Bundeena – current water temperature and swimming conditions

Water Temperature in Bundeena: 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

While water temperatures in Bundeena declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Bundeena will be 20.8°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

Bundeena sits on the southern edge of Sydney’s coastline near the entrance to Port Hacking, with nearby beaches exposed to the Tasman Sea but also influenced by more sheltered waters. Water temperatures here follow the familiar seasonal cycle of the Sydney South Coast. In summer, from December through March, the sea usually ranges between 21–24 °C, making conditions comfortable for most swimmers. Autumn brings a gentle cool-down to around 19–21 °C. Winter is the coldest period, with water temperatures typically sitting between 16–18 °C, while spring sees a gradual warm-up into the 18–20 °C range as the season changes.