Somerset – current water temperature and swimming conditions

This page shows the current water temperature at Somerset 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

18.1°C

Today

18.1°C

Yesterday

18.4°C

A Week Ago

The average sea water temperature today in Somerset is about 18°C.

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

⚠️ Water in this range feels cool but still manageable for many swimmers. Short to moderate swims are comfortable, especially in warm weather. Some people may prefer a wetsuit for longer stays, particularly when swimming actively or outside peak summer conditions.

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 February 18 to March 20

Water temperatures in Somerset 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 Somerset will be 18.3°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
Mar 12	18.3°C	19.0°C
Mar 13	18.3°C	19.0°C
Mar 14	18.4°C	18.8°C
Mar 15	18.3°C	18.5°C
Mar 16	18.1°C	18.8°C
Mar 17	18.1°C	19.0°C
Mar 18	18.1°C	19.3°C
Mar 19	18.1°C	18.3°C
Mar 20	18.1°C	18.3°C	18.1°C
Mar 21		18.3°C	18.1°C
Mar 22		18.5°C	18.2°C
Mar 23		18.5°C	18.2°C
Mar 24		18.8°C	18.2°C
Mar 25		18.0°C	18.3°C
Mar 26		18.5°C	18.3°C
Mar 27		18.5°C	18.3°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 Somerset 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

Somerset lies on Tasmania’s north-west coast along the Bass Strait, where the sea keeps things cool and clear throughout the year. Water temperatures here follow a steady seasonal pattern. In summer, from December to February, the sea usually reaches around 15–17 °C, which feels brisk but refreshing on warm days. Autumn brings a gradual drop to roughly 13–15 °C, while winter is the coldest period, with temperatures commonly around 11–12 °C. During spring, the water slowly warms again, typically sitting between 12–14 °C as conditions begin to improve and daylight increases.

Monthly Water Temperature Range (Min, Max & Average)

Month	Min	Avg	Max
January	15°C	18°C	21°C
February	16°C	18°C	21°C
March	16°C	19°C	21°C
April	15°C	18°C	20°C
May	14°C	16°C	19°C
June	12°C	15°C	18°C
July	11°C	14°C	16°C
August	10°C	13°C	16°C
September	11°C	13°C	16°C
October	11°C	13°C	17°C
November	12°C	14°C	18°C
December	14°C	16°C	20°C

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

Somerset: Weather Forecast

March 21

13°C / 21°C

clear sky

humidity: 75% | wind: 7 kmh

March 22

13°C / 19°C

few clouds: 11-25%

humidity: 80% | wind: 7 kmh

March 23

11°C / 20°C

light rain

humidity: 82% | wind: 11 kmh

Local Water Conditions and Nearby Spots

Nearby Beaches and Water Temperatures

Fairlands Beach

⭐ 3.0/5

17.7°C

Somerset Beach

⭐ 3.5/5

18.5°C

Cooee Beach

⭐ 3.1/5

18.0°C

Burnie Beach

⭐ 2.9/5

18.9°C

East Wynyard Beach

⭐ 3.5/5

17.2°C

South Burnie Beach

⭐ 3.0/5

19.0°C

Wivenhoe Beach

⭐ 3.8/5

17.7°C

Fossil Bluff

⭐ 2.8/5

17.2°C

Swimming Conditions

Swimming in Somerset is allowed and is reasonably popular when the weather and sea state are favourable. The local beaches and foreshore areas are often less exposed than fully open Bass Strait beaches, which can mean gentler waves on calm days. In summer, short swims and casual dips are common, especially during settled spells, while longer swims are less frequent due to the cool water. Outside the warmest months, swimmers are usually experienced or wearing wetsuits. While conditions are generally manageable, cold water and occasional rips mean it’s important to stay aware of local advice. Overall, Somerset offers refreshing cold-water swimming, best enjoyed in summer under calm conditions.