Roaring Bay Beach – current water temperature and swimming conditions
This page shows the current water temperature at Roaring Bay Beach in Tasmania. You can view recent sea temperature trends on a 30-day chart, check typical monthly water temperature ranges, and compare today’s reading with historical averages for this date. The page also includes a 7-day water temperature forecast, nearby beaches with similar conditions, local weather information, and a summary of swimming conditions to help you assess how suitable the water is for swimming.
Current Sea Water Temperature
The average sea water temperature today in Roaring Bay Beach is about 17°C.
Water Temperature in Roaring Bay Beach: 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 Roaring Bay Beach 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 Roaring Bay Beach will be 16.9°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Mar 12 | 17.2°C | 16.8°C | |
| Mar 13 | 17.1°C | 17.0°C | |
| Mar 14 | 16.8°C | 17.0°C | |
| Mar 15 | 16.9°C | 16.8°C | |
| Mar 16 | 16.5°C | 17.0°C | |
| Mar 17 | 16.5°C | 17.0°C | |
| Mar 18 | 16.5°C | 17.0°C | |
| Mar 19 | 16.5°C | 17.3°C | |
| Mar 20 | 16.6°C | 17.3°C | 16.6°C |
| Mar 21 | 17.7°C | 16.6°C | |
| Mar 22 | 17.0°C | 16.7°C | |
| Mar 23 | 17.3°C | 16.7°C | |
| Mar 24 | 17.0°C | 16.8°C | |
| Mar 25 | 16.7°C | 16.8°C | |
| Mar 26 | 17.0°C | 16.8°C | |
| Mar 27 | 17.0°C | 16.9°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual near-shore water temperatures in Roaring Bay Beach can vary by several degrees from the values shown, particularly after heavy rain, strong southerlies, or prolonged windy conditions. Certain wind patterns can trigger upwelling, where cooler, deeper water is pushed to the surface and replaces the warmer top layer, leading to noticeable short-term changes in water temperature.
Our water temperature forecast is produced using a proprietary mathematical model that combines real-time measurements with long-term historical patterns, local weather conditions, wind strength and direction, and air temperature specific to each coastal region. To improve accuracy, we cross-check data from nearby locations and use multiple sources, including offshore buoys, satellite-based sea surface maps, and observations provided by local authorities.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Roaring Bay Beach sits on Tasmania’s south-east coast, opening onto the Tasman Sea where the water is clear, cool, and strongly influenced by seasonal weather patterns. Sea temperatures here are fairly typical for the east coast of the state. In summer, from December to February, the water usually reaches around 16–18 °C, which feels refreshing and is swimmable on warm, settled days. Autumn sees temperatures ease back to roughly 14–16 °C, while winter is much colder, commonly around 11–13 °C. In spring, the sea slowly warms again, generally sitting between 13–15 °C as daylight increases and conditions improve.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 14°C | 17°C | 19°C |
| February | 15°C | 18°C | 20°C |
| March | 15°C | 17°C | 19°C |
| April | 14°C | 16°C | 18°C |
| May | 11°C | 14°C | 17°C |
| June | 11°C | 14°C | 15°C |
| July | 10°C | 13°C | 14°C |
| August | 10°C | 12°C | 14°C |
| September | 9°C | 12°C | 14°C |
| October | 9°C | 12°C | 15°C |
| November | 11°C | 14°C | 16°C |
| December | 12°C | 15°C | 18°C |
* Click on a month to view detailed water temperature data.
Roaring Bay Beach: Weather Forecast
March 21
March 22
March 23
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Little Roaring Bay Beach
Kent Beach
Dover Foreshore
Dover Beach
Eggs & Bacon Bay Beach
Mickeys Beach
Hopetoun Beach
Randalls Bay Beach
Ninepin Point Beach
Swimming Conditions
Swimming at Roaring Bay Beach is allowed and can be quite pleasant when the weather is calm. The bay offers a degree of natural shelter, which often means smaller waves and gentler conditions compared with more exposed Tasman Sea beaches. This makes short swims and relaxed dips popular in summer, especially close to shore. Even so, the water remains cool, so most people limit their time in the sea, and wetsuits are common outside peak summer. During windy weather or larger swell, conditions can change quickly. Overall, Roaring Bay Beach offers good cold-water swimming by Tasmanian standards, best enjoyed in summer and during settled conditions.
