Incheon weather in March

March in Incheon: cold, a little rain — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Incheon🇰🇷 South Korea · Korea · City72
  1. 46Jan
  2. 54Feb
  3. 72Mar
  4. 81Apr
  5. 88May
  6. 82Jun
  7. 58Jul
  8. 56Aug
  9. 76Sep
  10. 84Oct
  11. 70Nov
  12. 51Dec

#6 of 12 months in Incheon · #849 of 1413 destinations to visit in March · comfort 72/100 (tier B)

Days
11°C
Nights
3°C
Wet days
6
Sun
9.1 h
Humidity
72%
Daylight
12 h
Incheon, South Korea
Photo: joon young, Park · Pexels

Traveller notes on Incheon in March

Other months in Incheon

Forum posters describe South Korea in November, Incheon included, as cool with crowds thinning noticeably compared to peak autumn-foliage season. Posters report daytime temperatures typically 8-10C early in the month, with nights already near or below freezing, and mid-November bringing a further drop, often into the 0-10C range, genuinely requiring winter clothing by that point. Posters are direct that November sits in an awkward seasonal gap - past the vivid autumn leaves but before any real snow - making it, in some posters' view, one of the less visually rewarding months, even though the cooler weather and lighter crowds have real appeal for beach areas and quieter sightseeing. Posters generally rate November as a workable but transitional month for Incheon, cool and crowd-free rather than scenically peak.
Tripadvisor community · November · 1 month ago · Read more on Tripadvisor ↗
Forum posters call May and June the best-weather stretch of the Korean year - warm days suited to short sleeves, with a thin layer still useful at night. The month itself shifts noticeably: early May can still want a light jacket or cardigan, while by month's end a t-shirt alone is usually enough. For Incheon specifically, posters point to Wolmido's theme park and traditional garden, the city's historic Chinatown (the oldest and largest in Korea), and Sorae Fish Market for fresh seafood and street food as the core things to do, with the Bupyeong underground market flagged as a particularly good option if a rainy day interrupts outdoor plans.
Tripadvisor community · May · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Incheon's card on the map.

Incheon climate normals — March

Daytime high11°C / 51°F🧥 cold
Nighttime low3°C / 37°F
Feels like (high)8°C / 46°F
Sea temperature6°C / 43°F🥶 cold sea
Rainfall38 mm / 1.5 in🌦 some rain
Rainy days6 days
Humidity72%💧 humid
Dew point-1°C / 31°F
Sunshine9.1 h/day
Daylight12 h
Wind18 km/h / 11 mph
Snowfall1.8 cm / 0.7 in
Air quality (US AQI)92🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Incheon in March

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Incheon's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherIncheon's best weather comes in May, June and October — separate windows, not one continuous season.

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Best weatherFair weatherToughest weather

What's on in Incheon in March

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Fine dust season

    1 Mar – 15 May · usually

    Incheon is the first thing the spring westerlies hit, so it reads worse than Seoul on the bad days. Watch the forecast rather than the sky — the haze looks like ordinary sea mist. Source ↗

What's on around the world in March →

Nearby, and something's on

Within 300 km of Incheon — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Incheon?

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Incheon in March — FAQ

Is March a good time to visit Incheon?
March in Incheon: cold, a little rain — a great time to visit. It ranks #6 of 12 months for Incheon on SeasonMap's comfort score (72/100).
What is the weather like in Incheon in March?
In March, Incheon averages a daily high of 10.7°C and a low of 3°C, with about 37.7 mm of rain over roughly 5.6 rainy days.
What is the air quality in Incheon in March?
Incheon has a mean US Air Quality Index of about 92 in March.
Does it snow in Incheon in March?
Incheon sees roughly 1.8 cm of snowfall in March.

Within 300 km: Seoul's Cherry blossom around 28 Mar – 15 Apr.