UTC Offset
UTC+09:00
Incheon, South Korea Snapshot 2026
Where is Incheon?
Incheon, South Korea
- Continent
- Asia
- Country
- South Korea
- City
- Incheon
- Population
- 3M
- Coordinates
- 37.46°, 126.71°
Incheon is a city in South Korea with a population of approximately 3M. Average temperatures range from -5°C (22°F) in January to 29°C (83°F) in August. The best time to visit is May, June, September.
Time in Incheon right now
Open full time & time zone page 00:25 25
Wednesday, July 1, 2026
IANA time zone
Asia/Seoul
Daylight saving
No DST
Next DST change
—
Live weather in Incheon
Daylight in Incheon today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 42m
Climate normals for Incheon
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Good May best
Excellent June best
Excellent July
Wet August
Wet September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -5°C | -3°C / -10°C | 3days (18 mm) Excellent | 7.6h Good | 61% Muggy | 2.7 Moderate | Poor | View Details |
| February | 4°C / -4°C | -1°C / -8°C | 4days (24 mm) Good | 8.3h Good | 64% Muggy | 3.6 Moderate | Poor | View Details |
| March | 10°C / 2°C | 7°C / -2°C | 5days (36 mm) Good | 9.2h Good | 72% Muggy | 5.1 High | Poor | View Details |
| April | 15°C / 7°C | 14°C / 5°C | 6days (58 mm) Good | 9.4h Good | 73% Muggy | 5.8 High | Good | View Details |
| May best | 20°C / 13°C | 20°C / 12°C | 8days (99 mm) Wet | 10h Excellent | 77% Humid | 6.1 High | Excellent | View Details |
| June best | 25°C / 18°C | 27°C / 19°C | 8days (108 mm) Wet | 9.9h Good | 81% Humid | 6.9 High | Excellent | View Details |
| July | 28°C / 23°C | 32°C / 26°C | 15days (264 mm) Wet | 8.4h Good | 87% Very Muggy | 6.6 High | Wet | View Details |
| August | 29°C / 24°C | 33°C / 27°C | 14days (228 mm) Wet | 8.7h Good | 84% Humid | 6.5 High | Wet | View Details |
| September best | 25°C / 19°C | 27°C / 20°C | 9days (145 mm) Wet | 8.2h Good | 79% Humid | 5.2 High | Excellent | View Details |
| October | 18°C / 11°C | 17°C / 10°C | 7days (72 mm) Good | 7.9h Good | 74% Muggy | 4.1 Moderate | Good | View Details |
| November | 11°C / 4°C | 8°C / 0°C | 6days (45 mm) Good | 7.6h Good | 71% Muggy | 3.1 Moderate | Fair | View Details |
| December | 3°C / -4°C | -1°C / -8°C | 5days (27 mm) Good | 7.3h Good | 64% Muggy | 2.4 Moderate | Poor | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: 2°C / -5°C . Feb: 4°C / -4°C . Mar: 10°C / 2°C . Apr: 15°C / 7°C . May: 20°C / 13°C . Jun: 25°C / 18°C . Jul: 28°C / 23°C . Aug: 29°C / 24°C . Sep: 25°C / 19°C . Oct: 18°C / 11°C . Nov: 11°C / 4°C . Dec: 3°C / -4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 18 mm. Feb: 24 mm. Mar: 36 mm. Apr: 58 mm. May: 99 mm. Jun: 108 mm. Jul: 264 mm. Aug: 228 mm. Sep: 145 mm. Oct: 72 mm. Nov: 45 mm. Dec: 27 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 61%. Feb: 64%. Mar: 72%. Apr: 73%. May: 77%. Jun: 81%. Jul: 87%. Aug: 84%. Sep: 79%. Oct: 74%. Nov: 71%. Dec: 64%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 18 km/h . Mar: 18 km/h . Apr: 19 km/h . May: 19 km/h . Jun: 17 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 15 km/h . Oct: 16 km/h . Nov: 17 km/h . Dec: 17 km/h .
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 3°C . Feb: 3°C . Mar: 6°C . Apr: 11°C . May: 17°C . Jun: 23°C . Jul: 28°C . Aug: 30°C . Sep: 27°C . Oct: 21°C . Nov: 15°C . Dec: 8°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Incheon has a population of approximately 3M.
The best months to visit Incheon are May, June, September, when temperatures are pleasant and rainfall is lower.
Incheon receives approximately 1124mm of rainfall annually across 90 rainy days.
Incheon is located in South Korea, in the Asia region.