Asan Weather in January
January in Asan brings low temperatures around 4°C (39°F) during the day, dropping to -5°C (23°F) at night, with the driest conditions of the year.
Rainfall in Asan in January
Expect the least amount of rain this month, making it a good opportunity for outdoor activities, even though days are on the cooler side. Looking at the last 30 years, the data shows about 9 days with snow/rain, averaging 25 mm (1 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Asan in January
January in Asan brings low temperatures, with highs of 4°C (39°F) and nights around -5°C (23°F). During January, you'll experience the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. With lows of -5°C (23°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. It's generally the coldest month of the year, making it essential to pack warm layers and winter accessories.
Sunshine in Asan in January
The area enjoys a balanced 173 hours of sunlight, ensuring it's neither too overcast nor too sunny.January in Asan has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
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 Asan's climate page.
Asan Temperature in January
Min Temperature
-5°C (23°F)
Max Temperature
4°C (39°F)
Chance of Rain
31%
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 Asan 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 Asan in January
Browse day-by-day weather records for Asan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Asan historical weather extremes in January
The extremes listed below come from historical weather data collected in Asan from 1976 through 2025.
- The hottest January day on record in Asan 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 →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Asan in January
Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Pack a light rain jacket or compact umbrella for occasional showers. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Asan 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 Asan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Asan climate overview or explore weather in South Korea.
