Roper Groote Coast Forecast: Cape Arnhem to QLD-NT Border

View the current warnings for the Northern Territory

Forecast issued at 2:32 pm CST on Monday 17 November 2025.

Weather Situation

A trough over the Timor Sea extends across the Gulf of Carpentaria directing northwesterly winds over the northern coastal areas, and fresh southeasterly winds over southern coastal areas. A Tropical Low (1002 hPa) is developing in the Timor Sea, and is expected to move in a general east to northeast direction.

Forecast for Monday until midnight

Winds
East to southeasterly 10 to 15 knots becoming variable about 10 knots in the evening.
Seas
Below 1 metre.
Swell
Below 0.5 metres.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm.

Tuesday 18 November

Winds
Variable about 10 knots becoming south to southeasterly 10 to 15 knots in the early morning then tending east to southeasterly in the middle of the day. Winds reaching up to 20 knots offshore south of Numbulwar during the morning and early afternoon.
Seas
Around 1 metre.
Swell
Below 0.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm.

Wednesday 19 November

Winds
Variable about 10 knots becoming southeasterly 10 to 15 knots in the early morning then tending northeast to southeasterly in the late afternoon.
Seas
Below 1 metre.
Swell
Below 0.5 metres.
Weather
Mostly sunny. The chance of a thunderstorm north of Numbulwar in the morning and afternoon.

Thursday 20 November

Winds
Easterly about 10 knots increasing to 10 to 15 knots during the morning.
Seas
Around 1 metre.
Swell
Northeast to southeasterly below 1 metre.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the morning and afternoon.

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 Monday.

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