Winters in South Whittier are mild, with temperatures ranging from just above freezing to the mid-20s Celsius. Spring brings gradual warming, with April and May averaging around 17 degrees Celsius, marking a significant increase from the winter months. Summer is warm but not hot, with July and August experiencing highs around 35 degrees Celsius, while September sees a slight drop in temperature before the onset of autumn. Autumn temperatures are generally mild, ranging from 9 to 34 degrees Celsius, with November averaging just above 18 degrees Celsius.