 The Sea of Okhotsk ensures that Sakhalin has a cold and humid climate, ranging from humid continental (Köppen "Dfb") in the south to subarctic ("Dfc") in the centre and north.The maritime influence makes summers much cooler than in similar-latitude inland cities such as Harbin or Irkutsk, but makes the winters much snowier and a few degrees warmer than in interior East Asian cities at the same latitude.Summers are foggy with little sunshine.