The month in detail
What to expect in October
Autumn in Seoul is often underrated: 64°F, golden light and declining crowds. An interesting window. Rain risk remains low (15% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (8.3/10) remains theoretically better.
October ranks 5 out of 12 months in Seoul. Compared to September: −13°F daytime, 7 pts fewer rainy days, +0.7h of sun per day.
This month's conditions
What it's like in October
UV index
4 · moderate
protect during midday hours
Feels like
dry air
8°
Sea
21°C
cool, invigorating
Daylight
11.0h of daylight
Air quality
fair
AQI 51
Compare
Is October the right month?
The best month in Seoul is June (8.3/10), 0.8 pt higher than October.
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
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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 trip.
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 · 86°F
❄️Coolest monthJanuary · 36°F
🌧️Rainiest month ⓘJuly · 43%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in October
If October 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 81°F highs, 64°F 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 64°F, while afternoon highs average 81°F.
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 October?
In October, the sea averages 69°F in Seoul: cool, invigorating. Swimming is possible but brisk; sensitive swimmers may prefer a wetsuit.
Do you need sun protection in Seoul in October?
The average UV index reaches 4 in October in Seoul (moderate), with about 11.0h of daylight. Protect during midday hours.