Last night, the lowest temperature in Seoul recorded 28.3 degrees. In July, there have been a total of 21 tropical nights in Seoul, which is the highest number observed in the last 117 years.
According to the Korea Meteorological Administration on the 30th, the total number of tropical nights in Seoul from the 1st to the 29th of this month was recorded as 21 days. This is the highest number of tropical nights in July in the 117 years since modern meteorological observations began in Seoul. The second place was also 21 days, recorded in 1994, but the Korea Meteorological Administration explained that when the same value occurs, the recent value is ranked higher.
A tropical night refers to the phenomenon where the temperature remains above 25 degrees from 6 p.m. until 9 a.m. the next day.
The Korea Meteorological Administration explains that the intense tropical nights in Seoul are attributed to the continuous heat accumulation caused by the 'double high-pressure system', along with the 'urban heat island effect' where concrete buildings and roads in the city do not cool down easily even at night.
A representative from the Korea Meteorological Administration said, "Due to the overlap of the Tibetan high-pressure system and the North Pacific high-pressure system, heat continues to accumulate, and hot and humid air is continuously flowing in from the southwest," adding that the 'Föhn effect' that heats up as the warm southeast winds cross the Sobaeksan mountain range and Taebaeksan mountain range has also compounded the urban heat island effect.
Last night, not only in Seoul but across the western region of the Korean Peninsula and along the coast, tropical nights prevailed. In particular, Seogwipo in Jeju has experienced tropical nights for fifteen consecutive days, while Incheon, Cheongju, and Gangneung have had them for ten days.
On this day of Jungbok, the sweltering heat is expected to continue. The daytime high is forecasted to be between 32 and 38 degrees. Daejeon is expected to reach 38 degrees, while Seoul and Daegu are forecasted to hit 36 degrees, Gwangju 35 degrees, and Incheon, Ulsan, and Busan 33 degrees. This weekend, morning temperatures are expected to be between 21 and 27 degrees, with daytime highs similar to today, ranging from 27 to 37 degrees.