Connellys Marsh – current water temperature and swimming conditions

This page shows the current water temperature at Connellys Marsh 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

13.1°C

Today

13.2°C

Yesterday

14.2°C

A Week Ago

The average sea water temperature today in Connellys Marsh is about 13°C.

Water Temperature in Connellys Marsh: 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

From May 22 to June 21

Water temperatures in Connellys Marsh 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 Connellys Marsh 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

Date	Current	Average	Forecast
Jun 13	14.3°C	13.3°C
Jun 14	14.2°C	13.3°C
Jun 15	14.2°C	13.3°C
Jun 16	14.2°C	13.0°C
Jun 17	13.4°C	13.3°C
Jun 18	13.2°C	13.0°C
Jun 19	13.3°C	13.0°C
Jun 20	13.2°C	13.0°C
Jun 21	13.1°C	13.0°C	13.1°C
Jun 22		13.5°C	13.1°C
Jun 23		13.3°C	13.2°C
Jun 24		13.0°C	13.2°C
Jun 25		13.5°C	13.2°C
Jun 26		13.5°C	13.3°C
Jun 27		13.3°C	13.3°C
Jun 28		13.3°C	13.3°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 Connellys Marsh 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

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Connellys Marsh sits along Tasmania’s south-east coast, opening onto the Tasman Sea with a mix of open shoreline and nearby sheltered water. Sea temperatures here follow the typical east coast pattern and remain cool year-round. In summer, from December to February, the water usually reaches around 16–18 °C, which feels refreshing but swimmable on warm, calm days. Autumn brings a gradual cooling to about 14–16 °C, while winter is noticeably colder, commonly around 11–13 °C. During spring, temperatures slowly rise again, generally sitting between 13–15 °C as daylight increases and weather becomes more settled.

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	10°C	12°C	14°C
October	10°C	12°C	15°C
November	12°C	14°C	16°C
December	13°C	15°C	18°C

* Click on a month to view detailed water temperature data.

Connellys Marsh: Weather Forecast

June 22

7°C / 12°C

overcast clouds: 85-100%

humidity: 68% | wind: 14 kmh

June 23

4°C / 9°C

scattered clouds: 25-50%

humidity: 69% | wind: 11 kmh

June 24

4°C / 10°C

clear sky

humidity: 69% | wind: 11 kmh

Local Water Conditions and Nearby Spots

Nearby Beaches and Water Temperatures

Connellys Bay

⭐ 2.9/5

12.8°C

Primrose Sands

⭐ 3.6/5

12.1°C

Roaring Beach

⭐ 3.5/5

13.4°C

Primrose Beach

⭐ 3.1/5

11.9°C

Lime Bay

⭐ 2.9/5

12.8°C

Carlton Beach

⭐ 4.3/5

13.4°C

Carlisle Beach

⭐ 2.6/5

12.5°C

Dunalley Beach

⭐ 4.3/5

12.6°C

Okines Beach

⭐ 3.1/5

13.4°C

Swimming Conditions

Swimming at Connellys Marsh is allowed, though it suits swimmers who are mindful of conditions. The beach is relatively exposed to the Tasman Sea, so waves and currents can build, particularly during windy periods or larger swell. On calm summer days, short swims and cooling dips close to shore are enjoyable, with the water feeling crisp rather than cold. Even at peak summer, most swimmers keep their time in the water brief, and wetsuits are common outside the warmest weeks. When conditions turn rough, swimming is better avoided. Overall, Connellys Marsh offers classic Tasmanian cold-water swimming, best enjoyed in summer when the sea is settled and conditions are carefully watched.