East Coast of Tasmania – Water Temperature Overview
This page provides information on East Coast of Tasmania locations where sea water temperature data is available, including current conditions, monthly ranges and historical records.
Current Water Temperature
The current water temperature in the East Coast of Tasmania today is within the range of 16-18°C. Thus, the average water temperature is about 17°C. 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.
Sea Temperature Trends
Over the past month, the sea water temperature has remained largely unchanged. Overall, the sea water temperature is within the range expected based on historical data for this month.
Water Temperature and Swimming Conditions by Month
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 14°C | 18°C | 22°C |
| February | 15°C | 18°C | 21°C |
| March | 15°C | 19°C | 22°C |
| April | 14°C | 18°C | 21°C |
| May | 11°C | 16°C | 20°C |
| June | 11°C | 15°C | 18°C |
| July | 10°C | 13°C | 16°C |
| August | 10°C | 13°C | 16°C |
| September | 9°C | 13°C | 16°C |
| October | 9°C | 13°C | 17°C |
| November | 11°C | 15°C | 19°C |
| December | 12°C | 16°C | 20°C |
The East Coast of Tasmania, stretching from the Bay of Fires down to the Tasman Peninsula, is celebrated for its temperate maritime climate and remarkably clear, turquoise waters. Sea water temperatures in this region are crisp yet manageable, particularly during the summer months when the influence of the East Australian Current is most prevalent. In February, the ocean reaches its seasonal peak, typically ranging from 17°C to 19°C, though sheltered bays like Waubs Bay or Binalong Bay can occasionally feel slightly warmer in the shallows. By mid-winter in August, the temperature settles into a brisk range of 12°C to 14°C. While many locals and visitors brave the water in standard swimwear during the height of summer, a 3/2mm wetsuit is generally recommended for longer sessions or for anyone exploring the coast during the shoulder seasons.
Swimming Conditions
Swimming is permitted and highly encouraged at dozens of pristine locations, including the world-famous Wineglass Bay and the family-friendly beaches of Bicheno and Swansea. However, because much of the East Coast consists of unpatrolled wilderness, visitors are urged to exercise caution and swim at supervised beaches whenever possible. The Bicheno Surf Life Saving Club typically patrols Waubs Bay during the summer season, providing a safe zone marked by the red and yellow flags. Swimming is restricted in certain areas mainly due to natural hazards such as powerful rip currents, sudden drop-offs, and shifting sandbars that are common along the more exposed stretches of the Great Eastern Drive. Additionally, it is wise to avoid swimming near river mouths or following heavy rainfall to ensure optimal water quality. By choosing sheltered coves and respecting local conditions, you can safely enjoy the refreshing and exceptionally clean waters of Tasmania’s eastern fringe.