Van Diemen Gulf Forecast

View the current warnings for the Northern Territory

Forecast issued at 2:30 pm CST on Tuesday 8 September 2026.

Weather Situation

A weak ridge persists over the eastern coastal waters while a weak trough sits near the western Top End Coast. The ridge will extend towards the western coastal waters from mid-week and gradually strengthen into the weekend, driving a fresh easterly airflow over the eastern coastal waters.

Forecast for Tuesday until midnight

Winds
Northwest to northeasterly 10 to 15 knots becoming variable about 10 knots in the late evening.
Seas
Below 1 metre.
Swell
Below 0.5 metres.
Weather
Clear.

Wednesday 9 September

Winds
Variable about 10 knots becoming north to northeasterly 10 to 15 knots in the early afternoon then decreasing to about 10 knots in the late evening.
Seas
Below 1 metre.
Swell
Below 0.5 metres.
Weather
Sunny.

Thursday 10 September

Winds
East to northeasterly about 10 knots increasing to 15 to 20 knots before dawn.
Seas
Around 1 metre.
Swell
Below 0.5 metres.
Weather
Sunny.

Friday 11 September

Winds
East to northeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the evening.
Swell
Below 0.5 metres.
Weather
Mostly sunny.

Please be awareWind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.

Nearby Coastal Waters

QLD - Torres Strait - Coastal Waters Forecast QLD - North East Gulf of Carpentaria - Coastal Waters Forecast QLD - South East Gulf of Carpentaria - Coastal Waters Forecast WA- North Kimberley - Coastal Waters Forecast Roper Groote Coast Forecast Gove Peninsula Coast Forecast Arafura Coast Forecast Van Diemen Gulf Forecast North Tiwi Coast Forecast Beagle Bonaparte Gulf Forecast

The next routine forecast will be issued at 8:30 pm CST Tuesday.

Product IDD11034