15-Day Weather Forecast - Seoul
15-day weather forecast for Seoul: temperatures from 14°C (57°F) to 30°C (86°F). Average daily high 27°C (81°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Seoul's 15-day outlook ranges from a low of 14°C to a high of 30°C, with an average daytime high near 26°C. That's 1° above the long-term average high of 25°C for this time of year. It continues a recent pattern — 16 of the last 19 days with published data have run warmer than normal. Air quality is currently Moderate (AQI 83), driven mainly by PM2.5 at 29 μg/m³.
Today vs Normal
The long-term average high for today is 25°C.
16 of the last 19 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.
Extended Outlook for Seoul
Over the next 15 days, Seoul is forecast to see temperatures ranging from 14°C to 30°C, averaging a daily high of 26°C. The extended outlook indicates occasional showers on 2 days, with 3 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.