Cape Otway – current water temperature and swimming conditions

Water Temperature in Cape Otway: 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 Cape Otway 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 Cape Otway will be 16.5°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

Cape Otway sits on a rugged, windswept section of the Victorian coastline, facing the powerful waters of the Great Australian Bight, and this location keeps sea temperatures consistently cool. In summer, the ocean is usually at its warmest, generally around 16–19°C, which still feels cold compared to more sheltered beaches but can be refreshing on hot days. Autumn sees temperatures drop to roughly 14–17°C, while winter brings very cold conditions, often around 11–13°C. Spring warms slowly, with water temperatures typically sitting between 12–15°C, and sudden changes are common after strong weather systems.