Ansan Weather in January
Ansan in January sees low temperatures, with highs around 3°C (37°F) and overnight lows of -4°C (25°F). It's the driest month of the year, with very little snow/rainfall to worry about.
Rainfall in Ansan in January
As the driest month, it's a good time for hiking and exploring the area, even if you'll need to layer up. Based on our climate data of the past 30 years, about 8 days of snow/rain are anticipated, with 24 mm (0.9 in) on average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Ansan in January
Daytime temperatures in Ansan reach 3°C (37°F) in January, dropping to -4°C (25°F) at night. January is a notable month of the winter season. Expect a distinctly cold feel throughout the day, not just overnight. Nights are well below freezing at -4°C (25°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. It's generally the coldest month of the year, making it essential to pack warm layers and winter accessories.
Sunshine in Ansan in January
The month experiences a moderate amount of sunlight, with 188 hours of sunshine. This provides a nice balance between sunshine and clouds.January in Ansan 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 Ansan's climate page.
Ansan Temperature in January
Min Temperature
-4°C (25°F)
Max Temperature
3°C (37°F)
Chance of Rain
25%
Precipitation
24 mm (0.9 in)
Rainy days
8 days
Humidity
60% *
Sunshine
188 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Ansan typically stay consistent throughout January, with daily highs averaging around 3°C (37°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 Ansan in January
Browse day-by-day weather records for Ansan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ansan historical weather extremes in January
Based on weather observations in Ansan between 1976 and 2025, these are the recorded extremes during January.
- The warmest day in January was on January 14, 2002, with a maximum of 15°C (59°F).
- Ansan experienced its chilliest January day on January 15, 2001, reaching only -11°C (12°F).
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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unpleasant
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What to Wear in Ansan in January
We recommend to layer up for chilly conditions in Ansan in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Some rain is possible, so pack something to handle light showers. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Ansan 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 Ansan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ansan climate overview or explore weather in South Korea.
