South Korea Seoul Weather in March — Climate Guide
March in Seoul is Average
March is Average for Seoul.
March is Seoul's transition from winter to spring. Early March still has winter chill (8-12°C / 46-54°F daytime) and worst-of-year fine dust pollution. Late March warms up to 14-17°C / 57-63°F as spring blossoms emerge.
Fine dust (mihaedi) pollution from Chinese desert sandstorms peaks early-to-mid March. Air Quality Index can hit 150-200 on bad days. Face masks recommended; check IQAir Seoul daily before outdoor planning.
Travel score
Seoul March Weather Stats
Avg High
11°C
Avg Low
1°C
Rainy Days
7
49mm total
Sunshine
7h
Daily avg
Humidity
58%
Dry
UV Index
4
Moderate
Wind
14 km/h
Gusts 28
Crowds
Moderate
At attractions
March Sunrise & Sunset
Air Quality
PM2.5
60 μg/m³
PM10
90 μg/m³
Status
Unhealthy for Sensitive
Feels-Like Temperature & Wind
Feels like
Daytime
9°C
Nighttime
0°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 28 km/h
Activities Recommended for March
March Travel Pros & Cons
Pros
- Days noticeably warming
- First spring blossoms (forsythia, magnolia, late-month cherry)
- Hotel prices still moderate
Cons
- Worst air pollution of the year (fine dust)
- Variable weather — clear sun and cold rain
- Allergy season starts
March Events & Festivals
- First spring blossoms begin (forsythia, magnolia, then cherry late month)
- Air pollution from Chinese fine dust (mihaedi) season peaks early March
- Independence Movement Day (March 1) — public holiday
Seoul in March — Full Picture
March is Seoul's transition from winter to spring. Early March still has winter chill (8-12°C / 46-54°F daytime) and worst-of-year fine dust pollution. Late March warms up to 14-17°C / 57-63°F as spring blossoms emerge.
Fine dust (mihaedi) pollution from Chinese desert sandstorms peaks early-to-mid March. Air Quality Index can hit 150-200 on bad days. Face masks recommended; check IQAir Seoul daily before outdoor planning.
Independence Movement Day (March 1) commemorates the 1919 anti-Japanese movement. Public holiday — many shops closed, government offices closed. Solemn cultural significance.
First spring blossoms emerge mid-to-late March: forsythia (yellow flowers along streams), magnolia (white blooms), and finally cherry blossoms appearing in late March at Yeouido Park, Seokchon Lake, and Children's Grand Park (peak typically April 5-12).
Weather is variable: clear sunny days alternate with cold rain. Pack a folding umbrella. Hotel prices begin climbing toward spring peak rates but still reasonable. The 1-2 weeks before cherry blossoms is genuinely the underrated value window.
What to Wear & What to Pack
Light to medium jacket, sweater layers. Late March hits 17°C / 63°F daytime but mornings still cool (1-5°C / 34-41°F). Light scarf for evenings.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current17.3°C
7°C
8/mo
Summer (Jun·Jul·Aug)
29.7°C
20.7°C
13.3/mo
Autumn (Sep·Oct·Nov)
19°C
9.3°C
7.3/mo
Winter (Dec·Jan·Feb)
3.7°C
-4.7°C
5.3/mo
Seoul Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 2° | -6° | 6d·21mm | 5.5h | 60% | 2 | Quiet | Low season | |
| 5° | -4° | 5d·23mm | 6h | 58% | 3 | Quiet | Low season | |
| 11° | 1° | 7d·49mm | 7h | 58% | 4 | Moderate | Shoulder | |
| April (Best) | 18° | 7° | 8d·70mm | 7.5h | 60% | 6 | Very busy | Peak |
| May (Best) | 23° | 13° | 9d·105mm | 8h | 64% | 8 | Busy | Peak |
| 28° | 18° | 10d·130mm | 7.5h | 70% | 9 | Moderate | Shoulder | |
| 30° | 22° | 16d·405mm | 4.5h | 78% | 9 | Moderate | Shoulder | |
| 31° | 22° | 14d·290mm | 5.5h | 75% | 9 | Busy | Peak | |
| 27° | 17° | 10d·165mm | 6.5h | 72% | 7 | Busy | Peak | |
| October (Best) | 19° | 9° | 6d·50mm | 7h | 65% | 5 | Very busy | Peak |
| 11° | 2° | 6d·50mm | 6h | 65% | 3 | Moderate | Shoulder | |
| 4° | -4° | 5d·22mm | 5h | 65% | 2 | Moderate | Shoulder |
View Other Months
Seoul March Hotel Picks
Frequently Asked Questions
Is March a good time to visit Seoul?
Seoul in March is Average. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Seoul in March?
Seoul March averages a high of 11°C and a low of 1°C.
Does it rain much in Seoul in March?
Seoul March averages 49mm of rainfall over about 7 rainy days.
What should I wear in Seoul in March?
Light to medium jacket, sweater layers. Late March hits 17°C / 63°F daytime but mornings still cool (1-5°C / 34-41°F). Light scarf for evenings.
What time are sunrise and sunset in Seoul in March?
Seoul March sunrise is 06:43 and sunset is 18:30, with 11h 47m of daylight.
What's the air quality like in Seoul in March?
Seoul March air quality (AQI) averages 130, rated Poor. PM2.5 averages 60μg/m³.
What activities are recommended in Seoul in March?
In March, Seoul is great for First blossom viewing, Indoor museum visits (pollution days), Hanbok at palaces (warmer).
Is March peak season in Seoul?
Seoul March crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Seoul
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.