On June 21, the summer solstice and the longest day of the year, cloudy conditions are expected nationwide, with increasing cloud cover by night.
According to the Korea Meteorological Administration on June 20, morning low temperatures will range from 15 to 21 degrees Celsius, while daytime highs will reach between 22 and 30 degrees, consistent with seasonal averages.
In the mountainous regions of Gangwon and along the East Coast, rain from the previous day will continue until the morning, with overcast skies expected throughout the day in Gangwon's Yeongdong area. The central region, including the capital area, will see cloudy conditions during the day, but most areas will experience a cessation of rain.
During the day, ultraviolet radiation levels will be high. The UV index is forecasted to reach 'very high' levels in most areas starting at noon, with some southern regions potentially reaching 'danger' levels, necessitating caution for outdoor activities.
Wave heights are expected to be between 1.0 to 5.0 meters in the East Sea, 0.5 to 1.5 meters in the West Sea, and 0.5 to 2.5 meters in the South Sea.
In the offshore waters, approximately 200 kilometers from the coastline, wave heights are predicted to be 1.5 to 5.5 meters in the East Sea, 0.5 to 2.0 meters in the West Sea, and 0.5 to 3.5 meters in the South Sea.
Looking at the expected temperatures for major regions, morning lows are forecasted as follows: △Seoul 19°C △Incheon 19°C △Suwon 18°C △Chuncheon 17°C △Gangneung 18°C △Cheongju 18°C △Daejeon 18°C △Sejong 17°C △Jeonju 18°C △Gwangju 19°C △Daegu 19°C △Busan 21°C △Ulsan 20°C △Changwon 20°C △Jeju 21°C.
Daytime highs are expected to be: △Seoul 29°C △Incheon 28°C △Suwon 29°C △Chuncheon 27°C △Gangneung 23°C △Cheongju 29°C △Daejeon 28°C △Sejong 28°C △Jeonju 28°C △Gwangju 30°C △Daegu 29°C △Busan 28°C △Ulsan 27°C △Changwon 29°C △Jeju 26°C.
* This article has been translated by AI.
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