Seacliff – current water temperature and swimming conditions

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

⚠️ Water in this range feels cool but still manageable for many swimmers. Short to moderate swims are comfortable, especially in warm weather. Some people may prefer a wetsuit for longer stays, particularly when swimming actively or outside peak summer conditions.

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 Seacliff 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 Seacliff will be 17.4°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

Seacliff is a relaxed coastal suburb just south of central Adelaide, looking out over the calmer stretch of the Great Australian Bight. Water temperatures here are typical for South Australia’s metropolitan beaches. In summer, the sea usually sits between 18–21°C, making it comfortable for regular swimming on warm days. Autumn sees a slow cool-down to around 17–19°C, while winter is noticeably colder, most often 13–15°C. Spring brings a gradual lift again, generally ranging from 15–17°C, and the water can feel quite refreshing as air temperatures start to rise.