Weather in Seoul Today
Current temperature in Seoul: 16°C (61°F). Sunny. Today's high 25°C (77°F), low 14°C (57°F).
Today's Daylight Forecast
Moon & Islamic Calendar
High UV apply sunscreen before heading out. A hat or sun umbrella is recommended during peak hours.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 25°C.
17 of the last 20 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Health & Activity Advice
UV index is 7 today — high. Apply sunscreen before heading out, and consider a hat or shade during peak hours (roughly late morning to mid-afternoon).
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.
Nearby Regional Outlook
Seoul Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Seoul?
The hottest month in Seoul is typically August, with daytime highs averaging around 29.4°C (85°F), based on 10 years of historical weather data. Overnight lows during this period average near 22.7°C (73°F).
What is the coldest month in Seoul?
The coldest month in Seoul is typically January, with overnight lows averaging around -6.6°C (20°F) and daytime highs near 1.9°C (35°F), based on 10 years of historical weather data. Freezing overnight temperatures are common during this month, so plan for icy conditions in the early morning.
When does the rainy season start in Seoul?
Seoul has a clearly defined rainy season running roughly from July to September, based on 10 years of historical rainfall data. July is typically the wettest month, averaging about 313 mm of rain. Outside this window, rainfall is much lighter for the rest of the year.
What's the best time of year to visit Seoul?
The best time to visit Seoul is typically May, when daytime highs average a comfortable 22.6°C (73°F). Rainfall during this window averages around 111 mm, well below the 313 mm seen in July, the wettest month. This is based on 10 years of historical weather data.
Is Seoul's air quality safe right now?
As of the latest reading, Seoul's air quality index (AQI) is 17, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.