Santa Rosa, Brazil experiences a subtropical climate with distinct seasons. Winters are mild and cool, with temperatures ranging from -2C to 28C in July, making it the coolest month of the year. As spring approaches in September, temperatures rise gradually, averaging around 19C, but still relatively mild. Summer is hot and humid, with temperatures soaring up to 39C in December, marking the warmest time of the year. Autumn brings a slight drop in temperature, averaging around 20C, but remains pleasant overall.