Going down that side to Pto Montt will either be fairly hard work
along the coast...mainly day sailing
as the sea breezes blow parallel to the coast and can really crank up. Going offshore
also hard work
on 30 days or so from Easter Island... I've known boats to take 40.
I've only been up as far as Iquique along the Chilean coast...canceled my trip to Peru as just all too difficult re fees
and nonsense from agents...
Good info here about the coast from Peru down to the Horn and up the other side... once you get past the food
Atlantic side? Havent been up to Brazil
but twice up ( April and May ), twice down ( April and October) from Rio de la Plata to the south. Definately an austral summer trip if going south.
quite reasonable but it had its moments on two of the trips.
Would skip BA and go to Colonia instead, take a fast ferry
across from there.
If you must do the Horn go to Pto Williams first, wait there for a weather
window then day sail it.....