August weather forecast
Incheon, South Korea

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Weather in August

August comes burdensome with the continuation of high heat, intense humidity, and frequent rainfall. The frequency of rainfall reduces slightly compared to July while the temperatures slightly increase. High relative humidity becomes the norm during this month, increasing the discomfort in the city. On the plus side, the number of hours of daylight begins to decline at a slow pace. The sea, maintaining its warm temperatures, continues to be a coastal city's solace.

Temperature

In Incheon, the peak average temperatures are observed in August, with a high of 29°C (84.2°F) and a low of 22.4°C (72.3°F).

Heat index

The heat index value during August is computed to be a very hot 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in August is 79.1%.

Rainfall

In August, the rain falls for 12.5 days. Throughout August, 286mm (11.26") of precipitation is accumulated. Throughout the year, there are 101.9 rainfall days, and 1235mm (48.62") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 23.4°C (74.1°F).
Note: While a person's sensitivity to cold is personal, factors like sunshine, wind, and the temperature can influence their comfort in 23.4°C (74.1°F) waters. Olympians, for perspective, swim in waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

In Incheon, South Korea, the average length of the day in August is 13h and 35min.
On the first day of the month, sunrise is at 05:37 and sunset at 19:41. On the last day of August, sunrise is at 06:02 and sunset at 19:04 KST.

Sunshine

In August, the average sunshine is 6.2h.

Frequently asked questions

What are the warmest months?

August registers as the month with the average highest temperatures, reaching 29°C (84.2°F) at its peak and 22.4°C (72.3°F) at the lowest.

How hot does it get in August?

In August, the average high-temperature and low-temperature are 29°C (84.2°F) and 22.4°C (72.3°F) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 35°C (95°F).

What is the average humidity in August?

The average relative humidity in August is 79.1%.

How many days does it rain in August?

In Incheon, during August, the rain falls for 12.5 days and regularly aggregates up to 286mm (11.26") of precipitation.

What month is the sea warmest in Incheon?

The month with the warmest seawater is August, with an average sea temperature of 23.4°C (74.1°F).

What is the water temperature in August?

In Incheon, in August, the average water temperature is 23.4°C (74.1°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.4°C (74.1°F) water may be enjoyable.

What is the average length of the day in August?

In August, the average day length is 13h and 35min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 05:37 and sunset at 19:41. On the last day of the month, sunrise is at 06:02 and sunset at 19:04 KST.

How many hours of sunshine does Incheon have in August?

The average sunshine duration in August is 6.2h.

Average temperature in August
Incheon, South Korea

Average temperature in August - Incheon, South Korea
  • Average high temperature in August: 29°C

The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (1.7°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 (-5.4°C).

Average humidity in August
Incheon, South Korea

Average humidity in August - Incheon, South Korea
  • Average humidity in August: 79.1%

The month with the highest relative humidity is July (82.2%).
The month with the lowest relative humidity is January (61.5%).

Average rainfall in August
Incheon, South Korea

Average rainfall in August - Incheon, South Korea
  • Average rainfall in August: 285.8mm

The wettest month (with the highest rainfall) is July (319.6mm).
The driest month (with the least rainfall) is December (19.3mm).

Average rainfall days in August
Incheon, South Korea

Average rainfall days in August - Incheon, South Korea
  • Average rainfall days in August: 12.5 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is February (5.3 days).

Average sea temperature in August
Incheon, South Korea

Average sea temperature in August - Incheon, South Korea
  • Average sea temperature in August: 23.4°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (3.3°C).

Average daylight in August /
Average sunshine in August
Incheon, South Korea

Average daylight in August / Average sunshine in August - Incheon, South Korea
  • Average daylight in August: 13h and 4min

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 August: 6h and 1min

The month with the most sunshine is May (Average sunshine: 7h and 30min).
The month with the least sunshine is July (Average sunshine: 5h and 6min).

Incheon, South Korea

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