Korea has four seasons, a wet monsoon/summer season in the middle of the year, and a cold winter from November to March. The island of Jeju off the southern coast is the warmest and wettest part of the country.
The ideal time to visit Korea is during the autumn months (September-November). During this time, the country experiences warm, sunny weather, spectacular foliage and skies that are cobalt blue. Winters are cold and dry and are a good time to visit if you are interested in winter sports. Spring (April-May) is also beautiful with cherry blossoms in full bloom. However, this period can be very busy so you’ll need to book in advance to ensure accommodation is available. The summer months are muggy and hot, and can get a little crowded. It is also when the monsoon season begins so many activities are subject to the fluctuations of heavy rain.