Daejeon Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Daejeon.
Climate overview of Daejeon
Daejeon, Chungcheongbuk-Do, South Korea, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in August, while winters cool to 5°C (41°F) in January.
With around 1157 mm (46 in) of annual rain/snowfall, Daejeon has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct dry season from December to February, with very warm summers and cold winters. The wettest month is July. The most sunshine falls in May, with an average of 7.5 hours of daily sunshine.
Daejeon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Daejeon - and find the best time to visit.
Monthly Temperature in Daejeon
Depending on the time of the year, temperatures range from very warm to chilly in Daejeon. Average daytime temperatures reach a very warm 31°C (88°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 5°C (41°F).
At night, temperatures range from around 22°C (72°F) in August to -5°C (23°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Daejeon
Daejeon has a relatively rain/snowy climate with high precipitation levels, averaging 1157 mm (46 in) of rain/snowfall annually. Daejeon can be quite wet during July, receiving approximately 242 mm (9.5 in) of precipitation over 15 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 28 mm (1.1 in) of precipitation spread across 9 snowy/rainy days. For more details, please visit our Daejeon Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Daejeon
Daejeon experiences moderate variation in sunshine hours across the seasons. With 7.5 hours daily sunshine in May, it dips to 4.7 hours in July, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Daejeon by Month
The city experiences its highest humidity in January, reaching 6358%. In March, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Daejeon
The mean wind speed varies between () and () throughout the year. It is lowest in January, February, March, April, May, June, July, August, September, October, November and December and highest during January, February, March, April, May, June, July, August, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Daejeon
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May and October
- Warmest weather: July and August
- Most sunshine: May
- Fewest rainy days: February, March, May and October
- Wettest months: June, July, August and September, when rainfall is highest.
- Seasonal pattern: A distinct dry season from December to February, with very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Daejeon
What is the best time to visit Daejeon?
April, May and October typically offer the most optimal weather in Daejeon. In contrast, February, July and August tend to have less optimal conditions. Daejeon has a distinct dry season from December to February, with very warm summers and cold winters.
What temperatures can I expect in Daejeon?
Daytime highs range from 5°C (41°F) in January to 31°C (88°F) in August. Nighttime lows range from -5°C (23°F) to 22°C (72°F). Temperatures vary considerably through the year.
How much rain does Daejeon get?
Annual rainfall is around 1157 mm (46 in). July is the wettest month with 242 mm (9.5 in), while January is the driest with 28 mm (1.1 in).
How sunny is Daejeon?
Daejeon receives around 2,150 hours of sunshine per year. May is the sunniest month with 225 hours, while July is the cloudiest with just 142 hours. Overall, Daejeon enjoys abundant sunshine.
Daejeon 3-Day Forecast
Daejeon on the map
Daejeon is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.