Connellys Marsh – current water temperature and swimming conditions

Water Temperature in Connellys Marsh: Daily Trends, Historical Records, and Forecast

❌ This is very cold water, causing an immediate cold shock response for most people. Swimming is not recommended without a wetsuit, and even with protection, time in the water should be limited. These temperatures are typically suited only to trained or well-prepared swimmers.

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

According to our forecast, Sea water temperature in Connellys Marsh will be 12.3°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.