Mackay Harbour – current water temperature and swimming conditions

Water Temperature in Mackay Harbour: 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

Water temperatures in Mackay Harbour 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 Mackay Harbour will be 28.3°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

Mackay Harbour sits on Queensland’s North Coast, opening onto the Coral Sea, where water temperatures remain warm through most of the year. In summer, from around December to March, the sea typically sits between 27 and 29 °C, making the water feel very comfortable despite the heat and humidity on land. During winter, usually June to August, temperatures drop only slightly to about 22–24 °C, which is still mild enough for swimming on sunny days. Spring and autumn often provide the most pleasant conditions overall, with water temperatures commonly ranging from 24–26 °C and lighter coastal winds.