Incheon weather in October
October in Incheon: nice, a little rain, with very humid — one of the best months to visit.
#2 of 12 months in Incheon · #258 of 897 destinations to visit in October · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Incheon in October
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Incheon climate normals — October
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Rainfall | 58 mm / 2.3 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 10°C / 49°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 11.2 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 78 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Incheon in October — FAQ
- Is October a good time to visit Incheon?
- October in Incheon: nice, a little rain, with very humid — one of the best months to visit. It ranks #2 of 12 months for Incheon on SeasonMap's comfort score (85/100).
- What is the weather like in Incheon in October?
- In October, Incheon averages a daily high of 18.2°C and a low of 11.1°C, with about 58.4 mm of rain over roughly 5.6 rainy days.
- What is the air quality in Incheon in October?
- Incheon has a mean US Air Quality Index of about 78 in October.