Lake Onega is relatively cold, with temperatures below for half of the year and average summer temperatures of about . The catchment area of drains into the lake via 58 rivers and more than 110 tributaries, including the Shuya, Suna, Vodla, Vytegra and Andoma. The only outgoing River Svir, which marks the southern boundary of Karelia, runs from the southwestern shore of Lake Onega to Lake Ladoga and continues as the Neva River to the Gulf of Finland. The White Sea–Baltic Canal runs through the lake from the White Sea to the Baltic Sea. The Volga–Baltic Waterway connects Onega Lake with the
Primorsky District, Arkhangelsk Oblast in Plesetsky District. There are many roads around Arkhangelsk. The Northern Dvina is navigable, and there is regular passenger navigation upstream from Arkhangelsk. There is also regular, albeit infrequent, sea passenger navigation connecting Arkhangelsk with the settlements on the Onega Peninsula (including Pertominsk, Lopshenga, and Letnyaya Zolotitsa) which are not connected to the all-season road network. Arkhangelsk also has air connections with these settlements, as well as with Solovetsky Islands. There are two state museums in the district. The Malye Korely Open Air Museum is located approximately south of Arkhangelsk. It was created to protect the oeuvres of the Russian