Daejeon Weather in December
During December, Daejeon experiences low daytime temperatures of 7°C (45°F) and cooler nights around -3°C (27°F). As part of the winter season, some snow/rainfall is to be expected.
Rainfall in Daejeon in December
Typically around 9 days of snow/rainfall are expected, averaging 28 mm (1.1 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Daejeon in December
If you're visiting Daejeon in December, expect highs of 7°C (45°F) and overnight lows around -3°C (27°F). December marks the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights are well below freezing at -3°C (27°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation.
Sunshine in Daejeon in December
The area enjoys a balanced 165 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Daejeon in December
Average wind conditions reach () in December. This results in mostly calm, still weather and is ideal for most activities. While this is an average, conditions can vary slightly from completely calm to occasionally breezy days.If you prefer dry days with pleasant temperatures, April, May and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Daejeon's climate page.
Daejeon Temperature in December
Min Temperature
-3°C (27°F)
Max Temperature
7°C (45°F)
Chance of Rain
30%
Precipitation
28 mm (1.1 in)
Rainy days
9 days
Humidity
66%
Windspeed
()
Sunshine
165 hours
Percentage Sunshine
53%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Daejeon typically drop from around 8°C (46°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 -3°C (27°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 Daejeon in December
Browse day-by-day weather records for Daejeon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Daejeon historical weather extremes in December
Our historical data for Daejeon spans 1976 to 2025, revealing these weather extremes.
- The warmest day in December was on December 9, 2023, with a maximum of 20°C (68°F).
- Nighttime temperatures dropped to -20°C (-4°F) on December 27, 1980, marking the coldest December night on record.
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
poor
What to Wear in Daejeon in December
Dress warmly and in layers for your trip to Daejeon 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Daejeon 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 Daejeon's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Daejeon climate overview or explore weather in South Korea.
