About Wonju, Gangwon do's Climate & Weather History

With a population of around 333,000, Wonju sits in Gangwon-do, South Korea. The city operates in the Korea Standard Time zone.

In 2025, Wonju recorded an average annual temperature of 54°F. The hottest temperatures reached 97°F in July; the coolest were 3°F in February. Total precipitation for the year was 50 inches, with the wettest month being September. Snowfall for the year totaled approximately 7 inches.