stretch of the far south-west coast, where the Indian Ocean meets rugged headlands and long sandy beaches. Despite the name, conditions can be surprisingly calm on the right day. Water temperatures here are cool but a touch milder than along the Great Australian Bight. In summer, from December to February, the sea usually ranges between 19–22°C, making it quite comfortable for swimming during settled weather. Autumn brings a gradual cooling to around 17–20°C. Winter is colder and more bracing, typically 14–16°C, while spring sees a slow rise again to about 16–18°C, though wind can still add a chill.