Lastarria in December

March through May delivers Lastarria's golden season. The summer crowds thin out, but temperatures still hit a comfortable 75°F during the day. The jacaranda trees bloom purple along the streets, and outdoor cafe seating stays pleasant through sunset. September through November works equally well. Spring brings longer days and fewer tourists, though you'll catch the occasional rain shower. Pack a light jacket for evenings - temperatures can drop to 45°F after dark. Winter (June through August) isn't terrible if you don't mind shorter days and the occasional drizzle. Many cafes move their seating indoors, but the museums and galleries stay cozy. Hotel rates drop by about 30% during these months. Summer (December through February) brings heat and crowds. Temperatures can spike above 85°F, and the narrow streets trap the warmth. But this is when the neighborhood's nightlife peaks, with street festivals and late-night concerts spilling into the plazas.