sochi (russuan:со́чи) is a city in russia on the black sea coast. it is in the russian federal subject of krasnodar krai. the 2014 winter olympics and the 2014 winter paralympics were played there. the sochi olympic stadium will also be used to host 2018 fifa world cup football matches. sochi is also a popular health resort. it is one of very few places in russia with a humid subtropical climate ("cfa" in the köppen climate classification).