Porto Alegre's climate is characterized by mild winters and warm summers. The city experiences a cool winter period from May to July, with temperatures ranging from just above freezing to around 28°C, averaging around 13-15°C. Autumn brings slightly warmer temperatures, reaching highs of up to 35°C in September and October. Spring is similar to autumn, but with cooler temperatures, peaking at around 35°C in November. Summer is the warmest period, with temperatures often soaring above 30°C from December to February, averaging around 23-25°C during these months.