PlanoPlanoApril to May and September to October offer the best weather and most beautiful seasonal colours. April brings cherry blossoms, while October delivers vivid autumn foliage across palace grounds. May is the most consistently pleasant month.
| Month | Temp | Rain | Crowds | Prices |
|---|---|---|---|---|
| January | -2°C | 20mm | Low | Budget |
| February | 0°C | 25mm | Low | Budget |
| March | 6°C | 40mm | Medium | Moderate |
| AprilBest | 13°C | 55mm | High | Moderate |
| MayBest | 18°C | 100mm | High | Moderate |
| June | 23°C | 130mm | Medium | Moderate |
| July | 25°C | 370mm | Medium | Moderate |
| August | 26°C | 290mm | Medium | Moderate |
| SeptemberBest | 21°C | 135mm | Medium | Moderate |
| OctoberBest | 14°C | 50mm | High | Moderate |
| November | 7°C | 50mm | Medium | Moderate |
| December | 0°C | 20mm | Low | Budget |
Cherry blossoms appear in early April, transforming Yeouido and Namsan Tower areas. Temperatures climb from 6°C to 18°C. May is Seoul's most pleasant month with warm days and cool nights.
Hot and humid (23-26°C) with heavy monsoon rains in July-August. The city's AC-cooled palaces, K-pop culture, and indoor markets provide excellent rainy-day activities.
September and October bring stunning autumn foliage across palace grounds and Bukhansan National Park. Clear skies, moderate temperatures (14-21°C), and Chuseok celebrations make it magical.
Very cold (-2 to 7°C) with occasional snow. The city's indoor culture — jjimjilbangs, shopping malls, restaurant scene — thrives. Ski resorts near Seoul are accessible.
April
September
November
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Plan my Seoul tripApril (cherry blossoms), October (autumn foliage), and Chuseok holiday period are the busiest times. K-pop concerts and events also create demand spikes throughout the year.
December through February is the cheapest period, though temperatures drop below freezing. June (early monsoon) also offers lower prices.
April, May, September, and October offer the best conditions for hiking Bukhansan, exploring palace grounds, and walking through traditional hanok villages.