Prevelly – current water temperature and swimming conditions

Water Temperature in Prevelly: Daily Trends, Historical Records, and Forecast

⚠️ Water in this range feels cool but still manageable for many swimmers. Short to moderate swims are comfortable, especially in warm weather. Some people may prefer a wetsuit for longer stays, particularly when swimming actively or outside peak summer conditions.

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

While water temperatures in Prevelly declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Prevelly 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

Prevelly sits at the mouth of the Margaret River, where the river meets the Indian Ocean and shapes a mix of open beach and sheltered corners. Water temperatures here are cool but quite consistent year-round. In summer, from December to February, the sea usually ranges between 19–22°C, which feels comfortable on warm, sunny days. Autumn brings a gradual cooling to around 17–20°C. Winter is colder and more bracing, most often sitting at 14–16°C, while spring sees a steady warm-up again to roughly 16–18°C, though early-season swims can still feel crisp.