Best Times to Visit Seoul
The best times to visit Seoul are from March to May and from September to November, when the weather is mild (average daily high temperatures stay below the mid-70s) and travel expenses are low. If you're a powder hound, you'll want to visit between December and February, when average daytime temperatures stay around the freezing mark and snow can be frequent. It's best to avoid the summer months, also known as monsoon season. During these months, Seoul is uncomfortably humid and full of tourists. What's more, hotel room costs are at fever pitch.
Weather in Seoul
Data sourced from the National Climatic Data Center
Springtime is arguably Seoul's most beautiful season. The city erupts with budding trees and blooming flowers, including cherry blossoms. The weather is also quite lovely, with high temperatures hovering between 50 and 75 degrees (though you might want to pack a jacket for evenings). Hotel and plane ticket prices are also at their most manageable; however, it's still a good idea to book early. Even though the crowds aren't as thick as the summer season, Seoul's many springtime visitors can limit your lodging options.
If you don't mind oppressive humidity, long lines, torrential downpours and high travel costs, then come to Seoul in the summertime. But for a more comfortable vacation, opt for a sweet shoulder season (spring or fall). Should you decide to plan a trip for this time of year, be sure to check out the vibrant festivals taking place in Seoul during July and August.
Seoul experiences pleasant weather in fall: Daily highs stay in the mid-50s and mid-70s, though you may experience some rain here and there. Autumn airfare and hotel prices are also more affordable compared to summer rates, and the thinning crowds mean shorter lines at major attractions. During Chuseok (a public holiday in South Korea), keep in mind that travel could become busier and rates are likely to spike, as the holiday is considered as big as Lunar New Year (the country's biggest holiday).
Though winter in Seoul is quite chilly – temperatures hover between the 20s and 30s – the cold weather does welcome plenty of opportunities to ski in the mountainous areas near Seoul. Plus, as the temps drop, hotels prices and airfare do, too. You may have to pack some heavy coats and sweaters for a wintertime trip to Seoul, but it'll be lighter on your pocketbook. However, be sure to avoid Lunar New Year. During this time, travel becomes expensive and congested with families traveling to their hometowns to celebrate.
Popular Times to Visit Seoul
Tourism volume is estimated based on in-market destination search query interest from Google and on travel.usnews.com in 2015-2016. Hotel prices are sourced from a sample of U.S. News Best Hotels rates through 2015-2016.
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