June showcases the arrival of summer in
Seoul, with hot, humid, and rainy conditions becoming the norm. People can be seen enjoying ice creams and cold drinks to ward off the heat. Nature enthusiasts will appreciate the lush greenery in parks and along the Han River. Pre-monsoon showers become more frequent, finally culminating into peak monsoon in
July. June experiences 14.7 hours of daylight, the longest throughout the year.
Temperature
With the onset of June, Seoul's weather sees a minor temperature rise, transitioning from a warm 23°C (73.4°F) in
May to a still moderately hot 27.1°C (80.8°F). Seoul records an average low-temperature of 18.2°C (64.8°F) throughout the month of June.
Heat index
The heat index for June is computed to be 29°C (84.2°F). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In Seoul, the average relative humidity in June is 68.1%.
Rainfall
In Seoul,
South Korea, during June, the rain falls for 9.9 days and regularly aggregates up to 133mm (5.24") of precipitation. Throughout the year, there are 108.8 rainfall days, and 1451mm (57.13") of precipitation is accumulated.
Daylight
June has the longest days of the year, with an average of 14h and 42min of daylight.
On the first day of June in Seoul, sunrise is at 05:12 and sunset at 19:47. On the last day of the month, sunrise is at 05:14 and sunset at 19:57 KST.
Sunshine
The average sunshine in June is 6.1h.
UV index
The average daily maximum UV index in June is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: During June, 9 as the daily maximum UV index converts into the following advice:
Always remain cautious. Unprotected skin and eyes are prone to swift harm. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. For optimal sun protection, use sunscreen of no less than 30 SPF. This not only prevents sunburn but also reduces radiation damage.