What to do in Seoul on a rainy day

Seoul's answer to rain is to go down or go big. Underground shopping arcades connect to subway stations, so you can move between them without surfacing. Above ground, the large national museums and galleries are built for crowds and bad weather, with cloakrooms, cafés and free or cheap permanent collections.

The picks below are ordered for a first wet day: start with one anchor near your hotel's subway line, add a market or spa in the afternoon, and keep the evening indoors. Prices are 2026 estimates; museums close one day a week, so confirm the day before you go.

Almost every pick sits within a few minutes of a subway exit, and several are linked to stations by covered or underground passages. That matters more than distance on a wet day: a 400 m walk in heavy rain feels longer than two stops on the train.

Use the subway rather than taxis at peak hours. Rain slows road traffic across the city, and demand for taxis spikes exactly when you want one. A T-money card works on the subway, buses and most taxis, and transfers between subway and bus are discounted within a time window.

If you are staying in Myeongdong, Hongdae or Gangnam, you can usually reach at least two of the picks above without walking more than a few minutes outdoors.

Seoul's summer rain arrives in bursts, and the heaviest cells often pass within an hour or two. Check a local radar app in the morning and again after lunch; a day that looks washed out at 09:00 can clear by 15:00. Build your plan around one indoor anchor so a break in the weather is a bonus, not a loss.

Dress for wet pavements rather than cold: waterproof shoes matter more than a heavy coat in summer. Convenience stores sell cheap umbrellas, and most museums and large stores have umbrella bags and lockers at the entrance. Keep electronics in a dry bag if you are carrying a camera.

Markets and street food stalls thin out in heavy rain, so treat them as a fair-weather option and move to a mall food hall or a spa instead. If you have children, museums with hands-on sections and large malls with play areas are the easiest wet-day anchors.

Seoul's wettest stretch is the summer monsoon, roughly late June into late July, when humid air brings heavy, frequent rain. August can bring typhoon-driven downpours, and September can still see the tail of the rainy season. Spring and autumn are drier and are the best months for a trip overall, though a wet day is possible in any month.

Winter rain is rare; the cold season is dry and clear, so a rainy-day plan matters most from June to September. If your trip falls in that window, keep one indoor day in reserve rather than scheduling every day outdoors.

For a first visit, spring (April to June) and autumn (September to November) give the best odds of dry weather, with the added bonus of cherry blossoms or autumn colour.