Incheon weather in April
April in Incheon: cool, a little rain — an excellent time to visit.
#3 of 12 months in Incheon · #376 of 897 destinations to visit in April · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Incheon in April
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Incheon climate normals — April
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 7°C / 45°F | |
| Rainfall | 50 mm / 2 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 13.2 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 92 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Incheon in April — FAQ
- Is April a good time to visit Incheon?
- April in Incheon: cool, a little rain — an excellent time to visit. It ranks #3 of 12 months for Incheon on SeasonMap's comfort score (82/100).
- What is the weather like in Incheon in April?
- In April, Incheon averages a daily high of 15°C and a low of 7.1°C, with about 49.6 mm of rain over roughly 5.4 rainy days.
- What is the air quality in Incheon in April?
- Incheon has a mean US Air Quality Index of about 92 in April.