IATA Code
ICN
ICAO Code
RKSI
Airport Type
Large Airport
Class
International
Weather & Climate near Incheon International Airport #
Climate
Incheon International Airport's climate is classified as Hot-Summer Continental (Dry Winter) - Hot-Summer Continental (Dry Winter) climate with hot summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -8°C to 29°C. Abundant rainfall (1275 mm/year), wettest in July.
Air Quality:
AQI 81
Moderate
Best Time to Visit
OctoberJuneSeptember
Temperature & Rainfall
Temperature Range
32°
Warmest Month
-14°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -8° - 0° | -9° | 30 mm | partly cloudy | 74% | 3.3 m/s | 0.3 low | 9.8h |
| February | Acceptable | -5° - 3° | -5° | 31 mm | partly cloudy | 73% | 3.8 m/s | 0.4 low | 10.7h |
| March | Good | 1° - 9° | 2° | 48 mm | partly cloudy | 76% | 3.4 m/s | 0.7 moderate | 11.8h |
| April | Very Good | 7° - 17° | 12° | 81 mm | partly cloudy | 79% | 3.3 m/s | 1.1 high | 13.0h |
| May | Very Good | 12° - 22° | 17° | 95 mm | partly cloudy | 81% | 3.0 m/s | 1.4 high | 14.0h |
| June | Very Good | 17° - 26° | 22° | 138 mm | partly cloudy | 83% | 2.7 m/s | 1.3 high | 14.5h |
| July | Good | 21° - 28° | 25° | 287 mm | overcast | 89% | 2.9 m/s | 1.3 high | 14.3h |
| August | Good | 22° - 29° | 25° | 272 mm | partly cloudy | 85% | 2.7 m/s | 1.4 high | 13.4h |
| September | Very Good | 16° - 25° | 21° | 152 mm | partly cloudy | 77% | 2.6 m/s | 1.1 high | 12.3h |
| October | Very Good | 9° - 19° | 14° | 56 mm | some cloud | 71% | 2.9 m/s | 0.7 moderate | 11.1h |
| November | Good | 1° - 10° | 3° | 56 mm | partly cloudy | 72% | 3.4 m/s | 0.4 low | 10.0h |
| December | Acceptable | -6° - 3° | -5° | 29 mm | partly cloudy | 74% | 3.2 m/s | 0.2 low | 9.5h |
