Gerringong – current water temperature and swimming conditions

Water Temperature in Gerringong: Daily Trends, Historical Records, and Forecast

✅ This water feels mild to warm and is comfortable for the majority of swimmers. Swimming is enjoyable, though longer stays may feel cooler for some people, especially in windy conditions. These temperatures are well suited to family outings and active swimming, particularly on warm days.

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 Gerringongfell over the past month, but have levelled out during the last week.

According to our forecast, Sea water temperature in Gerringong will be 20.6°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

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.