⚠️ I did not put any info about Visa, and simcard So please check about Visa information by yourself based on your nationality.

• Official K-ETA site : link
• Official Guide about Simcard : link

Weather & Outfit

• Summer in Korea is extremely hot and very HUMID (even after sunset), but at the same time indoor places will turn on the A/C very strong.
• Pack breathable, cool clothing, along with a light jacket or cardigan for indoors.
• This was a weather of Seoul in July, 2025.

Electricity

• The standard voltage in Korea is 220 volts at 60 Hertz, and the outlet has two round holes. (Reference : https://english.visitkorea.or.kr/svc/contents/contentsView.do?vcontsId=140041)
• Only free-voltage devices can be used with a simple plug adapter, so please double-check if your device supports 100-240V.

Cash & Card

Korea is almost completely a cashless society. In fact, it is illegal for registered businesses to refuse card payments. Even traditional markets and coin karaokes (Noraebang) accept cards now!

Rather than exchanging a large amount of cash into Korean Won, we highly recommend checking if your credit/debit card works internationally.

Actually, bringing too much cash can be a problem because many places (including city buses and trendy cafes) are "Card Only" and might not even have enough physical cash to give you change 😭.

• When do you actually need cash?
  • Very rare exceptions like valet parking tips or roadside street food stalls.

Culture & Etiquette

In Restaurants, Cafes

• There is NO tip culture in Korea.
• Every price is “tax included” price, which means it is a final price.
• To call the server, press the bell or shout “Jeogiyo(저기요)” or slightly raise your hand. (It is not rude)