Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

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IDD11030

Australian Government Bureau of Meteorology
Northern Territory

Coastal Waters Forecast for the Northern Territory

Issued at 4:45 am CST on Saturday 1 October 2022
for the period until midnight CST Monday 3 October 2022.

Please be aware
Wind 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.

Warning Information

For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation

A weak ridge will develop across the Top End during the weekend and build in strength during the week.

Beagle Bonaparte Coast: WA-NT Border to Cape Fourcroy

Forecast for Saturday 1 October until midnight

Winds: Variable about 10 knots. Seas: Below 1 metre, increasing to around 1 metre in the Beagle Gulf. Swell: Northeasterly below 1 metre. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm.

Forecast for Sunday 2 October

Winds: Variable about 10 knots. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Partly cloudy. 60% chance of showers. The chance of a thunderstorm.

Forecast for Monday 3 October

Winds: Variable about 10 knots. Seas: Below 0.5 metres. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm.

North Tiwi Coast: Cape Fourcroy to Cape Don

Forecast for Saturday 1 October until midnight

Winds: East to northeasterly 10 to 15 knots decreasing to about 10 knots in the late afternoon. Seas: Below 1 metre. Swell: East to northeasterly below 1 metre. Weather: Partly cloudy. 60% chance of showers.

Forecast for Sunday 2 October

Winds: East to northeasterly below 10 knots. Seas: Below 0.5 metres. Swell: East to northeasterly below 1 metre. Weather: Partly cloudy. 60% chance of showers. The chance of a thunderstorm.

Forecast for Monday 3 October

Winds: East to northeasterly below 10 knots. Seas: Below 0.5 metres. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm in the morning and afternoon.

Van Diemen Gulf

Forecast for Saturday 1 October until midnight

Winds: Easterly 10 to 15 knots becoming variable about 10 knots in the middle of the day then becoming northwest to northeasterly 10 to 15 knots in the early afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Partly cloudy. The chance of a thunderstorm from late this morning.

Forecast for Sunday 2 October

Winds: Variable about 10 knots becoming north to northeasterly 10 to 15 knots in the late afternoon then decreasing to below 10 knots in the late evening. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Partly cloudy. 60% chance of showers. The chance of a thunderstorm.

Forecast for Monday 3 October

Winds: East to northeasterly about 10 knots tending north to northeasterly 10 to 15 knots during the afternoon then decreasing to below 10 knots during the evening. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Partly cloudy. 50% chance of showers. The chance of a thunderstorm.

Arafura Coast: Cape Don to Cape Wessel

Forecast for Saturday 1 October until midnight

Winds: Easterly 10 to 15 knots. Seas: Below 1 metre. Swell: Easterly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm.

Forecast for Sunday 2 October

Winds: East to northeasterly about 10 knots. Seas: Below 1 metre. Swell: Easterly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm in the morning and afternoon.

Forecast for Monday 3 October

Winds: Easterly 10 to 15 knots. Seas: Below 1 metre. Swell: Easterly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm in the morning and afternoon.

Gove Peninsula Coast: Cape Wessel to Cape Arnhem

Forecast for Saturday 1 October until midnight

Winds: Easterly 10 to 15 knots turning southeasterly during the afternoon and evening. Winds reaching up to 20 knots in the far northeast during the morning and again in the late evening. Seas: Around 1 metre. Swell: East to southeasterly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm.

Forecast for Sunday 2 October

Winds: Southeasterly 10 to 15 knots turning easterly early in the morning. Seas: Around 1 metre. Swell: Easterly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm in the morning and afternoon.

Forecast for Monday 3 October

Winds: Easterly 10 to 15 knots. Seas: Around 1 metre. Swell: Easterly below 1 metre. Weather: Mostly sunny. The chance of thunderstorms inshore in the afternoon.

Roper Groote Coast: Cape Arnhem to QLD-NT Border

Forecast for Saturday 1 October until midnight

Winds: East to southeasterly 10 to 15 knots tending east to northeasterly below 10 knots during the afternoon and evening. Seas: Below 1 metre. Swell: East to southeasterly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm northeast of Groote Eylandt during the morning and afternoon.

Forecast for Sunday 2 October

Winds: Variable about 10 knots becoming east to southeasterly 10 to 15 knots in the morning then tending east to northeasterly in the evening. Seas: Below 1 metre. Swell: East to northeasterly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm in the morning and afternoon.

Forecast for Monday 3 October

Winds: East to northeasterly about 10 knots increasing to 10 to 15 knots during the afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.

Darwin Harbour

Forecast for Saturday 1 October until midnight

Winds: Easterly 10 to 15 knots shifting west to northwesterly in the early afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm.

Forecast for Sunday 2 October

Winds: North to northwesterly below 10 knots becoming east to southeasterly before dawn then becoming northerly in the middle of the day. Seas: Below 0.5 metres. Swell: Below 0.5 metres. Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm.

Forecast for Monday 3 October

Winds: Northerly below 10 knots becoming east to northeasterly during the morning then becoming north to northwesterly during the day. Seas: Below 0.5 metres. Swell: Below 0.5 metres. Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm.

The next routine forecast will be issued at 4:00 pm CST Saturday.

* Calls to 1300 number cost around 27.5c inc. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine

Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.