5-day weather forecast Seoul Nov 18, 2026

10°3° · Patchy rain possible

Weather forecast Seoul Wednesday Nov 18, 2026: patchy rain possible, temperature from 3 °C to 10 °C.

Precipitation probability 27%. Wind up to 5.5 m/s (gusts 12.08 m/s). Air humidity 55–88%, atmospheric pressure 761–764 mm Hg, UV index up to 2.2.

Sunrise 07:15
Sunset 17:19
Waxing Gibbous73% illuminated
Moonrise 13:43 · Moonset 00:24
Chart
Table

Forecast from 3 °C to 10 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)10109987777789988888765433
Precipitation (mm/hr)0.030.020.01000000.04000.010.060.090.040.090.020.020.030.060.02000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)61748830355792919597756753587565516073525140167
Rain chance (%)2325271616182421221711917171417912161711853

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)1.611.8122.312.612.892.693.193.613.1133.69454.314.114.314.194.314.694.895.55.315.11
Wind gust (m/s)3.394.145.085.786.086.335.977.037.036.646.818.3110.1410.5310.199.929.288.447.588.539.4710.6711.6912.08
Wind direction (°)WNW 282°WNW 292°WNW 298°WNW 298°WNW 302°WNW 303°WNW 303°WNW 297°WNW 298°WNW 290°W 273°W 266°WSW 257°W 281°WNW 282°WNW 283°WNW 285°WNW 289°WNW 287°WNW 299°WNW 300°WNW 301°NW 308°NW 310°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)878888888786837772676056576262606166707569666055

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)764764763763763763763763764764763763762761761761761761761761762763764764

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index0000000000.30.60.822.20.90.20.30000000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)22.519.718.817.216.215.715.21616.815.113.110.9101010.29.78.67.99.18.57.77.36.86.7
PM10 (µg/m³)26.723.221.619.418.3181819.12018.316.413.912.812.812.71210.49.210.39.38.47.87.87.8
Ozone (O₃) (µg/m³)614253233312927252632414748454030178710152230
NO₂ (µg/m³)56.845.231.621.718.218.520.625.532.235.732.626.421.920.621.124.232.343.1505046.241.235.228.1
SO₂ (µg/m³)23.918.614.511.810.710.911.512.513.914.513.411.410.210.411.412.31313.714.214.714.914.412.39.5
CO (µg/m³)1079850489228168208274372497560501380291275292309319331336334325306268220

Seoul on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.