Seoul October — autumn foliage at Changdeokgung Secret Garden

Best time to visit Seoul for good weather

When is the best weather in Seoul? Monthly breakdown of temperature, rainfall, and sunshine hours — ranked by what actually matters for your trip.

Best month

October

Seoul at its most spectacular — autumn foliage rivals cherry blossom for sheer beauty.

Namsan, Bukhansan, and Changdeokgung Secret Garden in peak foliage: deep reds and golds

18°C: ideal hiking weather for the national parks surrounding the city

Seoul Lantern Festival on Cheonggyecheon stream: one of the most atmospheric events of the year

All months ranked — Good weather

Other priorities for Seoul

Good weather in other destinations

Scores are directional — designed to compare months within Seoul, not to make precise claims. Full methodology →