5-day weather forecast Seoul 21-07-2026

Weather forecast Seoul Tuesday, July 21 21.07.2026: sunny, temperature from 23 °C to 33 °C.

Precipitation probability 13%. Wind up to 4.61 m/s (gusts 5.28 m/s). Air humidity 43–87%, atmospheric pressure 755–758 mm Hg, UV index up to 9.2.

Sunrise 05:27
Sunset 19:49

First Quarter53% illuminated
Moonrise 12:51 · Moonset 23:33

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Table

← Mon, Jul 20

Tue, Jul 21, 2026

Forecast from 23 °C to 33 °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)	24	24	23	23	23	23	23	24	25	27	28	29	31	31	31	33	29	28	30	27	26	27	25	24
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 (%)	6	7	10	6	7	10	13	14	12	22	12	17	4	8	7	12	9	5	5	5	4	45	4	5
Rain chance (%)	10	11	11	11	12	13	13	11	9	7	3	3	2	2	2	2	2	3	2	3	4	7	6	6

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	0.69	0.81	0.61	0.5	0.39	0.61	0.39	0.5	0.5	1.19	1.89	1.31	3.39	3.89	3.5	4.61	3.11	3.31	2.81	2	1.19	1.11	0.89
Wind gust (m/s)	0.92	1.11	1.25	0.97	0.83	0.67	0.94	0.53	0.61	0.58	1.39	2.19	1.5	3.92	4.5	4.03	5.28	3.83	4.11	3.72	2.75	1.67	1.58	1.33
Wind direction (°)	WSW 251°	SW 230°	WSW 245°	NNW 328°	NNW 348°	N 4°	E 84°	SE 124°	E 97°	ESE 112°	SW 232°	WSW 239°	SSW 207°	WSW 245°	WSW 246°	W 261°	W 261°	W 261°	W 273°	WSW 239°	WSW 255°	W 265°	WSW 243°	SW 220°

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 (%)	83	84	85	85	86	87	87	83	77	70	58	54	50	47	46	43	50	54	51	58	63	61	69	72

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)	757	756	757	757	757	757	757	758	758	757	756	756	757	756	755	756	756	756	756	757	757	757	757	757

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	0.1	0.6	1.5	3	5	7	7.3	9.2	7	5.4	3.6	1.8	0.7	0.1	0	0	0	0

← Mon, Jul 20

Tue, Jul 21, 2026

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 →