Seven Mile Beach – current water temperature and swimming conditions

Water Temperature in Seven Mile Beach: 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

Over the past 30 days, water temperatures in Seven Mile Beach have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, Sea water temperature in Seven Mile Beach will be 17.1°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

Seven Mile Beach stretches along Tasmania’s south-east coast, facing the Tasman Sea and offering a long sweep of sand with clear, cool water. Sea temperatures here follow a steady seasonal rhythm. In summer, from December to February, the water usually sits around 16–19 °C, which feels refreshing but manageable on warm days. Autumn brings a gradual cooling to roughly 14–17 °C, while winter is much colder, commonly around 11–13 °C. During spring, temperatures slowly rise again, generally reaching about 13–15 °C as daylight increases and conditions begin to settle.