I'm just back of a trip on peruvian northshore and there are very good spots if you are a waverider. Lobitos is the most famous here but there are Cabo Blancillo, Tres Cruces, Baterias and Mancora (only with big swell). It's safe too to learn on North of Peru, Mancora Point and Los Organos are very safe and better for freestyle
And in December there's no problem with wind I think
I did trips with Wild K school, french owner, and He's got a 4wd, perfect to do some trips, and I didn't travel with my board, and I could rent one in his school
Very cool guy
Have fun in Peru.