Sejong-si
Sejong-si is a STATE in South Korea, Asia.
Sejong-si, South Korea’s futuristic administrative capital, is a master‑planned smart city where government ministries, parks, and culture converge. Stroll through Sejong Lake Park to watch the mesmerizing musical fountain or rent a bike and ride over 400km of dedicated lanes, crisscrossing high‑rise government complexes and tranquil residential zones. The National Library, with its swooping lines, and the Robot Science Museum define the skyline, while the Hanok Village and ancient Gounsa Temple offer a serene counterpoint. Foodies can explore the local markets or sip a matcha latte in a high‑tech cafe. Weekends buzz with families enjoying free concerts and outdoor installations. Though quieter than Seoul, Sejong thrums with intellectual energy—a place where urban planning, green spaces, and Korean tradition meet. It’s an under‑the‑radar gem for travellers who love architecture, cycling, and the calm side of Korea.
Best time to visit Sejong-si
The best times are spring (April–early June) and autumn (mid‑September–October) when skies are clear and temperatures hover between 12–25°C. Cherry blossoms peak in early April around Lake Park, and autumn transforms the city into a palette of scarlet maples. Late March and November offer lighter crowds. Midsummer (July–August) is hot, muggy, and often rainy; winter (December–February) is cold but crisp, with occasional snow that makes the Government Complex photogenic. Avoid major Korean holidays like Chuseok (late September) as local crowds surge.
October
NowRight now
- Condition
- Overcast
- Temperature
- 15°
- Feels like
- 15°
- Humidity
- 90%
- Wind
- 7 km/h
- Precipitation
- 0 mm
Typical for October
- Weather
- Mild 9–20°C
Travel notes
- Crowds
- High
- Prices
- High
Brilliant foliage, best month
Weather from Open-Meteo
Know before you go
Getting there
Cheongju International Airport
International
35 km away
Incheon International Airport
International
150 km away
Daegu International Airport
International
120 km away
Gimpo International Airport
Domestic
160 km away
Getting around
Stay connected
WiFi speed
80 Mbps
Mobile data
Excellent
WiFi
Widely available including free public Wi‑Fi in urban areas
Local SIM
Local SIM or eSIM available at Incheon Airport from $5
Stay safe
Overall
9/10Sejong is one of South Korea's safest cities, with extremely low crime and well‑maintained public spaces.
Night safety
9/10Sejong is one of South Korea's safest cities, with extremely low crime and well‑maintained public spaces.
Transport
9/10Scam risk
8/10Entry and health
Health information
Culture
Local customs
Costs and practicals
Cost level
Meals
Hotels
Local transport
Cost notes
Timezone
Local time 22:53
More facts
Population
400,000
ISO code
KR-22
Frequently Asked Questions
Also known as: Sedzong, Sedżong, Sejong, Sejong Special Self-Governing City, Sezhon, Yeongi, se(ː).dʑon, se(ː).dʑoŋ, sejam, sejong, sejonga, sejoniግ, shi zong, syjwng, syjwngh, Сежон, سئجونگ, سيجونغ, سیجونگ, सेजोंग, সেজং, ਸੇਜੋਂਗ, ሴጆንግ, 世宗, 세종, 세종전통시장, Sejong Traditional Market, sejong jeontong si-jang

