Taiwan enjoys an oceanic, subtropical monsoon climate. The warm and humid summer lasts from May until September, the mild winter from December until February. The average lowland temperature in January is 16°c (61°f) in the north and 20°c (68°f) in the south; the average July temperature is 28°c (82°f) in both the north and south. The average rainfall is 257 cm (101 in), ranging from 127 cm (50 in) at the middle of the western coast to 635 cm (250 in) and more on exposed mountain slopes.