View the current warnings for Western Australia
Forecast issued at 4:13 pm WST on Monday 17 December 2018.
Weather Situation
A trough lies over eastern parts of the State and slowly moves eastwards contracting into South Australia later this evening. A ridge builds to the south of the State during the week before a new trough deepens near the west coast from Friday.
Forecast for Monday until midnight
Strong Wind Warning for Monday for Perth Coast
- Winds
- South to southwesterly 20 to 25 knots shifting south to southeasterly in the evening. Winds reaching up to 30 knots at times.
- Seas
- 2.5 to 3 metres.
- Swell
- Southwesterly 2 to 2.5 metres.
- Weather
- Clear.
Tuesday 18 December
- Winds
- South to southeasterly 15 to 20 knots becoming south to southwesterly 15 to 20 knots from about midday then becoming south to southeasterly 15 to 20 knots again in the evening. Winds reaching up to 25 knots during the mid to late afternoon. Winds tending 10 to 15 knots with the midday wind change.
- Seas
- 1.5 to 2.5 metres, decreasing to 1 metre during the morning, then increasing to 1.5 to 2 metres during the afternoon.
- Swell
- Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres around midday.
- Weather
- Partly cloudy.
Wednesday 19 December
- Winds
- South to southeasterly 10 to 15 knots becoming south to southwesterly 15 to 20 knots from about midday, then becoming south to southeasterly 15 to 20 knots in the evening. Winds may reach up to 25 knots during the mid to late afternoon. Winds tending about 10 knots with the midday wind change.
- Seas
- 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2 metres during the afternoon.
- Swell
- Southwesterly 1.5 metres, increasing to 1.5 to 2 metres around midday.
- Weather
- Sunny.
Thursday 20 December
- Winds
- East to southeasterly 15 to 20 knots becoming south to southwesterly 15 to 20 knots from about midday, then becoming southeasterly 15 to 20 knots in the evening. Winds may reach up to 25 knots during the mid to late afternoon.
- Seas
- 1 to 2 metres.
- Swell
- Southwesterly 1.5 to 2 metres.
- Weather
- Sunny.
Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Wind warnings are issued for today and tomorrow and describe the highest category of wind warning for that day.
Nearby Coastal Waters
- This forecast is also available via scheduled broadcasts on marine radio.
- Latest Coastal Observations
- Tide Predictions
- Marine Knowledge Centre - explanations and definitions
The next routine forecast will be issued at 4:00 am WST Tuesday.
Product IDW11280