Hervey Bay – current water temperature and swimming conditions

Water Temperature in Hervey Bay: 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

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

According to our forecast, Sea water temperature in Hervey Bay will be 20.2°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

Hervey Bay sits along Queensland’s Central Coast, sheltered by K’gari and fronting the Coral Sea, which helps keep water temperatures comfortable for most of the year. In summer, from around December to March, sea temperatures are typically about 24–26 °C, making the water pleasant without feeling overly warm. During winter, usually June to August, temperatures cool to roughly 18–20 °C, which can feel fresh but is still suitable for swimming on sunny, low-wind days. Spring and autumn are often the most popular times, with water temperatures commonly sitting between 21–23 °C and generally stable weather.