First September Tropical Night Since 1935, Heat Continues This Week... Gradually Subsiding From Late Week

Unusually, a heatwave warning was issued in September, and the late summer heat continues to rage, with daytime high temperatures expected to reach 30 degrees Celsius until early this week. Proper autumn is expected to arrive later in the week as clouds increase nationwide and temperatures gradually drop.

The Korea Meteorological Administration forecasted on the 11th that under the influence of a high-pressure system near the Shandong Peninsula in China, many areas will see daytime temperatures around 30 degrees Celsius. By region, the temperatures are expected to be 30°C in Seoul, 28°C in Incheon, 30°C in Suwon, 29°C in Chuncheon, 28°C in Gangneung, 30°C in Daejeon, 30°C in Daegu, 31°C in Jeonju, 30°C in Gwangju, 29°C in Busan, and 29°C in Jeju. On the 12th, morning low temperatures are expected to range from 18 to 24 degrees Celsius, and daytime highs from 27 to 30 degrees Celsius, about 3 degrees higher than average.

This year, unprecedented heat has persisted, including a tropical night in Seoul in September for the first time in 88 years since 1935. On the 5th, the night was recorded as the hottest September night since observations began. Seoul experienced a tropical night in September for the first time in 88 years. The average temperature in Seoul at that time was 28.5 degrees Celsius, the highest average daily temperature ever recorded for September.

Late summer heatwaves usually occur due to global warming and El Ni?o, but this year, the jet stream formed in the Northern Hemisphere has also contributed. The polar jet stream, which blocks cold air from the Arctic, is flowing strongly from west to east, preventing cool air from coming in and prolonging the heatwave. Additionally, the Korean Peninsula is under the influence of a high-pressure system, continuously bringing in warm air, which also plays a role in the rise of September temperatures.

The late summer heat is expected to gradually subside from the latter part of this week. The Korea Meteorological Administration forecasted that from the 13th, as the Korean Peninsula comes under the influence of a trough, clouds will increase nationwide, and some areas will experience rain. Daytime temperatures are also expected to fall below 30 degrees Celsius. However, morning low temperatures will also drop, so the Korea Meteorological Administration expects a large temperature difference between day and night for the time being.

This content was produced with the assistance of AI translation services.