– Nationwide: 2018 dominated the number of heat wave days and tropical nights at the same time
– Seoul: Number of heat wave days: 2018, number of tropical nights: 1994
Personally, I remember 2016 being hot, but I don’t remember 2018 very well. I was probably busy at work in 2018, but I didn’t pay much attention to the heat because I was busy with that work, so I don’t remember it.