Daejeon - When to Visit

When to Visit Daejeon

Climate guide & best times to travel

Monthly Climate Data for Daejeon Average temperature and rainfall by month Climate Overview -10°C 1°C 12°C 23°C 35°C Rainfall (mm) 0 153 307 Jan Jan: 4.0°C high, -5.0°C low, 25mm rain Feb Feb: 7.0°C high, -3.0°C low, 38mm rain Mar Mar: 12.0°C high, 1.0°C low, 51mm rain Apr Apr: 19.0°C high, 6.0°C low, 81mm rain May May: 24.0°C high, 12.0°C low, 91mm rain Jun Jun: 27.0°C high, 18.0°C low, 168mm rain Jul Jul: 29.0°C high, 22.0°C low, 307mm rain Aug Aug: 30.0°C high, 22.0°C low, 300mm rain Sep Sep: 26.0°C high, 17.0°C low, 152mm rain Oct Oct: 20.0°C high, 9.0°C low, 58mm rain Nov Nov: 13.0°C high, 2.0°C low, 48mm rain Dec Dec: 6.0°C high, -3.0°C low, 30mm rain Temperature Rainfall
Daejeon experiences a humid continental climate with four distinct seasons, characterized by cold, dry winters and hot, humid summers with significant monsoon rainfall. The city follows a typical East Asian monsoon pattern, with over 70% of annual precipitation concentrated in the summer months of June through September. Winter temperatures drop well below freezing with minimal precipitation, while summer brings intense heat and heavy rainfall, particularly in July and August when monthly precipitation exceeds 11 inches. The transitional seasons of spring and fall offer the most comfortable weather conditions, with moderate temperatures and relatively low rainfall. Spring sees a gradual warming from March through May, while autumn provides pleasant cooling temperatures with beautiful weather for outdoor activities. The consistent 70% humidity throughout the year, combined with the dramatic seasonal temperature variations from winter lows in the 20s°F to summer highs in the mid-80s°F, creates distinct seasonal experiences that significantly impact travel planning.

Best Time to Visit

Beach & Relaxation
June through August offer the warmest temperatures (82-86°F), though expect heavy rainfall and high humidity during the monsoon season.
Cultural Exploration
April through May and September through October provide comfortable temperatures (66-79°F) with moderate rainfall, ideal for sightseeing and outdoor cultural activities.
Adventure & Hiking
May and September through October offer the best conditions with pleasant temperatures (69-79°F) and manageable rainfall levels for outdoor adventures.
Budget Travel
December through February provide the lowest tourist crowds despite cold temperatures, while avoiding the expensive peak summer season.

Month-by-Month Guide

January

January is the coldest month with freezing temperatures and minimal rainfall. Expect clear, dry conditions but bundle up for the bitter cold with temperatures dropping to 22°F at night. Snow is possible though precipitation remains very low at just 1.0 inch.

39°F High
22°F Low
1.0 inches Rainfall
Low Crowds
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February

February remains very cold but shows the first signs of winter's end with slightly warmer days. Temperatures begin their gradual climb while rainfall increases modestly to 1.5 inches. Conditions remain predominantly dry and cold with occasional winter storms.

44°F High
25°F Low
1.5 inches Rainfall
Low Crowds
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March

March marks the beginning of spring with noticeably warmer temperatures and the start of the growing season. Days reach a pleasant 54°F while nights remain cool at 33°F. Rainfall increases to 2.0 inches as spring weather patterns begin to establish.

54°F High
33°F Low
2.0 inches Rainfall
Medium Crowds
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April

April brings beautiful spring weather with comfortable temperatures and moderate rainfall. Daytime highs reach 66°F while nights warm to 44°F, creating ideal conditions for outdoor activities. The 3.2 inches of rainfall supports lush spring growth and blooming flowers.

66°F High
44°F Low
3.2 inches Rainfall
Medium Crowds
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May

May offers some of the year's most pleasant weather with warm days and mild nights. Temperatures reach a comfortable 76°F during the day and 55°F at night. Rainfall increases slightly to 3.6 inches as the pre-monsoon season approaches, but conditions remain generally favorable.

76°F High
55°F Low
3.6 inches Rainfall
High Crowds
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June

June marks the beginning of the monsoon season with significantly increased rainfall reaching 6.6 inches. Temperatures climb to 82°F during the day with warm nights at 64°F. Expect frequent rain showers and high humidity as summer weather patterns establish.

82°F High
64°F Low
6.6 inches Rainfall
Medium Crowds
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July

July is the peak of monsoon season with intense rainfall totaling 12.1 inches and hot, humid conditions. Temperatures reach 85°F during the day and remain warm at 71°F at night. Expect frequent heavy downpours, thunderstorms, and very high humidity levels.

85°F High
71°F Low
12.1 inches Rainfall
High Crowds
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August

August continues the intense monsoon pattern with the year's highest temperatures and second-highest rainfall at 11.8 inches. Days reach 86°F with warm nights at 72°F. The combination of extreme heat, heavy rainfall, and high humidity creates challenging but dramatically lush conditions.

86°F High
72°F Low
11.8 inches Rainfall
High Crowds
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September

September begins the transition to fall with decreasing rainfall (6.0 inches) and slightly cooler temperatures. Days remain warm at 79°F while nights cool to 62°F. The monsoon season starts to weaken, offering more pleasant conditions than the peak summer months.

79°F High
62°F Low
6.0 inches Rainfall
Medium Crowds
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October

October delivers beautiful autumn weather with comfortable temperatures and significantly reduced rainfall at just 2.3 inches. Days reach a pleasant 69°F while nights cool to 48°F. This is one of the most comfortable months with clear skies and ideal conditions for outdoor activities.

69°F High
48°F Low
2.3 inches Rainfall
High Crowds
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November

November continues the pleasant fall weather with cooling temperatures and low rainfall. Days reach 56°F while nights drop to 37°F, signaling the approach of winter. With only 1.9 inches of rainfall, conditions remain dry and comfortable for exploring the city.

56°F High
37°F Low
1.9 inches Rainfall
Medium Crowds
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December

December marks the beginning of winter with cold temperatures and minimal rainfall at 1.2 inches. Days reach only 43°F while nights drop to 25°F, approaching freezing conditions. The dry weather continues but warm clothing becomes essential for outdoor activities.

43°F High
25°F Low
1.2 inches Rainfall
Low Crowds
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