Somerset – current water temperature and swimming conditions

Water Temperature in Somerset: 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 Somerset 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 Somerset will be 16.6°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

Somerset lies on Tasmania’s north-west coast along the Bass Strait, where the sea keeps things cool and clear throughout the year. Water temperatures here follow a steady seasonal pattern. In summer, from December to February, the sea usually reaches around 15–17 °C, which feels brisk but refreshing on warm days. Autumn brings a gradual drop to roughly 13–15 °C, while winter is the coldest period, with temperatures commonly around 11–12 °C. During spring, the water slowly warms again, typically sitting between 12–14 °C as conditions begin to improve and daylight increases.