What to Wear: Gangwon-do belongs to the temperate zone, which is characterized by four distinct seasons. The average annual temperature in Seoul is 12.9 C. However, it has a wide annual temperature range, with the highest temperature in summer reaching 36.1 C, and the lowest temperature in winter falling to -13.7; finding suitable clothes for the weather is important for a trip to Gangwon-do. For current weather conditions, check out.
The fresh spring air blows in early to our seaside city. At the end of March or April the early forsythias and azaleas begin popping up, quickly followed by an eruption of spring blossoms. Pack light clothing along with a few sweaters for good measure.
During the summer, Gangwon-do falls under the influence of the high-pressure air masses that develop over the Northern Pacific Ocean, and the weather turns hot and humid, with the mean temperature from June to September reaching 20 C. During mid-summer, the temperature often hovers above 30 C. Also About 70 percent of the annual rainfall falls from June to September, and we have monsoon season usually in July or August. It is best to pack shorts, cotton tee shirts, and thin cotton pants, and bring waterproof clothing and an umbrella if you are visiting Gangwon-do in July or August.
Autumn in Gangwon-do is cool with summer-like weather often stretching into the end of September. By October, the air turns crisper in the mornings and the leaves have started to change colors, but are dry. The evenings are a bit cooler so it's best to pack a light jacket and sweater along with some light shirts.
During the winter months, the mean temperature is lower than in other regions located on the same latitude, due to the expansion of high-pressure air masses formed over inland Siberia. These strong northwesterly winds bring dry, cold air into Korea. Notably, the winter climate follows a predictable cycle of three cold days followed by four warm ones due to the rise and fall of the high-pressure air masses. To stay warm, very warm clothes are always a good idea.