Northern Territory — Water Temperature Today and Throughout the Year
Discover water temperatures in Northern Territory (Australia), with real-time data and annual trends. Find all locations in the region and check the water temperature in them. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature and Swimming Overview
Regions and Map
Water Temperature Trends
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.