Gerringong – current water temperature and swimming conditions

Water Temperature in Gerringong: 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 Gerringong 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 Gerringong will be 19.0°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

Gerringong sits on the Illawarra coast overlooking the Tasman Sea, and local water temperatures follow the typical pattern for this stretch of New South Wales. In summer, the ocean usually warms to around 21–24 °C, creating comfortable conditions for swimming and spending time in the water. Autumn often stays pleasantly mild, with temperatures commonly between 19–22 °C, while spring is cooler at roughly 17–20 °C as the sea slowly warms. Winter is the coldest period, when water temperatures generally fall to about 16–18 °C, which can feel brisk but remains swimmable for short sessions or with a wetsuit.