Rhyll – current water temperature and swimming conditions

Water Temperature in Rhyll: 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

Water temperatures in Rhyll 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 Rhyll will be 18.8°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

Rhyll sits on the sheltered northern side of Phillip Island, with its waters influenced by the Bass Strait but moderated by the surrounding bays and inlets. Water temperatures here are cooler than northern New South Wales but fairly steady through the year. In summer, the water usually reaches around 18–22 °C, which feels refreshing yet comfortable for swimming on warm days. Autumn often stays mild, with temperatures commonly between 16–20 °C, while spring is cooler at roughly 14–18 °C as the water gradually warms after winter. During winter, water temperatures typically drop to about 11–14 °C, which is quite cold and usually limits swimming to short dips or those wearing wetsuits.