Providencia in August

October through March gives you the best weather and longest days. December and January bring summer heat that makes rooftop bars actually enjoyable instead of windswept endurance tests. But here's the catch - Santiago empties out during February as locals flee to the coast. Many restaurants close or reduce hours. April and May offer shoulder season perks: fewer crowds, mild weather, and autumn colors in nearby parks. Winter (June-August) means smog and cold, but indoor venues stay lively. Business travelers should avoid the two weeks around Christmas and New Year when the city essentially shuts down.