Climate is much changeable because of surrounding territory and cold winter climate dominates in the area. Winter air temperatures average -25C, and summer temperatures average +20C. The lake surface freezes in September but completely covered by 1.0-1.5m thick ice in November and thaws in May.
The protection of natural resources in the area began with the establishment of National Park in 1992. An outstanding variety of endemic flora and fauna which is rich and various such as land-based species around the lake include marmot, wild sheep, ibex, red and roe deer, brown bear, Siberian moose, sable, wolf and fox. Unique fishes to the lake are omul salmon, graying, sturgeon, burbot and lenok. There are more than 244 bird species in the Khuvsgul area include eagles, kites, swans, cranes and wide variety of Anseriformes. There are dozens of tree species, including Siberian larch, cedar, pine, fir, birch and spruce.
Khuvsgul lake is the most outstanding example of a freshwater ecosystem on the basis of natural criteria as well as the landscape is breathtakingly beautiful during winter and summer.