5-day weather forecast Seoul 19-05-2026

Weather forecast Seoul today 19.05.2026: partly cloudy, temperature from 20 °C to 25 °C.

No precipitation expected. Wind up to 2.89 m/s (gusts 4.36 m/s). Air humidity 35–53%, atmospheric pressure 760–762 mm Hg, UV index up to 3.9.

Sunrise 05:20
Sunset 19:38

Waxing Crescent7% illuminated
Moonrise 06:59 · Moonset 22:50

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Table

Tue, May 19, 2026

Wed, May 20 →

Forecast from 20 °C to 25 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	22	20	21	20	20	20	20	21	21	21	22	24	24	24	25	25	24	24	24	23	23	22	22	22
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	74	0	100	88	97	69	100	100	5	9	18	47	47	48	48	49	50	48	49	55	45	49	48	30
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	0.81	1.11	1.19	1.11	1	0.39	0.19	0.61	1.39	1	1.5	1.5	1.61	1.89	2.19	2.31	2.61	2.81	2.39	2.31	2.89	2.39	1.5	1.5
Wind gust (m/s)	1.14	1.61	1.81	1.72	1.56	0.64	0.31	0.81	1.81	1.25	1.72	1.72	1.83	2.19	2.53	2.78	3.25	3.58	3.17	3.31	4.36	3.58	2.33	2.36
Wind direction (°)	SW 220°	SSW 203°	SSW 192°	SSE 159°	SSE 160°	SSE 162°	NNE 24°	NNE 27°	ENE 61°	N 8°	NE 41°	ENE 61°	NNE 22°	N 359°	NNE 12°	N 10°	N 1°	N 352°	NNE 12°	ENE 63°	E 79°	E 96°	ENE 70°	ENE 71°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	38	53	41	43	44	45	46	44	43	42	40	37	37	36	35	35	36	37	37	37	36	36	39	40

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	762	762	762	761	761	761	762	762	762	762	762	762	761	761	761	761	761	761	761	760	761	761	761	761

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0.3	1.1	1.7	3.6	2.7	3.5	3.9	3	2.1	2.3	1.2	0.4	0.1	0	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	12.7	11.5	10.4	10.1	10.8	13.5	18	24.9	30.9	35.9	40	42.3	43.3	42.3	41.3	40.5	39.7	37.8	30.1	22.1	16.6	14.6	14	14.4
PM10 (µg/m³)	14.5	13	11.7	11.1	11.7	14.1	18.5	25.5	31.4	36.4	40.6	42.9	43.9	43.2	42.2	41.5	40.6	38.7	31.2	23.2	17.6	15.5	14.8	15.1
Ozone (O₃) (µg/m³)	135	129	119	104	79	48	23	10	4	0	0	0	0	0	0	1	4	9	21	45	76	99	108	109
NO₂ (µg/m³)	20.6	21.7	24.5	32	48.3	69.4	85.9	93.8	97.1	98.7	99.2	97.9	95.7	92.5	88.3	84.7	83.4	82.7	78.1	65.4	48.9	37.3	33.5	34.5
SO₂ (µg/m³)	20.9	19.8	19	19.3	21.2	24.2	27.5	31	34.7	37.9	40.5	42.6	43.5	42	39.3	37.8	39.4	42.1	42.6	38.2	31.5	26.7	25.6	26.4
CO (µg/m³)	201.9	201.9	214.9	243.9	295.9	363.9	426.9	484.9	538.9	571.9	563.9	533.9	522.9	551.9	600.9	647.9	705.9	761.9	756.9	637.9	457.9	318.9	262.9	246.9

Tue, May 19, 2026

Wed, May 20 →

Frequently asked questions about the weather in Seoul

Today in Seoul the temperature ranges from 20 °C to 25 °C, wind up to 2.89 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Seoul today is 0%. View the full multi-day forecast above to see the rain chances for each upcoming day.

The wind speed in Seoul today reaches up to 2.89 m/s with gusts up to 4.36 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Seoul today ranges from 35% to 53%. View the humidity chart above for hourly details.

The UV index in Seoul today reaches up to 3.9. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Seoul today ranges from 760 to 762 mm Hg. View the pressure chart above for hourly readings.

Cloud cover in Seoul today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.

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.

Learn more about our methodology →