Mandalay Beach – current water temperature and swimming conditions

Water Temperature in Mandalay 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 Mandalay 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 Mandalay Beach will be 18.5°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

Mandalay Beach sits just south-east of Denmark at the mouth of the Wilson Inlet, where freshwater influence and the open edge of the Great Australian Bight shape local conditions. Water temperatures here are cool but slightly moderated compared with fully exposed ocean beaches. In summer, from December to February, the sea usually ranges between 18–21°C, often feeling comfortable on sunny, low-wind days. Autumn sees a gradual drop to around 16–19°C, while winter is colder and brisk, typically sitting at 13–15°C. Spring brings a slow warm-up again to about 15–17°C, though early-season swims can still feel sharp.