It is a no-no.
Jan can be better as there are sometimes long calms in Jan.
Find a quiet moment then motor
like hell. You will have harbours along the coast but avoid them in bad onshore weather
- many of them are on rivers.
is pretty accurate there - much data coming from stations further out West. yr.no, icm.edu, etc all good.
Take super duper clothing
- thermals and waterproofs; it may be cold; very, very cold at times.
Start the engine
often if going under sail - keep the engine
warm. They can be damn hard to start in those climes.