Swansea – current water temperature and swimming conditions

Water Temperature in Swansea: 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 Swansea have been on a steady rise over the past month and have continued to climb over the last week.

According to our forecast, Sea water temperature in Swansea 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

Swansea sits along Tasmania’s east coast on the sheltered shores of Great Oyster Bay, with the Tasman Sea lying beyond Freycinet Peninsula. This setting gives the area relatively calm and clear water compared with more exposed coastlines. Water temperatures follow a steady seasonal pattern. In summer, from December to February, the sea usually reaches around 17–19 °C, making it one of the more comfortable swimming spots on the east coast. Autumn brings a gradual cooling to about 15–17 °C, while winter is cooler, typically around 11–13 °C. During spring, the water slowly warms again, generally sitting between 13–15 °C as days lengthen and weather becomes more settled.