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

No warnings for the Northern Territory

Forecast issued at 2:30 am CST on Saturday 8 August 2026.

Weather Situation

A high [1025 hPa] over southeastern Australia maintains east to southeasterly winds over coastal waters. Winds will weaken and tend southeast to northeasterly as a trough moves through Central Australia on the weekend.

Forecast for Saturday until midnight

Winds
Variable about 10 knots becoming east to southeasterly 10 to 15 knots in the morning then becoming east to northeasterly below 10 knots in the evening.
Seas
Below 1 metre.
Swell
East to northeasterly below 1 metre.
Weather
Sunny.

Sunday 9 August

Winds
Variable about 10 knots becoming east to northeasterly 10 to 15 knots in the evening.
Seas
Below 1 metre.
Swell
Below 0.5 metres.
Weather
Mostly sunny. The chance of morning fog south of Numbulwar with reduced visibility.

Monday 10 August

Winds
Northeasterly 10 to 15 knots becoming variable about 10 knots during the morning then becoming easterly 10 to 15 knots during the afternoon.
Seas
Below 1 metre.
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 am CST Saturday.

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