Grange – current water temperature and swimming conditions

Water Temperature in Grange: 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 Grange 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 Grange will be 18.1°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

Grange sits along Adelaide’s metropolitan coastline, opening onto the waters of the Great Australian Bight, and its sea temperatures follow a clear seasonal rhythm. In summer, the water is at its warmest and most comfortable, usually around 20–23°C, which suits swimming on hot days. Autumn brings a gradual cooling to roughly 18–21°C, while winter is noticeably cooler, often sitting between 14–16°C. Spring sees a steady warm-up, with water temperatures commonly around 16–19°C, influenced by sunshine, winds and calmer weather patterns.