I'm in the process of planning a trip to the Cordillera Blanca, and I was wondering what the weather on the mountains would be like. I'm planning on climbing Urus, Ishinca and Tocllaraju. How cold will it get?
Not particularly cold. On Toc, if you run hot, a 20 degree F down bag will work at night if you wear your puffy in your bag. A zero degree F bag is what you really want though. Top of the line boots for sure Spantik/Baruntse/Other and a variety of gloves and a good puffy jacket. Night time with a cold front will be in the teens or lower. When the sun comes up you can climb comfortably in a softshell with 1-2 layers beneath