Port Arthur Weather Forecast

Gulf St Vincent Coastal Waters

Wind

Southerly 15 to 20 knots, reaching up to 25 knots near the Yorke Peninsula coast during the afternoon and evening.

Seas

1.5 to 2 metres.

1st Swell

West to southwesterly below 0.5 metres.

Weather

Clear.

Weather Situation

A ridge of high pressure persists over southern parts of SA. A trough of low pressure extends across the pastoral districts and into the eastern states. The trough will move into the far northeast on Monday as the high centre moves into the Bight. Most of the state will be dominated by the ridge of high pressure on Tuesday, as the high centre moves into the Tasman Sea. Another trough of low pressure enters from the west on Tuesday and extends east on Wednesday, as cold front moves over the south on Wednesday. The trough moves northeastwards on Thursday as a new ridge of high pressure extends from the west.