Today, temperatures are expected to rise, leading to a hot day, but rain will begin nationwide tomorrow, bringing a shift in the weather pattern.
According to the Korea Meteorological Administration, the weather will be mostly cloudy today, becoming overcast by night. The daytime high is forecasted to range from 24 to 31 degrees Celsius. In particular, areas in the southeastern region may see temperatures exceed 30 degrees, with significant temperature differences between day and night across the inland areas.
Rain will start in earnest from May 20. Early in the morning, precipitation will begin in the Chungcheong and Jeolla regions, as well as Jeju Island, and will expand to the rest of the country by the morning. Most of the rain is expected to cease by the afternoon of May 21, although some areas in Gangwon Province and Jeju Island may experience rain until the evening.
The anticipated rainfall from May 20 to 21 includes 30 to 80 millimeters in Seoul, Incheon, Gyeonggi Province, and the five islands in the Yellow Sea; 30 to 80 millimeters in eastern Gangwon; 20 to 60 millimeters in western Gangwon; and 20 to 60 millimeters in Daejeon, Sejong, and Chungnam. In Chungbuk, 10 to 50 millimeters is expected. Gwangju, Jeonnam, and Jeonbuk are forecasted to receive 20 to 60 millimeters, with over 80 millimeters possible along the southern coast of Jeonnam. Busan, Ulsan, and Gyeongnam are expected to see 20 to 60 millimeters, while the western southern coast of Gyeongnam may receive over 80 millimeters. In Daegu, Gyeongbuk, and the islands of Ulleungdo and Dokdo, 10 to 50 millimeters are anticipated. Jeju Island, excluding the northern region, is expected to receive 30 to 80 millimeters, with mountainous areas possibly seeing over 120 millimeters and the southern mid-mountain areas over 100 millimeters.
As the rain falls, temperatures will also drop. The morning low on May 20 is expected to be between 15 and 19 degrees, with a daytime high of 18 to 23 degrees. On May 21, the morning low will range from 13 to 18 degrees, with a high of 18 to 23 degrees, which is lower than the daytime high of 24 to 31 degrees expected today.
On May 22, the weather will be partly cloudy nationwide. The morning low is forecasted to be between 11 and 17 degrees, with a daytime high of 19 to 28 degrees.
The weekend weather will differ slightly between Saturday and Sunday. According to the meteorological agency, Saturday, May 23, will be mostly cloudy nationwide, with rain expected in Jeju Island. Sunday, May 24, will be clear across the country. Morning temperatures over the weekend are expected to range from 12 to 17 degrees, with daytime highs between 22 and 30 degrees.
However, the rainfall on May 23 in Jeju Island and on May 26 in the Chungcheong, southern regions, and Jeju Island may vary. The meteorological agency advises that the timing and areas of rainfall may change due to developments in the pressure system and its movement, urging the public to check the latest forecasts.
* This article has been translated by AI.
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