Cheonan Weather in January
Thinking of visiting Cheonan in January? Expect low temperatures reaching 4°C (39°F) during the day, dropping to -5°C (23°F) at night, with the driest conditions of the year.
Rainfall in Cheonan in January
This month is a reliable choice for exploring, with the driest conditions of the year, even if you'll need to dress for cooler weather. Typically, you can expect about 9 days of snow/rain this month, with 25 mm (1 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Cheonan in January
January in Cheonan brings low temperatures, with highs of 4°C (39°F) and nights around -5°C (23°F). January is known for being in the winter season. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. At -5°C (23°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. The coldest month of the year calls for plenty of warm layers. Be sure to pack your winter gear.
Sunshine in Cheonan in January
The month experiences a moderate amount of sunlight, with 173 hours of sunshine. This provides a nice balance between sunshine and clouds.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Cheonan. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Cheonan's climate page.
Cheonan Temperature in January
Min Temperature
-5°C (23°F)
Max Temperature
4°C (39°F)
Chance of Rain
30%
Precipitation
25 mm (1 in)
Rainy days
9 days
Humidity
71%
Sunshine
173 hours
Percentage Sunshine
54%
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Cheonan typically stay consistent throughout January, with daily highs averaging around 4°C (39°F). Nights are very cold, with lows typically ranging from -9°C (16°F) to -6°C (21°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Cheonan in January
Browse day-by-day weather records for Cheonan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cheonan historical weather extremes in January
Our historical data for Cheonan spans 1976 to 2025, revealing these weather extremes.
- The hottest January day on record in Cheonan reached 16°C (61°F) (January 14, 2002).
Best Places in South Korea in January
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in January →
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What to Wear in Cheonan in January
Dress warmly and in layers for your trip to Cheonan in January. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Light rain is possible, so consider bringing a small umbrella or rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Cheonan in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Cheonan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Cheonan climate overview or explore weather in South Korea.
