5-day weather forecast Seoul 19-05-2026

Weather forecast Seoul tomorrow 19.05.2026: partly cloudy, temperature from 20 °C to 27 °C.

No precipitation expected. Wind up to 2.69 m/s (gusts 3.58 m/s). Air humidity 22–41%, atmospheric pressure 760–763 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

← Mon, May 18

Tue, May 19, 2026

Wed, May 20 →

Forecast from 20 °C to 27 °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	21	21	21	20	20	20	21	22	22	23	24	26	27	27	27	27	27	26	25	24	24	23	23
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 (%)	33	94	77	70	100	100	100	85	97	49	13	43	29	50	46	50	47	47	50	15	6	5	7	7
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)	0.69	0.81	1	0.89	0.19	0.61	0.39	1	0.81	1.89	2.69	2.19	0.81	0.19	1.19	1.61	1.5	1.81	1.89	1.81	1.89	2.11	2.39	2.11
Wind gust (m/s)	1.06	1.22	1.61	1.5	0.33	0.97	0.64	1.33	1	2.33	3.17	2.53	0.92	0.22	1.39	1.86	1.78	2.28	2.67	2.75	3.06	3.25	3.58	3.14
Wind direction (°)	SSW 205°	SSW 196°	SSW 194°	S 173°	NNE 24°	NW 324°	NE 55°	NW 316°	N 349°	NE 39°	ENE 71°	E 79°	ESE 121°	ENE 74°	NNW 337°	NW 317°	WNW 293°	NW 307°	NNW 335°	NNW 344°	N 2°	ENE 59°	ENE 66°	ENE 74°

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 (%)	36	37	37	38	39	40	41	39	38	36	34	31	28	25	24	24	23	22	25	29	34	36	36	38

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	763	762	762	761	761	761	761	761	761	761	760	760	760	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)	17.3	16.6	15.6	14.7	14.8	16.4	19.6	25.2	30.2	35.1	38.4	40.6	42	42.9	43.3	43.2	43.6	40.5	38.5	24	17.5	16	15.2	15.2
PM10 (µg/m³)	21.7	20.7	19.1	17.4	16.8	18	21.2	26.7	31.8	36.6	40	42.2	43.7	44.7	45	45	45.4	42.3	40.8	28.3	22.8	21.6	20.7	20.5
Ozone (O₃) (µg/m³)	135	128	117	102	81	57	36	20	8	0	0	0	0	0	0	1	0	1	10	37	74	102	115	120
NO₂ (µg/m³)	22.7	24.6	28	34.3	45.5	59.7	72.3	82.6	91.3	96.4	95.8	91.6	87.7	85.6	83.8	82	81.5	81	76.1	62.3	44	30.3	24.3	22.9
SO₂ (µg/m³)	23.9	22.8	21.5	20.8	21	21.7	23.1	25.6	28.7	31	31.8	31.8	32	33	34.2	35.3	37	38.6	38	33.1	25.9	20.2	17.6	16.5
CO (µg/m³)	212.9	206.9	212.9	237.9	285.9	354.9	443.9	579.9	736.9	835.9	826.9	760.9	705.9	692.9	691.9	683.9	670.9	650.9	600.9	490.9	350.9	247.9	211.9	211.9

← Mon, May 18

Tue, May 19, 2026

Wed, May 20 →

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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.

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