Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

Marine (lite) Home

IDD11030

Australian Government Bureau of Meteorology
Northern Territory

Coastal Waters Forecast for the Northern Territory

Issued at 4:00 pm CST on Thursday 19 May 2022
for the period until midnight CST Sunday 22 May 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 high [1033 hPa] in the Bight extends a ridge through central and eastern Australia. The ridge will strengthen over the next couple of days and will lead to fresh winds over Northern Territory coastal waters.

Beagle Bonaparte Coast: WA-NT Border to Cape Fourcroy

Forecast for Thursday 19 May until midnight

Winds: Variable about 10 knots. Seas: Below 0.5 metres. Swell: Below 0.5 metres. Weather: Clear.

Forecast for Friday 20 May

Winds: Variable about 10 knots becoming easterly 10 to 15 knots in the morning then becoming variable about 10 knots in the middle of the day. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.

Forecast for Saturday 21 May

Winds: Variable about 10 knots becoming east to southeasterly 15 to 20 knots before dawn then tending south to southeasterly 10 to 15 knots in the late afternoon. Seas: Around 1 metre. Swell: North to northeasterly below 1 metre. Weather: Sunny.

Forecast for Sunday 22 May

Winds: East to southeasterly 15 to 20 knots becoming variable about 10 knots during the afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon or evening. Swell: Northwest to northeasterly below 1 metre. Weather: Sunny.

North Tiwi Coast: Cape Fourcroy to Cape Don

Forecast for Thursday 19 May until midnight

Winds: Easterly 10 to 15 knots decreasing to about 10 knots in the late evening. Seas: Below 1 metre. Swell: East to northeasterly below 1 metre. Weather: Clear.

Forecast for Friday 20 May

Winds: Easterly about 10 knots increasing to 10 to 15 knots before dawn. Winds reaching up to 20 knots offshore in the late morning and afternoon. Seas: Around 1 metre. Swell: East to northeasterly below 1 metre. Weather: Sunny.

Forecast for Saturday 21 May

Winds: Easterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore during the morning. Swell: East to northeasterly around 1 metre. Weather: Mostly sunny.

Forecast for Sunday 22 May

Winds: Easterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Swell: East to northeasterly around 1 metre. Weather: Sunny.

Van Diemen Gulf

Forecast for Thursday 19 May until midnight

Winds: North to northeasterly about 10 knots. Seas: Below 0.5 metres. Swell: Below 0.5 metres. Weather: Clear.

Forecast for Friday 20 May

Winds: Easterly 10 to 15 knots tending northeasterly in the late afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.

Forecast for Saturday 21 May

Winds: East to southeasterly 15 to 20 knots tending east to northeasterly 10 to 15 knots in the early afternoon. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon. Swell: Below 0.5 metres. Weather: Sunny.

Forecast for Sunday 22 May

Winds: East to southeasterly 15 to 20 knots becoming variable about 10 knots during the afternoon. Seas: Around 1 metre. Swell: Below 0.5 metres. Weather: Sunny.

Arafura Coast: Cape Don to Cape Wessel

Forecast for Thursday 19 May until midnight

Winds: Easterly 10 to 15 knots. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Clear.

Forecast for Friday 20 May

Winds: East to southeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres in the far north. Swell: Northeast to southeasterly below 1 metre. Weather: Sunny.

Forecast for Saturday 21 May

Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Easterly below 1 metre. Weather: Sunny.

Forecast for Sunday 22 May

Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Easterly below 1 metre. Weather: Mostly sunny.

Gove Peninsula Coast: Cape Wessel to Cape Arnhem

Forecast for Thursday 19 May until midnight

Winds: Southeasterly 10 to 15 knots. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Clear.

Forecast for Friday 20 May

Winds: Southeasterly 10 to 15 knots, reaching up to 20 knots in the far northeast during the morning. Seas: Around 1 metre. Swell: Below 0.5 metres. Weather: Mostly sunny.

Forecast for Saturday 21 May

Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: Southeasterly below 1 metre. Weather: Partly cloudy.

Forecast for Sunday 22 May

Winds: Southeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore south of Cape Wessel. Swell: Southeasterly below 1 metre. Weather: Mostly sunny.

Roper Groote Coast: Cape Arnhem to QLD-NT Border

Forecast for Thursday 19 May until midnight

Winds: East to southeasterly 10 to 15 knots decreasing to about 10 knots in the late evening. Seas: Below 1 metre. Weather: Clear.

Forecast for Friday 20 May

Winds: Southeasterly about 10 knots increasing to 10 to 15 knots early in the morning. Winds reaching up to 20 knots inshore in the evening. Seas: Around 1 metre. Weather: Sunny.

Forecast for Saturday 21 May

Winds: Southeasterly 15 to 25 knots. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Weather: Sunny.

Forecast for Sunday 22 May

Winds: Southeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Weather: Sunny.

Darwin Harbour

Forecast for Thursday 19 May until midnight

Winds: West to northwesterly below 10 knots. Seas: Below 0.5 metres. Swell: Below 0.5 metres. Weather: Clear.

Forecast for Friday 20 May

Winds: Easterly about 10 knots becoming north to northeasterly during the afternoon. Seas: Below 0.5 metres. Swell: Below 0.5 metres. Weather: Sunny.

Forecast for Saturday 21 May

Winds: East to northeasterly about 10 knots tending east to southeasterly 10 to 15 knots in the morning then becoming variable about 10 knots in the late afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.

Forecast for Sunday 22 May

Winds: East to southeasterly about 10 knots increasing to 10 to 15 knots during the morning then becoming variable below 10 knots during the afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.

The next routine forecast will be issued at 4:45 am CST Friday.

* 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.