August weather forecast and climate
Seoul, South Korea

The colorful lit cityscape of Seoul city, South Korea, with the perfect view of the Dongdaemun Gate
The colorful lit cityscape of Seoul city, South Korea, with the perfect view of the Dongdaemun Gate
August withstands the worst of the wet monsoon weather in Seoul with heavy rain and overcast skies. The daily sunlight is to the tune of 5 hours, and the average temperatures are in the hot 22.2°C (72°F) to 29.4°C (84.9°F) range.
The humidity adds to the feeling of heat as the rainfall crosses 363.2mm (14.3"). August is prone to thunderstorms and typhoons, and almost every day is wet. The summer sun is intense when it breaks the cloud covers during short periods.
August is an avoidable time for visiting Seoul, even though there are many indoor attractions to entertain people.

What is the warmest month in Seoul?

The warmest month in Seoul is August, with an average high-temperature of 29.6°C (85.3°F) and an average low-temperature of 22.4°C (72.3°F).

What is the temperature in August in Seoul?

In August, the average high-temperature is 29.6°C (85.3°F), and the average low-temperature is 22.4°C (72.3°F).

What is the average humidity in August in Seoul?

In Seoul, South Korea, the average relative humidity in August is 75.6%.

How many days does it rain in August in Seoul?

In August, in Seoul, South Korea, the rain falls for 14.6 days. Throughout August, 364.2mm (14.3") of precipitation is accumulated.

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

The average length of the day in August in Seoul, South Korea, is 13.6h.

How long on average sun shines in August in Seoul?

In Seoul, the average sunshine in August is 4.9h.

How high is the UV index in August in Seoul?

In August, the average daily maximum UV index in Seoul, South Korea, is 9. A UV Index reading of 8 to 10 represents a very high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in August - Seoul, South Korea
  • Average high temperature in August: 29.6°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 August: 22.4°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).

Average humidity in August - Seoul, South Korea
  • Average humidity in August: 75.6%

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

Average rainfall in August - Seoul, South Korea
  • Average rainfall in August: 364.2mm

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

Average rainfall days in August - Seoul, South Korea
  • Average rainfall days in August: 14.6 days

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

Average daylight in August / Average sunshine in August - Seoul, South Korea
  • Average daylight in August: 13.6h

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

  • Average sunshine in August: 4.9h

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

Average UV index in August - Seoul, South Korea
  • Average UV index in August: 9

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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