Willem replied:

Rob


You might have to go to the BOM site(Bureau of Meteorology) to get a difinitive answer.


My observations:

Basically the southern latitudes get the westerlies all year round. Towards December the winds change with north east to northwest winds blowing from the Kimberley region and from Queensland causing rain patterns and heat to central and southern parts of the continent.

In April at the start of the tropical 'Dry' season the inland winds change to blowing from a south easterly direction.

So if you were to leave from say Sydney or anywhere on the east coast for that matter I would tend to go north first via the tropics and then east along the Nullarbor on the way back from WA.

This also the shorter route around the island....lol


Cheers

Member - Mick O (VIC) replied:

I did the trip round the block in 2006 travelling north up the WA coast. There were only a few hardy soles travelling up the WA coast from the south that were towing vans. The winds were quite often so strong that we weren't able to get much past 80-90 kph and we were only towing a camper trailer. Your suggested direction of travel is the best. Cheers Mick.

Richard W (NSW) replied:

Rob,

Did the bottom half of WA in 2007 clockwise June/July and back home via the Tamami and top half this year June/July anticlockwise and home via Duncan/Bucanan.

Weather across the bottom was wet all the way until about Shark Bay. Across the top we had no rain at all apart from about 6 drops one night.

If doing the whole trip in one go would probably go anti clockwise.