The month in detail
What to expect in April
Spring marks the start of the good season in Seoul. Temperatures rise (18°C) and tourists have not yet arrived en masse. Rain risk remains low (22% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (8.3/10) remains theoretically better.
April ranks 5 out of 12 months in Seoul. Compared to March: +6°C daytime, 7 pts more rainy days, +0.5h of sun per day.
This month's conditions
What it's like in April
UV index
6 · moderate
protect during midday hours
Feels like
dry air
4°
Sea
11°C
cold, for the brave
Daylight
13.0h of daylight
Air quality
poor
AQI 63
Compare
Is April the right month?
The best month in Seoul is June (8.3/10), 0.8 pt higher than April.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Seoul
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
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🎟️ Activities & tours · Seoul
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.
Country · South Korea
🗣️LanguageKorean
💶CurrencySouth Korean Won (₩)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthAugust · 30°C
❄️Coolest monthJanuary · 2°C
🌧️Rainiest month ⓘJuly · 43%
🏖️ Beach holiday
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in April
If April doesn't convince you for this destination, compare with others.
Location
Where is Seoul ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
South KoreaTemperate oceanic climate with a 8.3 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
37.57°N · 126.98°E
Questions
Frequently asked questions
What is the best time to visit Seoul?
June is the best month with 27.0°C highs, 18.0°C lows, 6.3h of sunshine and 25.0% rainy days. The months of June & May offer comparable conditions.
How many hours of sunshine does Seoul get in June?
Seoul averages 6.3 sunshine hours per day in June. It is the sunniest month with a climate score of 7.8/10.
What is the rainiest month in Seoul?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Seoul in June?
In June, overnight lows reach 18.0°C, while afternoon highs average 27.0°C.
Is Seoul good in winter?
In winter (December-February), Seoul scores 4.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 7.8/10.
When should you avoid Seoul?
January is the most difficult month to visit Seoul, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Seoul in April?
In April, the sea averages 11°C in Seoul: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.
Do you need sun protection in Seoul in April?
The average UV index reaches 6 in April in Seoul (moderate), with about 13.0h of daylight. Protect during midday hours.