Curitiba weather in September

Forum posters generally rate October as one of the best months in Brazil weather-wise, marking the start of spring, though posters flag it can still bring real rain during this seasonal transition. Posters describe Curitiba specifically as running noticeably colder than São Paulo, with one discussion citing conditions near 0C possible even outside the deepest part of winter, and forecasts elsewhere in the 10-19C range typical for the shoulder season. Given the limited destination-specific detail for October exactly, this note leans on that broader pattern: Curitiba's high-elevation, southern setting keeps it consistently cooler than most other major Brazilian cities, and October should trend mild rather than warm here even as much of the rest of the country moves into spring. Posters generally rate October as a cool, transitional month for Curitiba, layers still recommended.

Forum posters describe Curitiba's climate as distinctly cool for a Brazilian city, a direct result of its high elevation - one visitor specifically contrasted needing cold-weather clothes in Curitiba while nearby lower-elevation Morretes, just down the mountain, felt properly hot and muggy on the same day. April sits within the city's cooler autumn stretch, comfortable for walking the extensive park system without Brazil's more typical heat and humidity. Posters consistently name the French-inspired Botanical Garden (with its art nouveau greenhouse) and Parque Barigui as the standout April outings, well suited to the mild, temperate conditions this elevation provides.