Record high tropical nights in S Korea

Korea has been experiencing heat waves day and night. The national average number of tropical nights last month set a record high of 8.8 days. The average overnight low was the second highest on record. The number of intensely hot days was about the same as in previous years, indicating that it was hotter during the night than during the day this year.

Tropical nights are expected to continue into next week, making it very likely for the August tropical night record to be broken as well. The unprecedented hot nights have caused 20% of heat-related illness cases to occur between evening and morning hours.