Santiago's mild rainy season is July and August. Region II has little variation in its climate because it is close to the equator. A four-day forecast for Santiago may be useful in planning your trip. Clothing Chilean dress is similar to that of the United States. Business men customarily wear coats and ties.
Public officials tend to dress like business people.
Neither men nor women wear shorts in public. Jeans and informal attire are fine for touring and shopping. San Pedro de Atacama is a tourist attraction, and dress is always casual. Days are warm, and evenings are cool year round. Take clothing that will let you survive the freezing nights if your vehicle breaks down.