Connellys Marsh – current water temperature and swimming conditions

Water Temperature in Connellys Marsh: 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 Connellys Marsh 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 Connellys Marsh will be 17.0°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

Connellys Marsh sits along Tasmania’s south-east coast, opening onto the Tasman Sea with a mix of open shoreline and nearby sheltered water. Sea temperatures here follow the typical east coast pattern and remain cool year-round. In summer, from December to February, the water usually reaches around 16–18 °C, which feels refreshing but swimmable on warm, calm days. Autumn brings a gradual cooling to about 14–16 °C, while winter is noticeably colder, commonly around 11–13 °C. During spring, temperatures slowly rise again, generally sitting between 13–15 °C as daylight increases and weather becomes more settled.