Climate of Seoul, South Korea
Area-weighted average across Seoul. For where people actually live and travel, see the cities below.
Seoul, a subdivision of Korea, Republic of, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -3°C / 26.6°F in January to 25.2°C / 77.4°F in August, with rainfall from 22 mm / 0.9 in to 324 mm / 12.8 in depending on the season (1317 mm / 51.9 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -3°C26.6°F | 22 mm0.9″ | Snowy |
| February | -0.6°C30.9°F | 26 mm1″ | Snowy |
| March | 4.7°C40.5°F | 47 mm1.9″ | — |
| April | 11.7°C53.1°F | 80 mm3.1″ | — |
| May | 17°C62.6°F | 96 mm3.8″ | — |
| June | 21.5°C70.7°F | 135 mm5.3″ | — |
| July | 24.7°C76.5°F | 324 mm12.8″ | — |
| August | 25.2°C77.4°F | 309 mm12.2″ | — |
| September | 20.3°C68.5°F | 149 mm5.9″ | — |
| October | 13.6°C56.5°F | 52 mm2″ | — |
| November | 6.3°C43.3°F | 52 mm2″ | — |
| December | -0.3°C31.5°F | 25 mm1″ | Snowy |
Frequently asked questions
What is the best time to visit Seoul?
Seoul, Korea, Republic of does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 25.2°C / 77.4°F, and the driest is January at 22 mm / 0.9 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Seoul?
Seoul, Korea, Republic of has area-weighted monthly average temperatures ranging from -3°C / 26.6°F in January to 25.2°C / 77.4°F in August. Annual rainfall averages about 1317 mm / 51.9 in, with the wettest month being July (324 mm / 12.8 in) and the driest January (22 mm / 0.9 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Seoul?
The hottest month in Seoul is August, with an area-wide average temperature of 25.2°C / 77.4°F.
What is the coldest month in Seoul?
The coldest month in Seoul is January, with an area-wide average temperature of -3°C / 26.6°F.
When does it rain most in Seoul?
The wettest month in Seoul is July, averaging about 324 mm / 12.8 in of rainfall. The driest is January with about 22 mm / 0.9 in.