Incheon weather in January
January in Incheon: cold, dry — one of the weakest months to visit.
#12 of 12 months in Incheon · #753 of 897 destinations to visit in January · comfort 49/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Incheon in January
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Incheon climate normals — January
| Daytime high | 2°C / 36°F | 🧥 cold |
|---|---|---|
| Nighttime low | -5°C / 22°F | |
| Rainfall | 25 mm / 1 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 59% | 🍃 comfortable |
| Dew point | -10°C / 15°F | |
| Sunshine | 7.7 h/day | |
| Daylight | 9.9 h | |
| Wind | 17 km/h / 10 mph | |
| Snowfall | 2.2 cm / 0.9 in | |
| 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 January — FAQ
- Is January a good time to visit Incheon?
- January in Incheon: cold, dry — one of the weakest months to visit. It ranks #12 of 12 months for Incheon on SeasonMap's comfort score (49/100).
- What is the weather like in Incheon in January?
- In January, Incheon averages a daily high of 2.2°C and a low of -5.3°C, with about 24.7 mm of rain over roughly 3.2 rainy days.
- What is the air quality in Incheon in January?
- Incheon has a mean US Air Quality Index of about 92 in January.
- Does it snow in Incheon in January?
- Incheon sees roughly 2.2 cm of snowfall in January.