5-day weather forecast Seoul 09-04-2026

Weather forecast Seoul tomorrow 09.04.2026: light drizzle, temperature from 8 °C to 10 °C.

Precipitation probability 69%. Wind up to 3.89 m/s (gusts 5.56 m/s). Air humidity 34–90%, atmospheric pressure 750–764 mm Hg, UV index up to 0.5.

Sunrise 06:06
Sunset 19:02

Waning Gibbous61% illuminated
Moonrise 01:12 · Moonset 10:16

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Table

← Wed, Apr 8

Thu, Apr 9, 2026

Fri, Apr 10 →

Forecast from 8 °C to 10 °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)	10	10	9	9	9	9	9	10	9	9	8	9	8	8	8	8	8	9	9	8	8	9	9	9
Precipitation (mm/hr)	0	0	0	0	0	0	0	0.01	0.24	0.21	0.07	0.13	0.92	1.55	0.21	0.23	0.21	0.14	0.15	1.64	1.32	0.24	1.27	0.29

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 (%)	100	12	14	48	48	48	48	70	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Rain chance (%)	0	0	0	0	0	0	0	69	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

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)	0.61	1	0.69	1	1.11	0.61	0.89	1	1	0.61	2.69	3	3.39	3.39	3.69	3.81	3.81	3.89	3.81	3.11	2.89	2.31	2	1.89
Wind gust (m/s)	0.86	1.47	1.06	1.5	1.64	0.89	1.33	1.44	1.33	0.78	3.56	3.97	4.39	4.42	4.83	5.03	5.17	5.53	5.56	4.47	4.11	3.28	2.92	2.81
Wind direction (°)	SSW 203°	SW 229°	SW 214°	S 183°	SSW 196°	SE 140°	SSE 153°	ESE 112°	SSE 163°	E 88°	ENE 65°	ENE 72°	ENE 71°	E 81°	E 81°	E 87°	E 86°	E 90°	E 92°	E 83°	E 86°	E 86°	E 93°	E 98°

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 (%)	34	35	37	37	37	36	35	34	41	53	59	60	67	74	76	76	76	78	81	89	89	89	90	90

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)	764	763	762	762	762	761	761	761	761	761	761	760	758	757	755	754	753	752	751	751	751	751	750	750

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	0.1	0.4	0.2	0.5	0.5	0.5	0.4	0.5	0.2	0.1	0	0	0	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	17.3	18	19.9	24.6	31.9	40.4	49.7	57.9	63.8	60.7	54.5	49.3	46.2	44.2	43.3	43.7	45.4	44	38.7	38.4	38.5	34.2	30.2
PM10 (µg/m³)	29.7	30.9	31.8	31.5	32.6	38.9	47.9	58.2	67.3	72.8	69.6	63.5	58.5	55.3	53.2	52	52	52.2	51.8	50.7	49.8	49.1	44	39.8
Ozone (O₃) (µg/m³)	99	99	96	86	62	31	8	0	0	0	0	0	0	0	0	0	2	5	8	9	9	12	20	31
NO₂ (µg/m³)	20.2	21.5	25	33.8	52.9	77.4	95.6	101.8	101.6	100.6	100.3	99.2	97.9	96.8	95.4	93.3	89.5	84.9	81.6	81.5	82.6	81.9	76.8	69.7
SO₂ (µg/m³)	22.5	20.9	20.5	23.7	32.4	44.7	57.7	73.3	89.5	97.6	90.8	75.9	63.8	58.8	56.6	55.5	55.4	56.3	56.5	55.8	54.4	51.3	44.9	36.8
CO (µg/m³)	292.9	297.9	327.9	384.9	482.9	606.9	719.9	798.9	864.9	944.9	1073.9	1215.9	1289.9	1222.9	1087.9	1016.9	1106.9	1260.9	1318.9	1183.9	952.9	755.9	638.9	555.9

← Wed, Apr 8

Thu, Apr 9, 2026

Fri, Apr 10 →

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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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