Tiwi Island – current water temperature and swimming conditions

Water Temperature in Tiwi Island: Daily Trends, Historical Records, and Forecast

✅ This is warm water that suits almost everyone. Swimming feels easy and pleasant, even for extended stays, and there is little risk of discomfort from cooling. These temperatures are ideal for family swimming, snorkelling, and most water activities, offering a good balance between comfort and refreshment.

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

Over the past 30 days, water temperatures in Tiwi Island have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, Sea water temperature in Tiwi Island will be 25.9°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

Tiwi Islands lie north of Darwin in the Timor Sea, and the surrounding water is fully tropical, with consistently warm temperatures throughout the year. During the build-up and wet season, roughly from November to April, sea temperatures usually range between 28–31°C, often feeling very warm and humid. In the dry season, from May to October, the water cools only slightly, generally sitting around 25–27°C. There is very little seasonal contrast, and even at their coolest the waters around the Tiwi Islands are warmer than summer seas in southern Australia.