In Sao Borja, Brazil, the warmest season is summer, which begins in January and February with average temperatures around 25°C. As March approaches, temperatures start to drop slightly, averaging 24°C, but still pleasant for outdoor activities. Autumn brings a noticeable cool-down, with April and May temperatures ranging from 9-33°C and 4-33°C respectively, signaling the end of warm weather. Winter months, June to August, are quite chilly, with average temperatures around 14°C, while September marks the start of spring, bringing temperatures back up to 20°C, gradually warming up towards summer.