Jyväskylä is the principal city of Central Finland and is surrounded by hilly, forested terrain. Finland’s second largest lake, Päijänne, has an influence on the climate in the Jyväskylä Region.
Jyväskylä has four distinct seasons. Summers are warm and winters cold and snowy. Spring and autumn are relatively long, providing a gradual transition to the next season. Winter generally starts in November, spring arrives at the beginning of April, summer at the end of May, while the first signs of autumn appear in early September.