Moana Beach – current water temperature and swimming conditions

Water Temperature in Moana Beach: Daily Trends, Historical Records, and Forecast

⚠️ Water at this temperature feels cold and is generally suitable only for brief immersion. Swimming without a wetsuit can quickly become uncomfortable, and exposure time is usually short. These conditions are mainly suitable for experienced swimmers or those using proper thermal gear.

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 Moana Beach declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Moana Beach will be 13.6°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

Moana Beach sits along Adelaide’s southern coastline, opening out to the Great Australian Bight, and its water temperatures follow a cool but fairly gentle seasonal pattern. In summer, the sea is at its most inviting, usually around 19–22°C, which suits swimming on hot days without feeling overly warm. Autumn brings a gradual cooling to roughly 17–20°C, while winter is noticeably cooler, often around 13–15°C. Spring sees a steady warm-up, with water temperatures commonly sitting between 15–18°C, influenced by sunshine, light winds and calmer weather windows.