Remarkable Cave – current water temperature and swimming conditions

Water Temperature in Remarkable Cave: 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

While water temperatures in Remarkable Cave declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Remarkable Cave 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

Remarkable Cave sits on the exposed edge of the Tasman Peninsula, facing the open Tasman Sea, where the water is clear, powerful, and consistently cool. Sea temperatures here follow the typical east coast Tasmanian pattern but can feel colder due to constant swell and wind. In summer, from December to February, the water usually reaches around 15–17 °C, which is refreshing rather than warm. Autumn sees a gradual cooling to about 14–16 °C, while winter is much colder, commonly around 11–13 °C. During spring, temperatures slowly rise again, generally sitting between 13–15 °C as daylight increases, though conditions often remain unsettled.