Climate and monthly weather forecast
Daejeon, South Korea

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The climate of Daejeon

Daejeon, South Korea, falls under the Humid continental climate with no dry season and hot summer according to the Köppen climate classification. This predominantly Dfa classified zone situates in the temperate region where the latitude has a significant influence on weather conditions.

The city encounters substantial fluctuations in the atmospheric parameters throughout the year, with temperatures varying widely. Maximum temperatures fluctuate from 1.3°C (34.3°F) in January to a peak of 28.9°C (84°F) in August. Similarly, low temperatures range from a biting -6.1°C (21°F) in January to a warm 20.1°C (68.2°F) in August. Such broad-ranging temperatures identify this region with a significant difference between the warmest and coldest months.

Observing the rainfall trends, Daejeon receives uneven precipitation throughout the year, with the rainiest month being July, with a substantial 175mm (6.89"). Conversely, the driest months are January and December, recording a modest 17mm (0.67") and 23mm (0.91"), respectively. Uniquely, snowfall patterns in Daejeon reveal observable falls in the cold months from December to February, particularly in January and December, with 28mm (1.1") and 40mm (1.57") respectively.

The best time to visit Daejeon

Considering the weather parameters' differing magnitudes throughout the year, the best period to visit Daejeon falls between the end of spring and the beginning of summer. This phase, extending from late May to early June, captures a blend of mild temperatures, averaging around 22.7°C (72.9°F) to 26.4°C (79.5°F), and reduced rainfall. This corresponds to less crowded tourist times, providing a serene and pleasant experience.

The worst time to visit Daejeon

Corresponding to the weather patterns, the unfavorable period to visit Daejeon extends between July and August. These months constitute the rainy season, characterized by high humidity levels averaging 86% and 84%, high rainfall - exceeding 100mm (3.94"), and the average high temperature reaching an uncomfortable 28.1°C (82.6°F) to 28.9°C (84°F).

Spring weather in Daejeon

Spring, in Daejeon, observes a gradual transition from chilly to moderate weather conditions. March experiences a minimum temperature of -0.8°C (30.6°F), shifting to a pleasant 10.4°C (50.7°F) maximum. As Spring progresses, by May, maximum temperatures increase to a comfortable 22.7°C (72.9°F), and minimums stand around 10.2°C (50.4°F).

Summer weather in Daejeon

Summer in Daejeon comprises hot and wet conditions. June marks the beginning of the summer with average maximum temperatures ranging from 26.4°C (79.5°F). July and August witness a further increase in temperature, averaging around 28.1°C (82.6°F) and 28.9°C (84°F) respectively. Additionally, these months experience a peak in rainfall, hitting its maximum in July with 175mm (6.89").

Autumn weather in Daejeon

Autumn in Daejeon serves a respite from the hot and wet summer. September brings a decline in temperature with the high temperature averaging around 24°C (75.2°F) and lows around 14.4°C (57.9°F). The reduce in rainfall is significant, with September experiencing an average of 82mm (3.23"), which further drops to 56mm (2.2") by October.

Winter weather in Daejeon

Winter in Daejeon generally is cold with low humidity. Temperatures take a sharp drop, with highs descending from 11.3°C (52.3°F) in November to 1.3°C (34.3°F) in January. The minimum temperature follows a similar trend, standing around -3.6°C (25.5°F) in January. This cold season is further characterized by an increase in snowfall, primarily in December and January, reporting 8mm (0.31") and 40mm (1.57"), respectively.

Weather in January

January in Daejeon, South Korea ushers in the cold of winter. Throughout this month, the chill in the air can be felt with average temperatures dipping to -6.1°C (21°F), the coldest of the year. In comparison to December's climate, the year starts with lesser daylight hours but compensates with increased sunshine days. Weather in January »

Weather in February

As the city moves from January to February, weather conditions show a slight easing of winter's grip. Temperatures marginally increase, signaling the slow departure of winter. Snowfall in the city reduces significantly in comparison to January. Weather in February »

Weather in March

March ushers in the early signs of Spring in Daejeon. The city transitions from the bitter cold to warmer temperatures, a considerable shift from the February weather. The occurrence of rainfall starts to surpass that of snow, painting the city with colors of Spring. Weather in March »

Weather in April

April in Daejeon signifies the full arrival of Spring, setting itself apart from the transition phase of March. Weather conditions in this month allow for more outdoor exploration, with natural landscapes in their colorful bloom. Weather in April »

Weather in May

May sees Daejeon transition towards the warmer months, marking significant leaps from the weather encountered in April. The taste of summer is felt as the city warms up, experiencing less rainfall compared to the Spring months. Days in May offers extended daylight hours, allowing for more activities under the sun. Weather in May »

Weather in June

As Daejeon steps into June, the city fully embraces the summer season. Distinct from May, the rise in temperatures coupled with high humidity can cause a great deal of discomfort. It's a time of the year when the weather can swing from intensely hot days to torrential downpours, due to the summer monsoon. Weather in June »

Weather in July

July in Daejeon is the city's peak summer month, distinctively different from the beginning of the season experienced in June. This month sees the highest rainfall in the year, with the monsoon season in full force. Amidst the rains and high humidity levels, the temperatures continue to soar. Weather in July »

Weather in August

August signifies the tail end of summer in Daejeon with conditions remarkably similar to July. Despite the downfall of rain tapering as the month progresses, it continues to be a wet month with high humidity levels. This South Korean city experiences the highest temperatures in this summer month. Weather in August »

Weather in September

September in Daejeon is a celebration of fall. The city transitions from the summer month of August to a milder climate. Days remain warm but are balanced with the cool breeze of the coming fall season. September marks a considerable decrease in rainfall, signaling the end of monsoon. Weather in September »

Weather in October

October is an excellent time to visit Daejeon as the city basks in the heart of the Fall. Distinct from September, this month brings a further drop in temperature, paving the way for crisp, cool days. October's weather makes it an ideal time for outdoor pursuits, with the city decorated in an array of autumnal hues. Weather in October »

Weather in November

November, in Daejeon, marks the beginning of the transition towards winter. A departure from October's climate, the month welcomes the early signs of winter chills. With a significant drop in temperature, the city bid farewell to the autumn warmth. Weather in November »

Weather in December

December thrives in winter weather, differing significantly from November. With temperatures plummeting further, Daejeon gets shrouded in a winter blanket. The first snowflakes make their appearance, preparing the city for a white new year. Weather in December »
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Frequently asked questions

What part of the year is the coldest in Daejeon?

January is the month that records the lowest temperatures in Daejeon, with averages ranging from a high of 1.3°C (34.3°F) to a low of -6.1°C (21°F).

What is the driest month in Daejeon?

January is the month with the least rainfall. Rain falls for 5.5 days and accumulates 17mm (0.67") of precipitation.

How many days does it rain in Daejeon?

Throughout the year, in Daejeon, there are 133.5 rainfall days, and 747mm (29.41") of precipitation is accumulated.

When does it snow in Daejeon?

January through April, November and December are months with snowfall in Daejeon, South Korea.

How much does it snow in Daejeon?

Throughout the year, in Daejeon, South Korea, there are 22.7 snowfall days, and 124mm (4.88") of snow is accumulated.

What are the months with the least sunshine in Daejeon?

The months with the least sunshine are January and December, with an average of 5.5h of sunshine.

What is the month with the lowest UV index in Daejeon?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Daejeon, South Korea.

What is the least humid month in Daejeon?

March is the least humid month, with an average relative humidity of 63%.

When it does not snow in Daejeon?

In Daejeon, South Korea, snow does not fall in May through October.

What month has the most sunshine in Daejeon?

The month with the most sunshine is May, with an average of 10h of sunshine.

When are the longest days in Daejeon?

June has the longest days of the year, with an average of 14h and 36min of daylight.

What are the months with the highest UV index in Daejeon?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the most humid month in Daejeon?

The most humid month is July, with an average relative humidity of 86%.

What is the wettest month in Daejeon?

The month with the most rainfall in Daejeon, South Korea, is July, when the rain falls for 23.3 days and typically aggregates up to 175mm (6.89") of precipitation.

What time of the year is the hottest in Daejeon?

Daejeon, South Korea, experiences its highest temperatures in August, with an average peak of 28.9°C (84°F) and a low of 20.1°C (68.2°F).

What is the snowiest month in Daejeon?

December is the month with the most snowfall. Snow falls for 8.1 days and accumulates 40mm (1.57") of snow.

What is the month with the shortest days in Daejeon?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Daejeon.

Is there Daylight Saving Time (DST) in Daejeon?

Daejeon, South Korea, does not utilize Daylight Saving Time (DST). KST timezone is used throughout the entire year.

Average temperature
Daejeon, South Korea

Average temperature - Daejeon, South Korea

The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is January (1.3°C).

The month with the highest average low temperature is August (20.1°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).

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Average pressure
Daejeon, South Korea

Average pressure - Daejeon, South Korea

The month with the highest atmospheric pressure is January (1025.2mbar).
The month with the lowest atmospheric pressure is July (1007.2mbar).

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Average wind speed
Daejeon, South Korea

Average wind speed - Daejeon, South Korea

The windiest month (with the highest average wind speed) is March (9.7km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).

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Average humidity
Daejeon, South Korea

Average humidity - Daejeon, South Korea

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (63%).

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Average rainfall
Daejeon, South Korea

Average rainfall - Daejeon, South Korea

The wettest month (with the highest rainfall) is July (175mm).
The driest month (with the least rainfall) is January (17mm).

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Average rainfall days
Daejeon, South Korea

Average rainfall days - Daejeon, South Korea

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (5.1 days).

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Average snowfall
Daejeon, South Korea

Average snowfall - Daejeon, South Korea

The month with the highest snowfall is December (40mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days
Daejeon, South Korea

Average snowfall days - Daejeon, South Korea

The month with the highest number of snowfall days is December (8.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Daejeon, South Korea

Average daylight / Average sunshine - Daejeon, South Korea

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The month with the most sunshine is May (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

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Average sunshine days
Daejeon, South Korea

Average sunshine days - Daejeon, South Korea

The month with the most sunshine days is October (22.5 days).
The month with the least sunshine days is July (6.2 days).

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Average UV index
Daejeon, South Korea

Average UV index - Daejeon, South Korea

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Daejeon, South Korea

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