Tasman Sea – Water Temperature near Australia

The Tasman Sea borders Australia’s southeast and experiences cooler water temperatures compared to tropical regions. Seasonal changes are more pronounced, influencing swimming conditions and coastal weather patterns.

Current Water Temperature

16.3°C

minimum

21.7°C

average

25.9°C

maximum

The current water temperature in the Tasman Sea today is within the range of 16-26°C. Thus, the average water temperature is about 22°C. This water feels mild to warm and is comfortable for the majority of swimmers. Swimming is enjoyable, though longer stays may feel cooler for some people, especially in windy conditions. These temperatures are well suited to family outings and active swimming, particularly on warm days.

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

Water Temperature Over the Last 60 Days

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	21.0°C	28°C
February	14°C	22.0°C	29°C
March	15°C	19.0°C	28°C
April	12°C	18.0°C	27°C
May	11°C	15.0°C	26°C
June	10°C	13.0°C	24°C
July	10°C	12.0°C	23°C
August	9°C	12.0°C	23°C
September	9°C	12.0°C	22°C
October	9°C	13.0°C	26°C
November	11°C	16.0°C	26°C
December	12°C	18.0°C	27°C

The Tasman Sea borders Australia’s east and south-east coast, influencing water temperatures from Queensland down through New South Wales, Victoria, and around Tasmania. Sea temperatures vary with latitude and season, warmed by the East Australian Current in the north and cooled by Southern Ocean influences further south. Along the New South Wales coast, water temperatures typically sit around 18–20°C in winter and rise to about 22–25°C in summer. In southern Victoria and Tasmania, the Tasman Sea is noticeably cooler, with winter temperatures often around 12–14°C and summer values generally reaching 16–19°C, occasionally a touch higher during settled weather.

Swimming Conditions

Swimming in the Tasman Sea is widely allowed and very popular, especially along the New South Wales coast where summer water temperatures are comfortable for most people. From late spring through early autumn, swimming conditions are generally favourable, particularly at patrolled beaches and sheltered bays. In Victoria and Tasmania, swimming is more seasonal due to cooler water, with summer being the main period for comfortable dips, often with wetsuits used outside peak warmth. Surf, rip currents, and changing weather can affect safety, so swimmers usually stick to flagged beaches or calmer spots, making the Tasman Sea a rewarding but respect-worthy swimming environment.

Australian States and Territories Along the Tasman Sea

Most Viewed Place in the Tasman Sea

Other Australian Seas, Oceans and Straits

Frequently Asked Questions

What is the current water temperature in the Tasman Sea in Australia?

The current water temperature in the Tasman Sea today is within the range of 16-26°C.

What is the average water temperature by month in the Tasman Sea in Australia?

Average monthly water temperatures in the Tasman Sea range from about 9–11°C in the coldest winter and early spring months to around 23–26°C during the warmest summer months.

When is the water warmest in the Tasman Sea in Australia?

The warmest water temperatures in the Tasman Sea usually occur in February, when temperatures can reach up to 26°C.

Is the water temperature suitable for swimming in the Tasman Sea in Australia?

The water temperature can be suitable for swimming during the warmer months, particularly in summer. Outside this period, cooler water temperatures may limit swimming comfort for many people.

What is the best time of year to swim in the Tasman Sea in Australia?

The best time to swim in the Tasman Sea is generally from January to March, when water temperatures are at their highest.

Does water temperature vary across different parts of the Tasman Sea in Australia?

Yes, water temperature varies across the Tasman Sea. Northern coastal areas tend to be slightly warmer, while southern and more exposed regions experience cooler and more variable conditions.

Do you need a wetsuit to swim in the Tasman Sea in Australia?

A wetsuit is commonly used outside the peak summer months, as water temperatures often remain below 18°C for much of the year.

Where does the water temperature data for Australia come from?

Water temperature data is derived from satellite observations, coastal monitoring stations, and long-term climate records, providing reliable monthly and seasonal averages.