Climate of Incheon, South Korea
Area-weighted average across Incheon. For where people actually live and travel, see the cities below.
Incheon, a subdivision of Korea, Republic of, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -3.6°C / 25.5°F in January to 25.3°C / 77.5°F in August, with rainfall from 27 mm / 1.1 in to 276 mm / 10.9 in depending on the season (1245 mm / 49 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 | -3.6°C25.5°F | 28 mm1.1″ | Snowy |
| February | -0.7°C30.7°F | 32 mm1.3″ | Snowy |
| March | 5°C41°F | 50 mm2″ | — |
| April | 11.7°C53.1°F | 80 mm3.1″ | — |
| May | 17°C62.6°F | 93 mm3.7″ | — |
| June | 21.6°C70.9°F | 136 mm5.4″ | — |
| July | 24.8°C76.6°F | 276 mm10.9″ | — |
| August | 25.3°C77.5°F | 266 mm10.5″ | — |
| September | 20.4°C68.7°F | 149 mm5.9″ | — |
| October | 13.7°C56.7°F | 55 mm2.2″ | — |
| November | 5.9°C42.6°F | 53 mm2.1″ | — |
| December | -1°C30.2°F | 27 mm1.1″ | Snowy |
Frequently asked questions
What is the best time to visit Incheon?
Incheon, Korea, Republic of does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 25.3°C / 77.5°F, and the driest is December at 27 mm / 1.1 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Incheon?
Incheon, Korea, Republic of has area-weighted monthly average temperatures ranging from -3.6°C / 25.5°F in January to 25.3°C / 77.5°F in August. Annual rainfall averages about 1245 mm / 49 in, with the wettest month being July (276 mm / 10.9 in) and the driest December (27 mm / 1.1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Incheon?
The hottest month in Incheon is August, with an area-wide average temperature of 25.3°C / 77.5°F.
What is the coldest month in Incheon?
The coldest month in Incheon is January, with an area-wide average temperature of -3.6°C / 25.5°F.
When does it rain most in Incheon?
The wettest month in Incheon is July, averaging about 276 mm / 10.9 in of rainfall. The driest is December with about 27 mm / 1.1 in.