Swansea – current water temperature and swimming conditions

Water Temperature in Swansea: Daily Trends, Historical Records, and Forecast

⚠️ Water at this temperature feels cold and is generally suitable only for brief immersion. Swimming without a wetsuit can quickly become uncomfortable, and exposure time is usually short. These conditions are mainly suitable for experienced swimmers or those using proper thermal gear.

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 gradually cooling over the past month, with a further drop recorded during the last week.

According to our forecast, Sea water temperature in Swansea will be 13.3°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

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.