Friday the 26th will be mostly clear in the central region, while rain will continue in the southern region and Jeju.
The Korea meteorological Administration said, "Until the morning of the 26th, there will be places with dense fog mainly in the central inland and the Incheon and Gyeonggi west coast, and the north-central inland of North Gyeongsang," and "Due to the stationary front over the West Sea and a developed low-pressure system on it, rain will be on and off in the southern region and Jeju."
By region, North Jeolla will see rain in the morning of the 26th, South Gyeongsang in the afternoon, and South Jeolla and Jeju through the night.
Through the 26th, expected additional rainfall is 20∼60 mm for Jeju and the southern coast of South Jeolla, 10∼40 mm for the western south coast of South Gyeongsang, 5∼40 mm for Gwangju and South Jeolla (excluding the south coast), 5∼20 mm for Busan, Ulsan, and South Gyeongsang (excluding the western south coast), 5∼10 mm for North Jeolla, and less than 5 mm for Daegu and southern North Gyeongsang.
From late night on the 25th to the morning of the 26th, dense fog reducing visibility to under 200 meters will form in the central inland, the Incheon and Gyeonggi west coast, and the north-central inland of North Gyeongsang, with fog under 1 kilometer of visibility elsewhere.
Because it rained on the 24th and 25th, increased water vapor in the air will condense as temperatures drop overnight, creating fog.
Temperatures will be slightly above average.
Nationwide morning lows are expected to range from 14 to 23 degrees, with daytime highs from 25 to 29 degrees.
Forecast lows and highs for major cities are 18 and 28 degrees in Seoul, 19 and 26 in Incheon, 18 and 27 in Daejeon, 22 and 27 in Gwangju Metropolitan City, 21 and 29 in Daegu, 21 and 27 in Ulsan, and 23 and 28 in Busan.
In Jeju, late-summer heat will continue, with midday apparent temperatures around 33 degrees along the coast.
A heat advisory is currently in effect for coastal areas of Jeju, excluding mountainous and mid-mountainous areas such as the west, north, east, and south.
Long-period swells will move into the Jeju coast, the west coast, and the south coast through the morning of the 27th. As a result, waves may surge over rock formations or breakwaters, so caution is advised.