The transition from the cold, dry winter to the warm, wet summer occurs rather quickly between April and early May, and there is a similarly abrupt return to winter conditions in late October and November. Summers are generally hot and humid, with the East Asian monsoon taking place from June until September; these are also the hottest months, with average temperatures of , and daytime highs often above . Although largely transitional seasons, spring and autumn experience more pleasant weather, with average high temperatures ranging from  in May and  in September, coupled with relatively clear, sunny skies.