Northern Territory Sea Temperature

This page provides detailed information about the water temperature in Northern Territory, Australia. All countries, cities and resorts on the coast. The range of sea temperatures for today. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Sea Temperature

28.7°C

minimal

29.3°C

average

30.5°C

maximum

Graph of Sea Temperature Changes in Northern Territory Over the Last 60 Days

Water temperature in the Northern Territory by month

Month	Minimum	Maximum
January	27°C	33°C
February	27°C	32°C
March	27°C	32°C
April	26°C	32°C
May	24°C	32°C
June	22°C	30°C
July	21°C	28°C
August	22°C	29°C
September	23°C	31°C
October	23°C	33°C
November	27°C	33°C
December	28°C	33°C

The Warmest Places on the Seaside in Northern Territory Today

31°C

Alyangula

30°C

Nhulunbuy

29°C

Larrakeyah

29°C

Parap

29°C

Stuart Park

29°C

Darwin

List of All Coastal Cities in Northern Territory

Seas and Oceans that Border Northern Territory

Arafura Sea

Australia: List of Regions

Water Temperature in Northern Territory: General Trends and Swimming Opportunities

In the Northern Territory of Australia, the coastal water temperatures are consistently warm throughout the year due to its tropical climate. During the summer months (December to February), the sea temperatures typically range from 82°F to 86°F (28°C to 30°C), making it ideal for swimming, snorkeling, and diving. These warm waters, combined with the region’s stunning coral reefs, attract many tourists seeking the perfect beach experience. Popular destinations like Darwin and the Tiwi Islands often feature these temperatures, offering a comfortable environment for water activities.

As the year transitions into autumn and winter (March to August), the water temperature in the Northern Territory cools slightly but remains very pleasant for aquatic activities. During these months, the sea temperatures range from 79°F to 82°F (26°C to 28°C). While this drop is noticeable, it is still warm enough to enjoy the water, especially in the northern coastal areas. In some parts of the region, the temperature may even remain near 82°F (28°C) throughout the cooler months, making the Northern Territory a popular destination for warm-water ocean activities year-round.

By spring (September to November), the water temperatures begin to rise again, reaching levels between 82°F and 86°F (28°C to 30°C). This consistent warmth supports marine life and makes the region attractive for visitors looking to enjoy beach holidays or water sports. The Northern Territory’s coastal waters are generally welcoming for swimming, surfing, and exploring marine ecosystems, with mild fluctuations in temperature ensuring a comfortable environment for water-based activities no matter the season.

Geographical Location of Northern Territory

Frequently Asked Questions About Northern Territory and its Water Temperatures

What is the current sea temperature on the coast of Northern Territory in Australia?

The sea temperature today on the coast of Northern Territory ranges from 84°F (28.7°C) in Fannie Bay to 87°F (30.5°C) in Alyangula.

When does the sea in Northern Territory in Australia reach a comfortable swimming temperature?

In Northern Territory (Australia) the sea temperature is comfortable throughout the year. It should be noted that the mentioned values apply to the warmest point of the region. In other areas of Northern Territory, the values may vary.

What are the most popular seaside resorts in Northern Territory?

The most popular places on the coast of Northern Territory (Australia), based on our visitors' interest in the water temperature, are cities Darwin, Alyangula, Larrakeyah, Parap, and Nightcliff.

Which seas and oceans does the Northern Territory have access to?

Northern Territory (Australia) has access only to the Arafura Sea.