Ocean Grove – current water temperature and swimming conditions

Water Temperature in Ocean Grove: 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 Ocean Grove 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 Ocean Grove will be 18.5°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

Ocean Grove sits along the southern edge of Port Phillip Bay, with its open beach exposed to the cooler waters of Bass Strait, and that shapes water temperatures through the year. In summer, the sea is at its warmest, usually ranging from about 17–20°C, which feels refreshing rather than warm but is popular with swimmers during hot spells. Autumn sees temperatures easing back to roughly 15–18°C, while winter brings the coldest conditions, often around 12–14°C. As spring rolls in, the water slowly lifts again, typically sitting between 13–16°C, though cold snaps can still occur after strong southerly winds.