Asan Weather in December
December in Asan brings low temperatures, with daytime highs of 6°C (43°F) and nights around -3°C (27°F). Expect around 28 mm (1.1 in) of snow/rainfall during the month.
Rainfall in Asan in December
Climate statistics over the past 30 years suggest around 10 days of snow/rain, with 28 mm (1.1 in) average for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Asan in December
In December, expect low temperatures in Asan, with highs of 6°C (43°F) and lows of -3°C (27°F) at night. This month falls in the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop below freezing to -3°C (27°F). An extra blanket is worth packing if you're unsure about the heating where you're staying.
Sunshine in Asan in December
The city usually sees around 159 hours of sunlight, indicating a moderately sunny period.If your ideal day consists of dry skies and pleasant temperatures, April, May and October typically offer the best circumstances for Asan.
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 December
Min Temperature
-3°C (27°F)
Max Temperature
6°C (43°F)
Chance of Rain
32%
Precipitation
28 mm (1.1 in)
Rainy days
10 days
Humidity
72% *
Sunshine
159 hours *
Percentage Sunshine
53% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Asan typically drop from around 7°C (45°F) at the start of December to approximately 3°C (37°F) by the end. Nights are very cold, with lows typically ranging from -8°C (18°F) to -2°C (28°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Asan in December
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 December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Asan.
- The warmest day in December was on December 9, 2023, with a maximum of 19°C (66°F).
- Asan registered its coldest December night on December 27, 1980, with temperatures dropping to -20°C (-4°F).
Best Places in South Korea in December
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 December →
perfect weather
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tolerable
unpleasant
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What to Wear in Asan in December
Dress warmly and in layers for your trip to Asan in December. 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. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Asan in December
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.
