Spring – March, April, May
With cool mornings and evenings, and sunny, warm days, spring is a great time to visit South Korea! The spring blooms make it a very popular time to visit, so be prepared for crowds. Make sure to bring comfortable sneakers and a denim jacket for cooler nights.
Temperature: 51°F to 74°F (10°C to 23°C)
Summer – June, July, August
Summer is the rainy season, and tends to be hot and very humid. This could be a good time to visit if you want to avoid big crowds, and don’t mind the heat. Make sure to pack a hat, an umbrella, and light layers for places with air conditioning.
Temperature: 81°F to 86°F (27°C to 30°C), though it often feels hotter.
Autumn – September, October, November
Autumn is an ideal time to visit South Korea, with more temperate weather than summer and winter, and less crowds than spring. It is cool and dry, with warm days perfect for seeing the beautiful changing leaves! cool, dry, beautiful changing leaves (50s to 60s, 40s in November). You can get away with wearing long sleeves and light sweaters during the day, but bring a heavier jacket and a scarf for the evenings.
Temperature: 53°F to 72°F (12°C to 22°C), but evening temperatures can dip to 40°F (4°C)
Winter – December, January, February
Winter in South Korea is cold and dry, with a lot of frost and the occasional snowfall. There are many winter activities available for those who visit in winter, like ice skating and skiing, but since many historic sites are outdoors, make sure to bring a coat that you can easily travel with, gloves, and a heavy scarf.
Temperature: 35°F to 40°F (2°C to 4°C), though temperatures can dip below freezing (32°F, or 0°C)