5-day weather forecast Seoul Sep 16, 2026

17°16–28° · Clear

Weather forecast Seoul today Sep 16, 2026: sunny, temperature from 16 °C to 28 °C.

Precipitation probability 10%. Wind up to 2.61 m/s (gusts 6.61 m/s). Air humidity 24–52%, atmospheric pressure 762–764 mm Hg, UV index up to 6.2.

Sunrise 06:14
Sunset 18:38
First Quarter32% illuminated
Moonrise 11:43 · Moonset 21:14
Chart
Table
Wed, Sep 16, 2026

Forecast from 16 °C to 28 °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)191918171716161618202224262728282827262524232322
Precipitation (mm/hr)000000000000000000000000

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 (%)00000000000000000000216100
Rain chance (%)2222222211111000001111110

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)1.191.111.191.51.391.311.391.391.391.611.811.691.89222.312.6120.191.50.890.6911.61
Wind gust (m/s)1.251.111.221.611.611.331.611.811.9222.422.422.832.812.642.752.722.440.721.811.110.721.036.61
Wind direction (°)NE 43°ENE 71°ENE 75°ENE 64°ENE 68°ENE 74°ENE 70°E 80°ENE 76°ENE 76°ENE 71°ENE 78°E 85°E 101°ESE 112°ESE 119°ESE 120°SE 132°SE 134°W 264°W 280°N 357°ENE 59°ESE 106°

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 (%)504950505152525146393431312926242425313438404142

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)764764764764764764764764764764764764764763763762762763763763764764764764

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 Index00000000.10.71.83.45.16.26.24.93.21.60.60.100000

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)40.739.736.733.23028.327.630.730.325.515.613.813.813.914.214.314.415.222.240.34435.62620.7
PM10 (µg/m³)4139.836.833.330.328.527.83130.526171615.715.815.916.116.116.823.641.845.436.927.923
Ozone (O₃) (µg/m³)0000000272360109147168179176154119876036201824
NO₂ (µg/m³)78.575.572.569.46662.55956.453.748.337.323.613.36.93.88.827.353.976.994.4108.2112.4100.378.6
SO₂ (µg/m³)26.423.719.916.714.51312.413.615.817.116.414.713.111.810.710.310.912.113.916.920.522.12015.9
CO (µg/m³)851765598457372312285315377407365291234214211216221233271364481549522445
Wed, Sep 16, 2026

Frequently asked questions about the 5-day weather in Seoul

What will the weather be like in Seoul over the next 5 days?

Over the next 5 days in Seoul the temperature is expected to range from about 16 to 29 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Seoul?

The chance of rain in Seoul over the next 5 days reaches 16%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Seoul?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Seoul will be the warmest and which the coolest?

Over the next 5 days the temperature in Seoul ranges from about 16 to 29 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Seoul over the next 5 days?

Over the next 5 days the wind in Seoul picks up to 4 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Seoul is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 16%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Seoul?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Will I need an umbrella or sunscreen in Seoul this week?

Rain reaches a 16% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 6.2; sunscreen is worth it from about 3 upwards.

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.