IDD11030
Australian Government Bureau of Meteorology
Northern Territory
Issued at 8:30 am CST on Wednesday 20 May 2026
for the period until midnight CST Friday 22 May 2026.
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.
A ridge of high pressure strengthening over Central Australia is directing moderate to fresh southeasterly winds over coastal waters, persisting for most of the week.
Winds: Southeasterly 15 to 20 knots, reaching up to 25 knots offshore south of Channel Point during the morning. Seas: 1 to 1.5 metres, decreasing to 1 metre by early evening. Swell: East to northeasterly below 1 metre. Weather: Partly cloudy.
Winds: East to southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon. Swell: East to northeasterly around 1 metre offshore. Weather: Sunny.
Winds: Southeasterly 15 to 20 knots becoming variable about 10 knots during the day. Seas: Around 1 metre. Swell: Northeasterly below 1 metre. Weather: Sunny.
Winds: Southeasterly 15 to 20 knots turning easterly in the late morning and early afternoon. Seas: 1 to 1.5 metres. Swell: Easterly around 1 metre. Weather: Mostly sunny.
Winds: East to southeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Swell: East to northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore around midday. Weather: Partly cloudy.
Winds: East to southeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Swell: East to northeasterly around 1 metre. Weather: Mostly sunny.
Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon. Swell: Below 0.5 metres. Weather: Sunny.
Winds: East to southeasterly 15 to 20 knots decreasing to about 10 knots in the late afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: Below 0.5 metres. Weather: Sunny.
Winds: Southeasterly 10 to 15 knots becoming variable about 10 knots during the afternoon. Seas: Around 1 metre. Swell: Below 0.5 metres. Weather: Sunny.
Winds: Southeasterly 15 to 20 knots, reaching up to 25 knots offshore west of Maningrida during the morning. Seas: 1.5 metres, increasing to 1.5 to 2 metres offshore west of Maningrida. Swell: East to southeasterly around 1 metre. Weather: Partly cloudy. 50% chance of showers.
Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres in the far north. Swell: East to southeasterly around 1 metre. Weather: Partly cloudy. 50% chance of showers.
Winds: Southeasterly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Swell: Easterly below 1 metre inshore, increasing to around 1 metre offshore. Weather: Partly cloudy. 50% chance of showers.
Winds: Southeasterly 15 to 20 knots, reaching up to 25 knots offshore south of Cape Wessel during the morning and early afternoon. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore south of Cape Wessel. Swell: Southeasterly around 1 metre, increasing to 1 to 1.5 metres during the afternoon, then tending south to southeasterly 1 to 1.5 metres later in the evening. Weather: Partly cloudy. 50% chance of showers.
Winds: East to southeasterly 15 to 20 knots, reaching up to 25 knots in the far northeast in the late evening. Seas: 1 to 1.5 metres. Swell: South to southeasterly 1 to 1.5 metres, decreasing to around 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening. Weather: Partly cloudy. 70% chance of showers.
Winds: East to southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: South to southeasterly around 1 metre. Weather: Mostly sunny. 50% chance of showers.
Winds: Southeasterly 15 to 25 knots, reaching up to 30 knots during the morning. Seas: 1.5 to 2.5 metres. Swell: East to southeasterly around 1 metre. Weather: Partly cloudy.
Winds: Southeasterly 15 to 20 knots, reaching up to 30 knots offshore south of Numbulwar during the morning. Seas: 1.5 to 2.5 metres. Swell: East to southeasterly around 1 metre. Weather: Partly cloudy.
Winds: Southeasterly 15 to 20 knots. Seas: 1 to 1.5 metres. Swell: East to southeasterly below 1 metre. Weather: Mostly sunny.
Winds: East to southeasterly 10 to 15 knots decreasing to about 10 knots in the evening. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.
Winds: East to southeasterly 10 to 15 knots decreasing to below 10 knots in the late afternoon. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.
Winds: Southeasterly 10 to 15 knots becoming variable about 10 knots during the morning. Seas: Below 1 metre. Swell: Below 0.5 metres. Weather: Sunny.
The next routine forecast will be issued at 2:30 pm CST Wednesday.
* 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.