South Korea is one of the most popular tourist destinations in Asia, attracting visitors with its beautiful landscapes and delicious cuisine.If you are planning to travel to this country, the first thing you should do is to learn about the weather and know the best time to visit South Korea. Surely it will help to plan your trip better! Weather in South KoreaSouth Korea has a temperate climate with four distinct seasons.Spring and autumn are pleasant with cool temperatures. Korea’s summer, on the other hand, can be unbearably muggy, hot, and wet. The winters are freezing, dry, and mostly clear. South Korean weather in the springIn South Korea, spring gradually moves from south to north. In Gyeongju and Jinhae, you can enjoy the famous Cherry Blossom Marathon and Gunhangje Festival.Spring lasts from March to May. In this season, the weather is cool, pleasant, sometimes sunny. South Korean weather in the summerSummer in Korea is from June to August, with relatively hot and humid weather. The average temperature is about 25.4 degrees Celsius, but it can reach 38°C. Near the end of June, South Korea is affected by the East wind from Asia that brings moisture, causing rain.The rainy session in South Korea is from late June to the end of August. During this time, the temperatures and humidity both rise, so it can be uncomfortable and affect your travel plans. By August, Korea will have storms, which can cause heavy rain.South Korean weather in the autumnSouth Korea’s autumn is from September to November. The average temperature ranges from 11-19 degrees Celsius. The sky is blue, cool, and the atmosphere is incredibly pleasant.One point to note is that the autumn weather has a large temperature difference between day and night. Daytime temperatures can go up to 25°C, and nights can drop down to 10°C. South Korean weather in the winterWinter in South Korea is from December to February. The average temperature is about -5°C, and the lowest can be -15°C, and there’s snow. See alsoAsia Travel GuideHo Chi Minh To Siem Reap: Transport & Ticket GuideWinter is a great time to visit if you’re into winter sports or enjoy snowy days. Best time to visit South KoreaThe best time to visit South Korea is from April to June (spring) and September to November (autumn).In spring and autumn, the weather is pleasant with mild temperatures and less rain. Also, you can join several festivals and enjoy the beautiful scenery. When not to visit South KoreaI recommend not to visit South Korea during the monsoon season. From early July to late August has more than half of the country’s annual rain.