Camerons Corner/Strezlecki in Dec bad idea?

Unless you (and family ?) can handle the heat, it will be uncomfortable in general, and yes, if you broke down and no decent comms, it could be dangerous as few vehicles travel some of the roads.
Even the Flinders will be fairly hot in general . . . but of course you CAN sometimes strike it lucky with an unseasonally cool spell.

Yes, coastal regions will be cooler, unless you have one of those opposite unseasonally hot periods . . . you are just lucky or unlucky !!

Where are you coming from Adelaide or other location ?

The best place for cooler Xmas / New Year type trips is down the SE Limestone Coast, but then it can be very busy down that way, especially Beachport - Robe.
Canunda might be quieter, and there are a few campgrounds down that way in the Nat Pk.

Check out the Trek Note Corner Country and note that it is the hottest and wettest time of the year. As most of the roads are dirt you risk bogging and road closures if there is rain.

Leave the trip till the cooler months,
It will be a lot more enjoyable than 40 degree days.
But in saying that whenever you go it will be a fantastic trip.

Just my opinion

Cheers

Everywhere will be hot mate. It's Australian summer!

If temps are an issue, go south as far as you can.Eyre Peninsular and Port Lincoln in SA. Go to the tourist info centre in Port Lincoln and book one of five special sites down the bottom of the Port Lincoln NP. If you're lucky there will only be 8 other people there (4 couples). Cross the Nullabor and visit southwest WA. Heaps of places. Or go to Victoria. Or southern NSW but not inland. Plenty of options that are hard to get to in the Great Dividing Range, Snowies and Vic High Country - maybe not "remote" but not many people.

Cheers

Great country up there - and close enough to the Cooper and Innamincka to make it worthwhile..... but December ?....bad idea.

I've done that part of the world in December/January. I probably wouldn't volunteer to do it again. We planned to do Brisbane, eulo, hunger ford, wanaaring, corner, merty, innamincka, Thargomindah and back to Brisbane over an 8 day period. We literally did it in 3.5 days. It was so dam hot and the days so long, we just kept on driving. Washing in the tank water at fort grey at 1000 at night did not necessitate a towel because you are pretty much instantly dry. If you want a completely out there experience, and understand you are literally taking your life in your own hands then there pretty much aren't too many words to describe it. leave the wife, kids and anyone who hasn't slept real rough behind. I have hand mixed concrete slabs in the gulf at Christmas etc so I thought I knew what hot was - wrong ;)

Strzelecki Track, 11th November 2009, 50c and blowing 30kts.
I would not liked to have had to change a wheel, let alone anything more serious.

Cheers,
Peter
OKA196 Motorhome

The main problem is sleeping at night because it is just too hot. Your best options at that time of year are the coast or the high country. There are less people in the high country.

Its not just the heat that make it uncomfortable, the flies make it nearly unbearable.
Travelled up that way to Innaminka in February a few years back. You learn to keep your mouth shut and only eat inside a tent or after dark.

Having worked in the gas fields not far from Cameron Corner I can tell you that you don't want to be there from November to end of February. At least I had an air-conditioned donga to sleep in.

We have been in the (area) twice, and i reckon from late July, to mid Sept , at the latest, is the best time of the year to be there. Great big area to explore, but as others have said, excess heat will make it no where near as much fun, and can even be dangerous.

Been that way twice before in December.
Innamincka is OK - camp by the water, cool off in the shade of the trees and spend the afternoons at the pub.
Give everywhere else a miss. The heat, the wind, the flies make it pretty average.

Terrible country in summer! At best you would be confined to the air- conditioned vehicle, at worst exposed to dangerously hot and dry conditions.
Go south and/or up a mountain in summer where at least conditions won't be so extremely hot. Have you considered the high country around Thredbo? Or what about the Nullarbor? There are some good trips off the Eyre Highway with a good chance of more reasonable weather. Lynne