Seabreeze.com.au
Buy & Sell
Gallery
Gallery
Seabreeze Seabreeze
Weather
Buy & Sell Forums Gallery Login Join (Free) Help

BoM Eighteen Mile Marine Weather Forecast

Show the MSLP/Synoptic chart

Mean Sea Level Prognosis Charts

Mean Sea Level Prognosis Charts

Other NSW Coastal Waters Forecasts

Forecast for Thursday, 21 May
Weather: Partly cloudy. 60% chance of showers.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots offshore in the late morning and early afternoon.
Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
Swell: Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore north of Moruya Heads. Easterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Forecast for Friday, 22 May
Weather: Cloudy. 70% chance of showers.
Winds: Southerly 15 to 20 knots turning southeasterly early in the morning.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Easterly around 1 metre, increasing to 1 to 1.5 metres around midday.
Forecast for Saturday, 23 May
Weather: Cloudy. 80% chance of showers.
Winds: East to southeasterly 10 to 15 knots tending east to northeasterly during the afternoon.
Seas: Around 1 metre.
Swell: Easterly 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.

Forecast for Thursday, 21 May
Weather: Cloudy. 95% chance of showers.
Winds: Southerly 25 to 30 knots.
Seas: 2.5 to 3 metres.
Swell: Southerly 2 to 3 metres. Easterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Forecast for Friday, 22 May
Weather: Cloudy. 95% chance of showers.
Winds: Southerly 30 to 35 knots.
Seas: 3 to 4 metres.
Swell: Southerly 3 to 4 metres, increasing to 4 to 6 metres during the morning, then tending south to southeasterly 4 to 5 metres later in the evening.
Forecast for Saturday, 23 May
Weather: Partly cloudy. 90% chance of showers.
Winds: Southerly 25 to 30 knots turning southeasterly 20 to 30 knots during the evening.
Seas: 2 to 3 metres.
Swell: Southeasterly 4 to 5 metres.

Forecast for Thursday, 21 May
Weather: Cloudy. 95% chance of showers.
Winds: Southerly 25 to 30 knots.
Seas: 2.5 to 3 metres.
Swell: Southerly 2 to 3 metres. Easterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Forecast for Friday, 22 May
Weather: Cloudy. 95% chance of showers.
Winds: Southerly 25 to 30 knots, reaching up to 35 knots during the day.
Seas: 3 metres.
Swell: Southerly 3 to 4 metres, tending southeasterly 4 to 5 metres during the morning.
Forecast for Saturday, 23 May
Weather: Partly cloudy. 90% chance of showers.
Winds: Southerly 25 to 30 knots turning southeasterly 20 to 25 knots during the day.
Seas: 2 to 3 metres, decreasing to 1.5 to 2 metres during the afternoon or evening.
Swell: Southeasterly 4 metres.

Forecast for Thursday, 21 May
Weather: Partly cloudy. 50% chance of showers offshore, near zero chance elsewhere.
Winds: South to southwesterly 15 to 20 knots, reaching up to 25 knots offshore north of Merimbula in the early afternoon.
Seas: 1 to 2 metres, decreasing to 1 metre later in the evening.
Swell: Southerly 1 to 1.5 metres. Easterly 1 to 1.5 metres.
Forecast for Friday, 22 May
Weather: Cloudy. 60% chance of showers.
Winds: South to southwesterly 10 to 15 knots, reaching up to 20 knots offshore north of Merimbula during the morning. Winds turning east to southeasterly during the morning and early afternoon.
Seas: Around 1 metre.
Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Easterly 1 to 1.5 metres, decreasing to around 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon.
Forecast for Saturday, 23 May
Weather: Cloudy. 70% chance of showers.
Winds: Easterly 10 to 15 knots turning northeasterly during the morning.
Seas: Around 1 metre.
Swell: Easterly 1.5 metres, increasing to 1.5 to 2.5 metres during the morning. Southerly around 1 metre.

Forecast for Thursday, 21 May
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 20 to 25 knots, reaching up to 30 knots offshore north of Norah Head during the afternoon and evening.
Seas: 1.5 to 2.5 metres.
Swell: Southerly 2 to 3 metres. Easterly 1 to 1.5 metres.
Forecast for Friday, 22 May
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 20 to 30 knots turning southeasterly 20 to 25 knots in the evening.
Seas: 1.5 to 2.5 metres.
Swell: Southeasterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore north of Norah Head around midday.
Forecast for Saturday, 23 May
Weather: Partly cloudy. 90% chance of showers.
Winds: Southeasterly 15 to 25 knots decreasing to 10 to 15 knots during the evening.
Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon or evening.
Swell: Southeasterly 3 to 4 metres, tending easterly 3 to 4 metres during the morning.

Forecast for Thursday, 21 May
Weather: Partly cloudy. 80% chance of showers.
Winds: Southerly 20 to 25 knots, reaching up to 30 knots inshore in the late morning and early afternoon.
Seas: 1.5 to 2.5 metres.
Swell: Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres around midday. Easterly 1.5 metres.
Forecast for Friday, 22 May
Weather: Cloudy. 70% chance of showers.
Winds: Southerly 15 to 20 knots, reaching up to 25 knots offshore north of Point Perpendicular during the morning. Winds turning southeasterly during the morning.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres north of Point Perpendicular.
Swell: Southeasterly 1.5 to 2.5 metres. Southerly below 1 metre, increasing to around 1 metre south of Port Kembla.
Forecast for Saturday, 23 May
Weather: Cloudy. 90% chance of showers.
Winds: Southeasterly 15 to 20 knots turning easterly 10 to 15 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon or evening.
Swell: Easterly 2.5 to 3 metres.

Forecast for Thursday, 21 May
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 20 to 30 knots.
Seas: 2 to 3 metres.
Swell: Southerly 2.5 to 3 metres. Easterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Forecast for Friday, 22 May
Weather: Cloudy. 95% chance of showers.
Winds: Southerly 25 to 30 knots.
Seas: 2 to 3 metres.
Swell: Southerly 3 metres, tending southeasterly 3 to 5 metres during the morning.
Forecast for Saturday, 23 May
Weather: Partly cloudy. 90% chance of showers.
Winds: Southerly 20 to 30 knots turning southeasterly 15 to 25 knots during the morning.
Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon or evening.
Swell: Southeasterly 4 metres, tending easterly 4 metres during the afternoon or evening.

Forecast for Thursday, 21 May
Weather: Partly cloudy. 90% chance of showers.
Winds: Southerly 20 to 25 knots, reaching up to 30 knots in the late morning and early afternoon.
Seas: 2 to 2.5 metres.
Swell: Southerly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres later in the evening. Easterly 1.5 metres.
Forecast for Friday, 22 May
Weather: Cloudy. 80% chance of showers.
Winds: Southerly 20 to 25 knots turning southeasterly 15 to 20 knots in the late afternoon.
Seas: 1.5 to 2 metres.
Swell: Southeasterly 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
Forecast for Saturday, 23 May
Weather: Partly cloudy. 90% chance of showers.
Winds: Southeasterly 15 to 20 knots turning easterly 10 to 15 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon or evening.
Swell: Easterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Eighteen Mile
▲ N
-
Warnings
No warnings within 100 km.
State Wide
Marine Surf Coastal
View all NSW warnings
Temperature
Eighteen Mile
20 °C 8 °C 4am 23 °C 1pm
↑ Warming
Now: 20 °C
Weather Now for Eighteen Mile
Observations not available
Nearby Wind
50 km radius
N S W E Tabulam
Eighteen Mile
13 kn SSE
Recent Locations
Eighteen Mile
13 kn SSE
 21°
Younghusband
3 kn NE
 15°
Tambar Springs
12 kn SSE
 17°
Sun
6:28am rise 5:03pm set
10 h 34 m of daylight
Now: 10:25am
-65 seconds than yesterday
Moon
10:52am rise 9:27pm set
23% illuminated
Waxing Crescent
Live Weather
Nearby
Grafton Research Stn, NSW
13 kn SSE
 21°
Windiest in Australia
Lord Howe Island Windy Point, NSW
35 kn S
Most Windless in Australia
Perth (Coastal), WA
Calm E
 12°
Hottest in Australia
Coconut Island, QLD
Calm
29°
Coldest in Australia
Mount Read, TAS
6 kn W
 4°
More locations...
Return To Classic site 😭
Or... let us know if a problem, so we can tweak! 😅
Weather

Sydney weather

Melbourne weather

Brisbane weather

Perth weather

Adelaide weather

Darwin weather

Hobart weather

Canberra weather

Location Map

Location Search

Activities

Kitesurfing

Windsurfing

Stand up paddle

Surfing

Boating

Sailing

Fishing

News

Articles

About

About us

Contact us

Support

Write To Us

Help/FAQ

Report Bug

Suggestion Box

Copyright © 1997-2026 Seabreeze.com.au
Terms of use
Privacy policy