Monkey Mia – current water temperature and swimming conditions

Water Temperature in Monkey Mia: 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 Monkey Mia 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 Monkey Mia will be 20.8°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

Monkey Mia sits within the sheltered waters of Shark Bay on Western Australia’s north-west coast, and that protection has a big impact on water temperature and swimming comfort. The sea here is warm for most of the year. In summer, from December to February, water temperatures usually sit around 26–29°C, often feeling pleasantly warm rather than refreshing. Autumn remains very comfortable at roughly 24–27°C. Winter brings only a mild drop, generally around 20–22°C, while spring warms steadily again to about 22–25°C as air temperatures rise and conditions settle.