How many tropical nights has Korea recorded so far this summer, and how does it compare with past records?

Korea logged a nationwide average of 7.8 tropical nights from June 1 to July 27. That is the highest figure for the period since nationwide weather observation began in 1973.

What weather did the Korea Meteorological Administration expect in early August?

The agency warned that daytime temperatures were likely to range between 33 C and 39 C from Aug. 1 to 7. It said Daegu was expected to reach 39 C every day during that period.

Korea sees record number of tropical nights so far this summer

Q: Why is Korea seeing so many tropical nights this summer?

The Korea Meteorological Administration said hot and humid air has been flowing into the country under the influence of the North Pacific High pressure system. That weather pattern is driving the persistent heat wave.

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Summary

Korea has logged a record number of tropical nights so far this summer as a heat wave continues to grip the nation, the state weather agency said Tuesday. The nationwide average reached 7.8 between June 1 and July 27, the highest for the period since 1973. The Korea Meteorological Administration said the heat stems from hot, humid air under the North Pacific High, and warned of hotter weather in early August.

Key Facts

The nationwide average number of tropical nights reached 7.8 between June 1 and July 27, according to the Korea Meteorological Administration.
That figure is the highest for the period since 1973, when Korea established a nationwide weather observation network.
The average daily temperature during the same period was 24.2 C, the second highest since 1973 and below last year’s 24.8 C.
The weather agency forecast daytime temperatures of 33 C to 39 C from Aug. 1 to 7.
Daegu was expected to log 39 C every day during that weeklong period.

By Yonhap

Published Jul 28, 2026 3:59 pm KST

People cool off along the Cheonggye Stream in central Seoul, Monday, as a tropical night advisory is issued across most parts of the nation. Yonhap

Korea has logged a record number of tropical nights so far this summer as an unrelenting heat wave continues to grip the nation, the state weather agency said Tuesday.

The nationwide average number of tropical nights reached 7.8 between June 1 and July 27, marking the highest figure for the period since 1973, when the country established a nationwide weather observation network, according to the Korea Meteorological Administration (KMA).

A tropical night refers to a phenomenon when nighttime temperatures stay above 25 C.

During that period, the nation's average daily temperature stood at 24.2 C — the second highest figure since 1973 — only behind last year's 24.8 C.

The weather agency attributed the heat wave to hot and humid air flowing into the country under the influence of the North Pacific High pressure system.

The KMA warned the country is expected to experience hotter weather, with daytime temperatures to range between 33 and 39 C from Aug. 1 to 7.

The southeastern city of Daegu is expected to log 39 C every day during the weeklong period. The city recorded its all-time high temperature of 40 C on Aug. 1, 1942.

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