nullabor in late march

Hay Ross, This brings back memories, I road from Perth to Victoria in Dec. '79 on a Kawasaki z1000 and a female friend rode a Yamaha sr500. It was cool in the mornings and warm in the afternoons. Google "Nullarbor, SA - Daily Weather Observations", the weather looks great in March. The breeze does come off the Southern Ocean, but if your into bikes you'll have the right gear, including a woollen seat cover, it's a long way on a bike, but worth it.

Hi Ross, I regularly cross the Nullabor and ride bikes. You may think its warm if your from Tassie and there can be strong winds but it's only for a few day's from the more civilised areas in S.A. or W.A. and it won't kill you, what may kill you is the crappy food along the way. Just pull over regular to have water/stay hydrated or wear a camel back.
Leathers will be hot but you may have the synthetic type with air flow areas ?
Maybe stop for a couple of hours in the middle of the day at a roadhouse to rehydrate. Just don't do what is seen regularly and ride with just a t-shirt on getting wind and sun burnt.
If you do plan to leave early, check the road before you pull up the night previously for how much roo is spread all over the bitumen and in some areas leave a coffee or so after sunrise so you have less chance of one in the side of the bike in the hours before sunrise, has happened to me but I stayed upright, that wakes you up.
If you plan the trip into smaller sections instead of trying to do 1200-1500 in a day you can get into the accommodation around two each day if you push through midday giving you a good rest and rehydration for the next day.
Enjoy it, it's not that bad and you are a bike rider aren't you ?.

Hi Ross, sounds all good with your gear, glad your not one of the t-shirt idiots. Have done a climate data search on BOM for ya, wind and temps at Nullarbor, Eucla did not have the detail but you can check out different areas along the way from this page.
Looks like the worst bit will be going there into the wind but I have found if you watch the weather coming across from the West, and you can leave when you want, you can ride with some wind from behind you when a low is coming, helps a bit.

http://www.bom.gov.au/climate/averages/tables/cw_018106.shtml

As they don't seem to make the fuel tanks big enough for West Ozzies, you may want to take a 5 or 10 litre fuel container in case your punching into strong winds all day, either that or you may have to sit on a lower speed which can induce fatigue and then have caravaners and road trains trying to go around you.
Watch for the birds feeding on carcasses, they hurt a bit when they hit you in the chest. Have a good trip catching up with your mates.
Ride to Live, Live to Ride.
brett