Today's stage sees the peloton down in wine country. And it's definitely the coolest temperatures experienced so far. Here's what senior meteorologist weatherzone had to say:
South-southwestely winds of 15-30m/h with gusts of 40-50km/h and a temperature range of 18-to-24 degrees.
Cyclists will find the wind speed quite varied due to change in bush density along the route. It will be as calm as 15km/h and as windy as 50km/h.
They will experience sudden fresh gusts of 40-50km/h at times as they cycle through areas of thinner bush. In sections this will be a cross wind, making positioning in the peloton and smaller groups important. Most of the time this will be a tail wind, hence much of an issue.
A cross-to-head wind for the climb to the King of the Mountain (altitude 450 metres) between One Tree Hill and Kersbrook and for the undulating Williamstown-to-Birdwood section. Thankfully it is sheltered in places by thick bush, but stiff gusts of 40-50km/h are still likely.
The long up-and-down Birdwood-to-Angaston section will generally be a tail wind but the final few kilometres Angaston-to-Tanunda will be in a cross wind again.
It will be about 21 degrees for the start in Modbury (altitude 110 metres) and on some of the hills along the way. It will get as warm as 24 degrees at the finish in Tanunda (altitude 240 metres), but as cool as 18 degrees on the earliest higher hills between One Tree Hill and Kersbrook.