The hottest solar term, the great heat (대서), and Tuesday, 22nd, will see daytime highs reaching 34 degrees, continuing the scorching heat.
With heatwave warnings issued across most regions, the highest perceived temperatures in some areas will rise above 35 degrees, leading to extreme heat.
The morning low temperatures will range from 22 to 27 degrees, while the daytime highs will be between 29 and 34 degrees, slightly higher than average years. Tropical nights are expected in many places for the time being.
Occasional clouds are expected nationwide, with showers in most regions from morning until evening. In the metropolitan area and inland Gangwon, there may be droplets of rain less than 0.1㎜ from dawn to morning.
The expected rainfall from the showers is 5 to 60㎜ in inland Seoul, Gyeonggi, and Gangwon, as well as inland Daejeon, Sejong, Chungnam, Chungbuk, eastern Jeonnam, inland Jeonbuk, and inland Gyeongbuk, and 5 to 40㎜ in western Gyeongnam.
While the temperature will drop briefly due to the showers, after they cease, the high humidity will lead to a rise in temperature again during the day, resulting in sultry conditions.
The morning low temperatures in major areas are expected to be 26 degrees in Seoul, 25 degrees in Incheon, 25 degrees in Suwon, 24 degrees in Chuncheon, 27 degrees in Gangneung, 26 degrees in Cheongju, 24 degrees in Daejeon, 24 degrees in Jeonju, 25 degrees in Gwangju, 24 degrees in Daegu, 25 degrees in Busan, and 26 degrees in Jeju.
The daytime highs are forecasted to be 31 degrees in Seoul, 30 degrees in Incheon, 32 degrees in Suwon, 30 degrees in Chuncheon, 33 degrees in Gangneung, 33 degrees in Cheongju, 33 degrees in Daejeon, 33 degrees in Jeonju, 34 degrees in Gwangju, 34 degrees in Daegu, 31 degrees in Busan, and 32 degrees in Jeju.
The fine dust concentration will show 'good' levels across the country due to smooth atmospheric diffusion.
The sea waves will be 0.5 to 1.0 m in all adjacent seas including the East Sea, West Sea, and South Sea.
The wave height in the far-off offshore areas (about 200㎞ from the coastline) is expected to be 0.5 to 1.5 m in the East Sea and West Sea, and 0.5 to 2.5 m in the South Sea.
On the coast of Jeju and the coast of Jeonnam, high waves caused by swells may hit the beach strongly, so caution should be exercised regarding coastal safety accidents.