On Saturday the 18th, daytime highs will rise to as high as 27 degrees, bringing hot weather. However, beware of a large daily temperature range of around 15 degrees.
The central region will be mostly clear, while parts of the southern region and Jeju Island will see rain.
In eastern North Jeolla, rain will fall until dawn, and in the South Jeolla south coast, the eastern inland, the southern part of North Gyeongsang, and South Gyeongsang, some areas will see rain through the morning. On Jeju Island, rain will begin in the morning and continue for three days.
Expected rainfall is 5–10 mm for the South Jeolla south coast, Busan, Ulsan, and South Gyeongsang, and less than 5 mm for eastern North Jeolla, the eastern inland of South Jeolla, Daegu, and southern North Gyeongsang.
For Jeju Island, 20–60 mm of rain is forecast over three days from the 18th to the 20th.
Strong winds with instantaneous speeds around 55 km (around 70 km in mountainous areas) will blow mainly along the south coast and on Jeju Island. Over the southern seas and the waters around Jeju, there will be places with gusts accompanied by thunder and lightning, so caution is advised to prevent marine accidents.
Daytime highs are forecast at 19–27 degrees, higher than the seasonal averages of 17–22 degrees.
Fine dust concentrations are expected to be "good" to "moderate" in all regions.
Waves will run 0.5–1.5 m off the east and south coasts and 0.5–1.0 m off the west coast.
In the inner offshore waters (the open sea within about 200 km of the coastline), wave heights are expected to be 0.5–2.0 m in the East and West Seas and 0.5–2.5 m in the South Sea.