Congwong Beach – current water temperature and swimming conditions

Water Temperature in Congwong Beach: Daily Trends, Historical Records, and Forecast

⚠️ This is cool water that may feel brisk on entry. Swimming is usually limited to short sessions, and prolonged stays can become uncomfortable without thermal protection. Many swimmers choose a wetsuit, especially for surfing or open-water swimming.

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 Congwong Beach 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 Congwong Beach will be 19.3°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

Congwong Beach is a small, sheltered stretch of sand tucked inside Botany Bay National Park, with a more protected feel despite its connection to the Tasman Sea. Water temperatures here follow the wider Sydney coastal pattern. In summer, from December to March, the water usually sits around 21–24 °C, making it comfortable for casual swimming and longer dips. Autumn brings a gradual cool-down to about 19–21 °C. Winter is the coolest period, with temperatures typically around 16–18 °C, while spring sees a steady rise back into the 18–20 °C range as ocean temperatures recover.