This is a mountain range in the sea with 21 peaks above 2,000m packed into less than 9,000 square kms - that's an area the size of Yorkshire! The density of peaks greater than 2,000m is 75% more than in the French Alps and there are 150 passable road Cols. This is not Majorca, where the highest peak rises to 1,445m, this is Corsica where Monte Cinto soars to 2,706m. It's alpine and consequently riding this time of year means you need to be prepared for a number of eventualities.
I experienced some 'variable' conditions during the first week of March. You can always ride the coast in Corsica and there are some 700 kms of paved roads available to you which unlike inland Corsica very rarely sees lying snow. Coastal temps during the winter range from 5-15˚c. This year my main challenge was the wind which blew all week and regularly gusted over storm force strength. Temps largely remained mild at the coast and peaked at a very pleasant 20˚c. Riding inland and consequently up into the hills requires a little more planning and layers but gives shelter from the worst of the wind. Check France Meteo for the forecast, layer up and Toe Thingy's on especially for the descents. The snow line varied during the week sinking as low as 600m but most of the time stayed above 1,000m. I tend to plan on the temps averaging half that at the coast but much chillier descending.
You do have the roads to yourself during the quiet months like March which is good because as my gallery shows there is some truly rewarding scenery to take in.