Weather in Seoul - 14-day forecast

Detailed weather forecast for Seoul, South Korea: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Seoul

today🌧️ 24°💧 25.6 mm

Thu🌧️ 24°💧 21.3 mm

Fri🌧️ 25°💧 19.3 mm

Sat☁️ 32°💧 0.2 mm

Sun🌧️ 36°💧 1.2 mm

Mon🌤️ 34°💧 16.1 mm

Tue☀️ 34°💧 62.2 mm

Wed☁️ 34°💧 11.4 mm

14-day forecast - Seoul

📅 Seoul 30 & 45-day weather - long-range outlook

Next 16 days · forecast

30°

around 27° at night · days with rain: 12

Weeks 3-4 · avg for July

30°

around 24° at night · rain chance 54%

Weeks 5-7 · avg for August

30°

around 24° at night · rain chance 33%

The 30 & 45-day outlook for Seoul: the next 16 days are a numerical forecast updated daily - on average 30° by day and 27° at night. Further out we rely on multi-year climate averages: around 30° in July, and about 30° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Seoul

Wednesday8 July 2026

🌧️24°heavy rain

sunrise 05:18 · sunset 19:56 · night 25° · evening 26° · rain 25.58 mm · humidity 95% · wind 6 m/s · clouds 100%

Thursday9 July 2026

🌧️24°moderate rain

sunrise 05:18 · sunset 19:56 · night 23° · evening 24° · rain 21.25 mm · humidity 91% · wind 5 m/s · clouds 100%

Friday10 July 2026

🌧️25°moderate rain

sunrise 05:19 · sunset 19:56 · night 25° · evening 26° · rain 19.32 mm · humidity 87% · wind 2 m/s · clouds 100%

Saturday11 July 2026

☁️32°overcast clouds

sunrise 05:19 · sunset 19:55 · night 30° · evening 32° · rain 0.18 mm · humidity 51% · wind 3 m/s · clouds 100%

Sunday12 July 2026

🌧️36°light rain

sunrise 05:20 · sunset 19:55 · night 29° · evening 33° · rain 1.24 mm · humidity 39% · wind 5 m/s · clouds 1%

Monday13 July 2026

🌤️34°a few clouds

sunrise 05:21 · sunset 19:54 · night 29° · evening 31° · rain 16.11 mm · humidity 45% · wind 4 m/s · clouds 14%

Tuesday14 July 2026

☀️34°clear sky

sunrise 05:21 · sunset 19:54 · night 29° · evening 33° · rain 62.22 mm · humidity 43% · wind 5 m/s · clouds 7%

Wednesday15 July 2026

☁️34°overcast clouds

sunrise 05:22 · sunset 19:53 · night 27° · evening 32° · rain 11.4 mm · humidity 39% · wind 5 m/s · clouds 88%

Thursday16 July 2026

☁️29°overcast clouds

sunrise 05:23 · sunset 19:53 · night 27° · evening 28° · rain 0.6 mm · humidity 61% · wind 3 m/s · clouds 100%

Friday17 July 2026

🌧️28°light rain

sunrise 05:24 · sunset 19:52 · night 27° · evening 30° · rain 7.77 mm · humidity 75% · wind 3 m/s · clouds 100%

Saturday18 July 2026

🌧️29°light rain

sunrise 05:24 · sunset 19:52 · night 27° · evening 29° · rain 6.87 mm · humidity 64% · wind 3 m/s · clouds 93%

Sunday19 July 2026

🌧️32°light rain

sunrise 05:25 · sunset 19:51 · night 27° · evening 29° · rain 1.23 mm · humidity 44% · wind 4 m/s · clouds 22%

Monday20 July 2026

☁️24°overcast clouds

sunrise 05:26 · sunset 19:51 · night 24° · evening 24° · rain 4.8 mm · humidity 66% · wind 3 m/s · clouds 100%

Tuesday21 July 2026

☁️29°overcast clouds

sunrise 05:26 · sunset 19:50 · night 27° · evening 28° · rain 0.99 mm · humidity 49% · wind 2 m/s · clouds 100%

Wednesday22 July 2026

🌤️31°scattered clouds

sunrise 05:27 · sunset 19:49 · night 28° · evening 30° · rain 6.57 mm · humidity 46% · wind 2 m/s · clouds 33%

Thursday23 July 2026

🌧️31°light rain

sunrise 05:28 · sunset 19:49 · night 28° · evening 30° · rain 0.36 mm · humidity 34% · wind 3 m/s · clouds 94%

☀️ UV index in Seoul - is it safe to sunbathe?

Today the UV index in Seoul is 3 (moderate) - unprotected fair skin can burn in about 60 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

🌊 Sea temperature - Seoul

Water today

26°C

Week avg

28°C

How's the water?

warm

16-day sea temperature forecast:

8.07 26°C9.07 27°C10.07 27°C11.07 28°C12.07 29°C13.07 29°C14.07 29°C15.07 28°C16.07 28°C

Average sea temperature through the year:

Jan 4°CFeb 3°CMar 6°CApr 12°CMay 17°CJun 23°CJul 28°CAug 30°CSep 27°COct 22°CNov 16°CDec 8°C

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Seoul

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Taejŏn	6.2	8.2	very good
Pohang	6.1	8.1	very good
Taegu	6	8.1	very good
Cheongju-si	5.5	6.7	very good
Seul	5	5.5	very good
Inch'ŏn	5	5.5	very good
Ansan-si	3.8	4.4	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 10:00).

Seoul weather through the year

Warmest, driest months on average: April, May, June, July.

🎉 Public holidays in Seoul - when are the long weekends?

Next long weekend in Seoul: Constitution Day (17 July, Friday) - Friday–Sunday (3 days off).

17 JulyFriday

Constitution Day

🎈 long weekend

17 AugustMonday

Liberation Day

🎈 long weekend

24 SeptemberThursday

Chuseok

🎈 long weekend + bridge day

25 SeptemberFriday

Chuseok

🎈 long weekend

26 SeptemberSaturday

Chuseok

falls on a weekend

5 OctoberMonday

National Foundation Day

🎈 long weekend

9 OctoberFriday

Hangul Day

🎈 long weekend

25 DecemberFriday

Christmas Day

🎈 long weekend

1 JanuaryFriday 2027

New Year's Day

🎈 long weekend

6 FebruarySaturday 2027

Lunar New Year

falls on a weekend

8 FebruaryMonday 2027

Lunar New Year

🎈 long weekend

9 FebruaryTuesday 2027

Lunar New Year

🎈 long weekend + bridge day

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

AnyangIncheon

FAQ - Seoul weather

What is the weather like in Seoul today?

Today it is about 24° during the day and 25° at night, heavy rain.

How far ahead can I check the forecast for Seoul?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.