Hopetoun – current water temperature and swimming conditions

Water Temperature in Hopetoun: 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 Hopetoun have been gradually cooling over the past month, with a further drop recorded during the last week.

According to our forecast, Sea water temperature in Hopetoun will be 17.8°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

Hopetoun sits on the sheltered side of the far south coast, near the eastern edge of Fitzgerald River National Park, with calmer conditions than many parts of the Great Australian Bight. Water temperatures follow a cool southern pattern but are generally pleasant in the warmer months. Summer, from December to February, usually sees the sea sitting around 18–21°C, which feels comfortable on sunny, low-wind days. Autumn cools slowly to about 16–19°C, while winter is noticeably colder, most often in the 13–15°C range. Spring brings a gradual warm-up again, typically 15–17°C, though the water can still feel fresh early in the season.