Phu Tu Son experiences mild winters, with temperatures ranging from 7-25°C in January and gradually warming up throughout the year. Spring brings increasing heat, with March and April temperatures often reaching highs of 30-33°C. Summer is hot, with June to August averages consistently above 31°C, but not excessively so. Autumn sees a slight cooling trend, with September and October temperatures dropping back into the mid-twenties. Winters are cool again, with December temperatures typically ranging from 11-26°C.