Climate: There are two seasons: a dry season, running from May through September and a rainy season, between October and April. Although, it is only in January that the real rain starts, January and February are the wettest months. As a rule, it showers in the evening. In the Andes, the weather tends to be unstable and unpredictable. In high altitude areas, it can be chilly. At night, temperatures may drop below freezing point. By day, temperatures are around 20 degrees.
Best time to visit: The best time to visit is from May through October. It’s true that temperatures are lower during this period, however showers are sparse. In the mountain areas you should count on brief showers occurring throughout the year.