Climate change has made weather extremities more intense, frequent and unpredictable, scientists say, AzVision.az reports, citing BBC.
This pattern is especially pronounced in Asia, which according to the World Meteorological Organization is warming nearly twice as fast as the global average.
The region has lost $2 trillion (£1.5 trillion) to extreme weather – from floods to heatwaves and droughts – over the past three decades, according to the annual Climate Risk Index survey.
Japan marked its hottest day on record on Tuesday, with 41.8C (107F) registered in Isesaki city, Gunma prefecture.
The country had also experienced its hottest-ever June and July this year.
Fifty-six people are believed to have died from heatstroke between mid-June and the end of July, Tokyo's medical examiner's office said earlier this week.
Authorities have suspended some train services over concerns that the heat could warp or deform the rails.
"I'm really concerned about global warming, but when it comes to my daily life, I can't live without turning on the air conditioner," an office worker in Japan told AFP news.
"I don't really know what I should be doing, I'm just desperately getting through each day."
This intense heat is expected to ease a little in the coming days, with some parts of Japan expected to see as much as 200mm of rain in the coming days.
This rain and briefly cooler air will allow some relief from the swelter.
South Korea marked a record streak of 22 "tropical nights" in July where temperatures exceeded 25C.
Last month, the country's emergency services also reported a surge in calls about heat-related illnesses.
Government agencies and workplaces have relaxed their dress codes to help employees work more comfortably and reduce dependence on air conditioning amid the heat.
Parts of Vietnam are also baking in unprecedented heat, with Hanoi recording its first-ever August day above 40C. The capital city has turned into "a pan on fire" in the last few days, Nam, a construction worker, told AFP.
AzVision.az
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