July weather forecast
Seoul, South Korea

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

Weather in July

July is mostly characterized by Seoul's hot and humid conditions due to the monsoon season. Raincoats and umbrellas become essential items for residents and tourists alike. Despite the heat, traditional summer celebrations continue with enthusiasm. With a record rainfall of 395mm, July is the wettest month of the year. August carries on with the monsoon pattern, with high heat and humidity levels.

Temperature

Shifting into July, Seoul records an average high-temperature of a still warm 28.6°C, presenting minor fluctuations compared to the previous month. An average low-temperature of 21.9°C is noted during the nights in July.

Heat index

Throughout July, the heat index is computed to be a hot 33°C. Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Data suggests that the heat index is set for environments in shade and with a light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

The month with the most rainfall in Seoul is July, when the rain falls for 16.3 days and typically aggregates up to 395mm of precipitation.

Daylight

In July, the average length of the day is 14h and 28min.
On the first day of July in Seoul, South Korea, sunrise is at 05:14 and sunset at 19:57. On the last day of the month, sunrise is at 05:34 and sunset at 19:42 KST.

Sunshine

July has the least sunshine of the year, with an average of 3.9h of sunshine.

UV index

The month with the highest UV index is July, with an average maximum UV index of 10. A UV Index reading of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, an average UV index of 10 transforms into the following instructions:
Being unprotected puts skin and eyes at risk of rapid damage. Always be safe. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Minimize prolonged exposure to direct sunlight, especially for those who burn quickly. Use sunscreen with a minimum 30 SPF always.
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FAQ

How hot is July in Seoul?

The high-temperature in Seoul, South Korea, during July is 28.6°C and the low-temperature is 21.9°C. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 33°C.

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, South Korea, the average relative humidity in July is 78.3%.

What is the wettest month in Seoul?

July is the month with the most rainfall in Seoul. Rain falls for 16.3 days and accumulates 395mm of precipitation.

How much does it rain in Seoul in July?

In Seoul, in July, it is raining for 16.3 days, with typically 395mm of accumulated precipitation.

What is the average length of the day in July in Seoul?

The average day length in July in Seoul, South Korea, is 14h and 28min.

When is the sunrise / sunset in July in Seoul?

On the first day of July in Seoul, sunrise is at 05:14 and sunset at 19:57. On the last day of the month, sunrise is at 05:34 and sunset at 19:42 KST.

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.

How long on average sun shines in July in Seoul?

In July, the average sunshine duration in Seoul 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.

How high is the UV index in July in Seoul?

The average daily maximum UV index in July in Seoul is 10. A UV Index estimate of 8 to 10 represents a very high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average UV index

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: 14h and 3min

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

  • Average sunshine in July: 3h and 5min

The month with the most sunshine is May (Average sunshine: 6h and 54min).
The month with the least sunshine is July (Average sunshine: 3h and 54min).

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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).
The months with the lowest UV index are January and December (UV index 2).

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Seoul, South Korea

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