5-day weather forecast Seoul 17-07-2026

Weather forecast Seoul today 17.07.2026: smoky haze, temperature from 23 °C to 33 °C.

Precipitation probability 94%. Wind up to 3 m/s (gusts 4.19 m/s). Air humidity 45–94%, atmospheric pressure 749–752 mm Hg, UV index up to 8.8.

Sunrise 05:24
Sunset 19:52

Waxing Crescent15% illuminated
Moonrise 08:09 · Moonset 21:45

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Table

Fri, Jul 17, 2026

Sat, Jul 18 →

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)	25	25	25	24	24	24	24	25	26	27	29	31	32	33	32	30	27	25	25	26	24	24	24	23
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0.01	0.03	0.02	0.52	1.89	2.1	10.86	4.54	0.45	1.56	0.68	0.26

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	9	15	5	10	21	18	10	30	28	48	45	85	69	63	90	53	68	100	0	100	100	100	100
Rain chance (%)	9	8	9	9	9	11	10	9	8	7	6	5	9	8	7	44	59	71	94	90	61	78	66	48

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	0.89	0	0.5	0.31	0.5	0.81	1	1.11	1.11	1.11	1.31	1.31	1.31	1.19	1.69	2.39	0.39	1.61	2.19	1.81	2.61	3	2.81
Wind gust (m/s)	1.17	1.36	0	0.78	0.47	0.78	1.17	1.31	1.28	1.28	1.28	1.5	1.5	1.5	1.39	2.11	3.08	0.5	2.06	2.89	2.47	3.69	4.19	3.97
Wind direction (°)	SW 215°	W 272°	ESE 116°	S 169°	SSE 164°	NE 53°	E 86°	NE 48°	E 99°	ESE 110°	ESE 116°	ESE 111°	ESE 111°	ESE 117°	SSE 151°	SSW 203°	S 190°	SW 220°	WNW 300°	E 80°	E 82°	E 95°	E 99°	ESE 102°

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 (%)	74	76	77	78	79	80	80	77	72	67	59	52	47	45	47	57	76	87	93	94	93	93	90	89

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)	752	752	752	752	752	752	752	752	752	752	752	752	752	751	750	750	750	750	750	750	750	750	750	749

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	1.8	3.5	5.5	6.8	8.8	8.8	8.2	4.1	1.8	0.4	0.1	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)	44.6	50.5	55.9	64.3	66.6	67.3	68.9	68.2	66.6	49.5	38.1	32.6	31.7	32.2	32	31.2	29.9	29.2	28.9	32.4	34.1	30.2	27.6	26.3
PM10 (µg/m³)	65.2	70.8	75.9	82.2	83.1	81.7	83.4	83.1	82.9	69.2	56.5	49.4	47.3	46.9	46	44.6	43.2	42.4	40.9	41.8	43.3	37.8	34	31.4
Ozone (O₃) (µg/m³)	17	16	15	15	11	7	12	31	59	89	120	154	182	205	223	230	224	208	184	146	101	70	65	75
NO₂ (µg/m³)	87.3	84.1	79.8	75.2	70.7	65.8	59.8	52	43.2	34.8	27	19.6	14	10.4	8.7	9.5	13.1	19.3	28.3	43.9	62.2	71.7	64.8	49.1
SO₂ (µg/m³)	28.3	27.3	25.6	24.3	23.6	23.3	22.9	22.7	22.5	21.6	19.3	16.4	14	12.7	12	11.5	11.1	11	11.4	13	15.2	16.2	14.8	12.2
CO (µg/m³)	442	443	464	480	482	481	484	499	519	526	511	483	453	412	369	358	398	469	551	652	763	838	859	844

Fri, Jul 17, 2026

Sat, Jul 18 →

Frequently asked questions about the weather in Seoul

Today in Seoul the temperature ranges from 23 °C to 33 °C, wind up to 3 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Seoul today is 94%. 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 3 m/s with gusts up to 4.19 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Seoul today ranges from 45% to 94%. View the humidity chart above for hourly details.

The UV index in Seoul today reaches up to 8.8. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Seoul today ranges from 749 to 752 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 →