do I need waterproof jacket & pants in September???
Traveling to Arequipa, Cusco, Lake Titicaca for 2 weeks in early September; no overnight treks planned. I usually bring a waterproof jacket and pants when I travel, but it seems the likelihood of rain is very low. Current plan is to pack a merino base layer, a cashmere sweater and Patagonia nano-puff for warmth & wind; plus an emergency poncho for the unexpected, unseasonable rain. Any advice is appreciated.