Myponga Beach – current water temperature and swimming conditions

Water Temperature in Myponga Beach: 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 Myponga Beach 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 Myponga Beach will be 17.9°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

Myponga Beach lies along the southern Fleurieu Peninsula, facing the open waters of the Great Australian Bight, and its water temperatures reflect this exposed ocean setting. In summer, the sea is at its warmest, usually around 18–21°C, which feels refreshing rather than warm, even on hot days. Autumn brings a gradual cooling to roughly 16–19°C, while winter is noticeably colder, often sitting between 13–15°C. Spring is slow to warm, with water temperatures commonly in the 14–17°C range, influenced by sunshine, wind direction and passing weather systems.