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Seoul, South Korea · Temperate oceanic

Seoul in June: go or not?

Excellent time. Seoul in June scores 8.3/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 37.57°N · 126.98°E
⚡ This month's verdict
Go for it
Seoul · June
8.3
18–27°
Temperature
25%
Rain
6h
Sun
🌊 Seaside☀️ Bright🍴 Gastronomy
Photo : Jenny Kim via Unsplash
The month in detail

What to expect in June

Summer in Seoul brings pleasant temperatures (27°C) and long sunny days (6.3h of sunshine). Rain risk remains low (25% of days), leaving good room for outdoor activities.

June is the best month of the year in Seoul. Compared to May: +4°C daytime, −0.9h of sun per day.

This month's conditions

What it's like in June

UV index
7 · high
sunscreen and hat advised
Feels like
muggy at times
16°
Sea
23°C
pleasant for swimming
Daylight
14.6h of daylight
Air quality
fair
AQI 55
Compare

Is June the right month?

June is actually the best month of the year in Seoul. Good timing.

See all 12 months →
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Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Seoul

GetYourGuide selection · free cancellation

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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
Location

Where is Seoul ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
South Korea
Temperate 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 June?
In June, the sea averages 23°C in Seoul: pleasant for swimming. Swimming is pleasant without a wetsuit.
Do you need sun protection in Seoul in June?
The average UV index reaches 7 in June in Seoul (high), with about 14.6h of daylight. Sunscreen and hat advised.