SeasonScore
Incheon, South Korea
Photo: G43 · CC BY-SA 3.0

South Korea

Incheon in May

🌷 Spring

Pleasant and some showers.

Best months: Oct (8.9), May (8.8), Jun (8.5)

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Why May scores 8.8What goes into the score

How it works
🌡️ 22° / 13°C🌧️ 96 mm💧 dew pt 11°🍃 PM2.5 29
  • Weather comfort50%9.2
    • ✓Comfortable temperatures (22°C highs / 13°C lows)
    • ✓Comfortable humidity (dew point 10.9°C)
    • ✓Mostly dry (~96 mm rain)
  • Air quality20%6.4
    • !Elevated (PM2.5 ~29 µg/m³)
  • Seasonal hazards20%10.0
    • ·No notable seasonal hazards
  • Safety baseline10%9.0
    • ·Normal precautions
Compare monthsPut May side by side with another month
MayOct
Score8.8 Excellent8.9 Excellent
Season🌷 Spring🍂 Autumn
High / low22° / 13°20° / 11°
Rain96 mm51 mm
Humiditydew pt 11°dew pt 10°
PM2.529 µg/m³19 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Incheon weather-station normals. Rainfall: Incheon weather-station normals (national met service).

Holidays & crowdsMay 2027

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • Labor Day 1–3 May · 3 days off in a row

Other public holidays: Children's Day (5 May) · Buddha's Birthday (13 May)

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Incheon

  • Cherry blossomTypical dates
    First blooms ~12 Apr, full bloom about a week later

    Typical first-bloom date at the Incheon weather-station tree (KMA 1991–2020 normal). In 2025 the first blooms came on 11 Apr; recent years have mostly been earlier than the normal. Weather i and KMA publish the next year's outlook in late February.

    Source: Weather i 2026 cherry blossom outlook (KMA normals and 2025 dates)

  • Snowy daysTypical dates
    Snow likely Nov–Mar (most in Jan: ~7 days)

    Average number of days with snowfall at Incheon.

    Source: Incheon weather-station normals (national weather service, via Wikipedia climate table)

Explore IncheonEvents, sights, food & souvenirs

Check event dates locally

A port city west of Seoul, home to South Korea's main international airport, a historic Chinatown, the modern Songdo district and nearby islands.

Events in May

No major events on our calendar for May.

Coming up later

Incheon Pentaport Rock FestivalDate variesUsually early August

One of Korea's largest rock and alternative music festivals.

Why go: Hot and humid; bring rain gear and sun protection.

Where: Songdo Moonlight Festival Park

ChuseokDate variesLunar calendar - usually September or early October

The harvest festival, when families gather and visit ancestral graves.

Why go: Expect heavy traffic and airport crowds; some shops close.

Where: Nationwide

Seollal (Lunar New Year)Date variesLunar calendar - late January to mid-February, date moves each year

A major family holiday when many Koreans travel home.

Why go: Incheon Airport is extremely busy over the holiday.

Where: Nationwide