Grantham Island Weather Forecast

Spencer Gulf Coastal Waters

Wind

South to southwesterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo during the afternoon and evening. Winds tending south to southeasterly in the evening.

Seas

Around 1 metre, increasing to 1 to 2 metres north of Cowell to Wallaroo.

1st Swell

South to southwesterly below 1 metre.

Weather

Clear.

Weather Situation

A high pressure system over the southeast of SA will drift over Victoria on Tuesday before establishing in the Tasman Sea. Meanwhile a broad trough will continue to linger over the far northeast. On Wednesday a new trough will push across the south and settle over the southern pastorals and the east. This trough will be pushed further inland as a southwesterly airstream establishes on Friday with a ridge establishing across the south.