Hamilton Island – current water temperature and swimming conditions

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

✅ Water in this range is comfortably warm and widely considered ideal for swimming. Most people can stay in the water for a long time without feeling cold. It works well for families, recreational swimming, and active water sports such as swimming, surfing, and paddleboarding.

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 Hamilton Island 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 Hamilton Island will be 25.6°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

Hamilton Island sits in the heart of the Whitsundays off Queensland’s North Coast, where the Coral Sea delivers consistently warm water through the year. In summer, from around December to March, sea temperatures usually sit between 27 and 29 °C, giving the water a distinctly tropical feel that suits long, relaxed swims. During winter, typically June to August, temperatures ease back to about 22–24 °C, which is still mild and comfortable, especially with plenty of sunshine. Spring and autumn are often ideal, with water temperatures commonly ranging from 24–26 °C and calmer conditions around the island.