July weather forecast
Seoul, South Korea

The Dongdaemun Gate in Seoul city, South Korea
The Dongdaemun Gate in Seoul city, South Korea

Weather in July

July, like June, in Seoul, South Korea, is a moderately hot summer month, with average temperature varying between 21.9°C (71.4°F) and 28.6°C (83.5°F).

Temperature

In July, the average high-temperature is essentially the same as in June - a still moderately hot 28.6°C (83.5°F). In July, the average low-temperature is 21.9°C (71.4°F).

Heat index

The average heat index is evaluated at a hot 33.3°C (91.9°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

With an average relative humidity of 78.3%, July is the most humid month.

Rainfall

The month with the most rainfall is July when the rain falls for 16.3 days and typically aggregates up to 394.7mm (15.54") of precipitation.

Daylight

In July, the average length of the day is 14.5h.

Sunshine

The month with the least sunshine is July, with an average of 3.9h of sunshine.

UV index

With an average maximum UV index of 10, July is the month with the highest UV index. A UV Index of 8 to 10 symbolizes a very high health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 10 transform into the following instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.
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FAQ

What is the temperature in July in Seoul?

In Seoul, South Korea, in July, the average high-temperature is 28.6°C (83.5°F), and the average low-temperature is 21.9°C (71.4°F). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 33.3°C (91.9°F).

What is the most humid month in Seoul?

The most humid month in Seoul, South Korea, is July, with an average relative humidity of 78.3%.

What is the average humidity in July in Seoul?

In Seoul, the average relative humidity in July is 78.3%.

What is the wettest month in Seoul?

The month with the most rainfall is July when the rain falls for 16.3 days and typically aggregates up to 394.7mm (15.54") of precipitation.

How many days does it rain in July in Seoul?

In Seoul, in July, during 16.3 rainfall days, 394.7mm (15.54") of precipitation is typically accumulated.

How many hours of daylight does Seoul have in July?

In July, the average length of the day in Seoul is 14.5h.

What is the month with the least sunshine in Seoul?

With an average of 3.9h of sunshine, July has the least sunshine of the year in Seoul, South Korea.

How many hours of sunshine does Seoul have in July?

In July, the average sunshine is 3.9h.

When is the highest UV index in Seoul?

With an average maximum UV index of 10, July is the month with the highest UV index in Seoul, South Korea.

What is the UV index intensity in July in Seoul?

In July, the average daily maximum UV index in Seoul is 10. A UV Index reading of 8 to 10 represents a very high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in July
Seoul, South Korea

Average temperature in July - Seoul, South Korea
  • Average high temperature in July: 28.6°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (1.5°C).

  • Average low temperature in July: 21.9°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (-5.9°C).

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Average humidity in July
Seoul, South Korea

Average humidity in July - Seoul, South Korea
  • Average humidity in July: 78.3%

The month with the highest relative humidity is July (78.3%).
The month with the lowest relative humidity is April (56.2%).

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Average rainfall in July
Seoul, South Korea

Average rainfall in July - Seoul, South Korea
  • Average rainfall in July: 394.7mm

The wettest month (with the highest rainfall) is July (394.7mm).
The driest month (with the least rainfall) is January (20.8mm).

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Average rainfall days in July
Seoul, South Korea

Average rainfall days in July - Seoul, South Korea
  • Average rainfall days in July: 16.3 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (5.8 days).

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Average daylight in July /
Average sunshine in July
Seoul, South Korea

Average daylight in July / Average sunshine in July - Seoul, South Korea
  • Average daylight in July: 14.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in July: 3.9h

The month with the most sunshine is May (Average sunshine: 6.9h).
The month with the least sunshine is July (Average sunshine: 3.9h).

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Average UV index in July
Seoul, South Korea

Average UV index in July - Seoul, South Korea
  • Average UV index in July: 10

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).

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