| Category | March | April | May |
|---|---|---|---|
Weather | 5–14°C (41–57°F), cool mornings, early spring feel | 10–18°C (50–64°F), mild and easy for full days outside | 15–25°C (59–77°F), warmer, drier, and almost early summer |
Crowds | Moderate, rising late in the month | High, especially during blossom week and weekends | High, but more spread out across festivals and gardens |
Atmosphere | City waking up, first flowers, lighter tourist traffic | Cherry blossoms, picnic weather, palace walks, packed river parks | Lantern displays, rose gardens, long evenings, school-trip season |
Key events | Late-March blossom chasers start arriving | Yeouido blossom week, Seokchon bloom, palace spring programs | Buddha’s Birthday events, Seoul Jazz Festival, riverside flower spots |
Public holidays | Independence Movement Day on Mar 1 | No major national holiday pressure in most years | Children’s Day on May 5, Buddha’s Birthday on May 24, 2026 |
Budget | Better hotel rates except late month | Higher around Apr 1–12 near central and blossom-heavy districts | Still elevated, especially around holiday weekends |
Best for | Shoulder-season travelers, early spring walkers | First-time visitors, photographers, couples, palace-and-park days | Festival fans, longer outdoor days, garden lovers |
Book early? | Late-March stays and blossom-linked trips | Yes, especially hotels, day tours, and sunset attractions | Yes, especially holiday-period attractions and performances |
Transport tips | Smooth except late-March blossom areas | Use subway for Yeouido and Jamsil; roads clog near festivals | Plan around holiday traffic and busy family attraction zones |
| Lead time | What to book | Why & when | Seasonal price change |
|---|---|---|---|
2–4 months ahead | Central hotels in Myeongdong, Jongno, Hongdae, or Jamsil | Book for Apr 1–12 if you want blossom-week convenience near major sights | Apr 1–12: +20–40% vs later April weekdays |
3–6 weeks ahead | DMZ Half-Day Tour | Weekend and holiday-adjacent departures fill first; passports required and schedules are fixed | Weekend departures: +10–20% vs quieter midweek demand patterns |
2–4 weeks ahead | N Seoul Tower Observatory with Namsan Cable Car Round-trip Tickets | Sunset and clear-weather slots go first during blossom season | Sunset slots and weekends: +10–15% vs weekday daytime |
1–2 weeks ahead | Nami Island Nature Exploration Day Tour with Garden of Morning Calm | April greenery and blossom-linked stops drive early sell-outs on Saturdays and Sundays | Weekend spring day trips: +10–20% vs weekday departures |
1–2 weeks ahead | NANTA Musical Show in Myeongdong Tickets | Evening shows are easy add-ons after outdoor sightseeing, especially on wet days | VIP and weekend evening seats: +5–10% vs standard weekday seats |
5–10 days ahead | Lotte World Theme Park Tickets | Jamsil gets busy around the lake during peak bloom and on school-trip days | Blossom-week and weekend demand: +5–15% vs later-April weekdays |
2–5 days ahead | Jamsil Han River E-land Ferry Cruise | April marks the return of peak riverside evenings and fountain-show demand | Weekend sunset and music cruises: +10–15% vs daytime weekday sailings |
1–3 days ahead | AREX: One-Way & Round Trip Train Transfers Between Incheon Airport & Seoul Station | Good to lock in before arrival, especially on long-haul spring weekends | Usually stable; airport transfer pricing rarely spikes sharply |
