 It will usually get cooler as one ascends the mountain.The average temperature of Nikkō is around 7 °C (44 °F) with the warmest months reaching only about 22 °C (72 °F) and the coldest reaching down to about −8 °C (17 °F).Nikkō experiences a humid continental climate (Köppen climate classification "Dfb") with cold, snowy winters and predominantly mild, very wet summers.