Port Noarlunga – current water temperature and swimming conditions

Water Temperature in Port Noarlunga: 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 Port Noarlunga 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 Port Noarlunga will be 20.1°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

Port Noarlunga sits along Adelaide’s southern coastline, opening onto the Great Australian Bight, and its water temperatures follow a gentle seasonal cycle shaped by the southern ocean. In summer, the sea is at its warmest and most inviting, usually around 19–22°C, which feels comfortable for swimming on hot days. Autumn brings a gradual cooling to roughly 17–20°C, while winter is noticeably cooler, often sitting between 13–15°C. Spring sees a steady warm-up, with water temperatures commonly around 15–18°C, influenced by sunshine, wind direction and calmer weather windows.