Garie Beach – current water temperature and swimming conditions

Water Temperature in Garie 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 Garie Beachfell over the past month, but have levelled out during the last week.

According to our forecast, Sea water temperature in Garie Beach will be 17.9°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

Garie Beach sits on the Illawarra coastline inside Royal National Park, fully exposed to the Tasman Sea and surrounded by steep bushland. Water temperatures here reflect true open-ocean conditions and follow a clear seasonal cycle. In summer, from December to March, the sea is usually at its warmest, ranging between 21–24 °C, which many swimmers find comfortable without extra insulation. Autumn brings a steady cool-down to around 19–21 °C. Winter is noticeably colder, with water temperatures typically between 16–18 °C, while spring marks a gradual warm-up back into the 18–20 °C range as ocean currents and air temperatures shift.