Canonical: https://tripfieldbook.com/en/tools/weather/seoul/
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Description: Average monthly high and low temperatures, rainfall and the wettest months in Seoul, from Korea Meteorological Administration climate normals, to help you choose when to go and what to pack.

# Seoul weather by month: average temperature and rainfall

Average monthly high and low temperatures, rainfall and the wettest months in Seoul, from Korea Meteorological Administration climate normals, to help you choose when to go and what to pack.

## When it rains most

Rainy season (jangma), normal dates

around June 25 – around July 26Average onset and end published by the Korea Meteorological Administration for 1991–2020; actual dates vary each year. [Sources](<https://data.kma.go.kr/climate/rainySeason/selectRainySeasonList.do>)

Wettest months on average

Jul, Aug, and SepThe three months with the highest normal rainfall at this station.

| Month | Avg high (°C) | Avg low (°C) | Rainfall (mm) |
| --- | --- | --- | --- |
| Jan | 2.1 | -5.5 | 16.8 |
| Feb | 5.1 | -3.2 | 28.2 |
| Mar | 11.0 | 1.9 | 36.9 |
| Apr | 17.9 | 8.0 | 72.9 |
| May | 23.6 | 13.5 | 103.6 |
| Jun | 27.6 | 18.7 | 129.5 |
| Jul | 29.0 | 22.3 | 414.4 |
| Aug | 30.0 | 22.9 | 348.2 |
| Sep | 26.2 | 17.7 | 141.5 |
| Oct | 20.2 | 10.6 | 52.2 |
| Nov | 11.9 | 3.5 | 51.1 |
| Dec | 4.2 | -3.4 | 22.6 |

Station Seoul · Korea Meteorological Administration · normals 1991–2020 · [Sources](<https://worldweather.wmo.int/en/city.html?cityId=231>)

## Seoul travel guides

- [![View of Buyongji Pond in the Changdeokgung Secret Garden, with a pavilion and trees](<https://tripfieldbook.com/images/changdeokgung-huwon-booking/buyongji-1200.webp>)](<https://tripfieldbook.com/en/south-korea/seoul/changdeokgung-huwon/>)

  ### [Changdeokgung Secret Garden Sold Out? Palace Halls or On-Site Tickets](<https://tripfieldbook.com/en/south-korea/seoul/changdeokgung-huwon/>)

  

  South Korea · Seoul · Palace visitSources checked 2026.10.13

## Monthly weather by city

- [Fukuoka](<https://tripfieldbook.com/en/tools/weather/fukuoka/>)
- [Kyoto](<https://tripfieldbook.com/en/tools/weather/kyoto/>)
- [Miyajima](<https://tripfieldbook.com/en/tools/weather/miyajima/>)
- [Hokkaido without a car](<https://tripfieldbook.com/en/tools/weather/sapporo/>)
- [Takayama](<https://tripfieldbook.com/en/tools/weather/takayama/>)
- [Yufuin](<https://tripfieldbook.com/en/tools/weather/yufuin/>)
- [Busan](<https://tripfieldbook.com/en/tools/weather/busan/>)
- [Shanghai](<https://tripfieldbook.com/en/tools/weather/shanghai/>)
- [Hong Kong](<https://tripfieldbook.com/en/tools/weather/hong-kong/>)
- [Taipei](<https://tripfieldbook.com/en/tools/weather/taipei/>)
- [Da Nang and Hoi An](<https://tripfieldbook.com/en/tools/weather/da-nang/>)
- [Singapore](<https://tripfieldbook.com/en/tools/weather/singapore/>)
- [Phillip Island](<https://tripfieldbook.com/en/tools/weather/phillip-island/>)
- [Vienna](<https://tripfieldbook.com/en/tools/weather/vienna/>)
- [Granada](<https://tripfieldbook.com/en/tools/weather/granada/>)
- [Seville](<https://tripfieldbook.com/en/tools/weather/seville/>)
- [Budapest](<https://tripfieldbook.com/en/tools/weather/budapest/>)
- [Amsterdam](<https://tripfieldbook.com/en/tools/weather/amsterdam/>)

Photo credits1

View of Buyongji Pond in the Changdeokgung Secret Garden, with a pavilion and trees

[Sadopaul · CC BY-SA 4.0](<https://commons.wikimedia.org/wiki/File:Changdeokgung_Buyongji_in_2026.jpg>) · [CC BY-SA 4.0](<https://creativecommons.org/licenses/by-sa/4.0/>)