South of the equator, the seasons are the reverse of those in the northern hemisphere. Santiago’s year-round climate is often compared to that of southern California. During your travel season, daytime highs are typically in the 70s and low 80s. Nights are significantly cooler. From Santiago to the south, the climate evolves much like that of the coastline from San Francisco north to Alaska. Puerto Varas is almost the same latitude south as Portland, Oregon, is north. This is the gateway to the Chilean Lake District, and the whole area has a climate similar to that of Washington and Oregon. The region’s climate is changeable, cool, and wet.