Japan records first 'cruelly hot day' as heat sweeps across nation

Japan experienced its first day exceeding 40 degrees Celsius this year, a threshold the country now tracks separately as rising temperatures trigger heatstroke deaths and crop damage.

First covered Jul 21, 2026 · 10:15 PM PT · 1 article

Japan records first 'cruelly hot day' as heat sweeps across nation — Image via theguardian.com

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17h Guardian Environment Japan swelters through rising heat – in pictures — For Japan, days where the mercury soars above 40C now have their own term – kokushobi (酷暑日), or ‘cruelly hot day’, as rising temperatures cause heatstroke…

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yahoo.com Japan sizzles in first 'brutally hot' days of the year

en.sedaily.com Japan Forecasts First-Ever 40-Degree "Extreme Heat Day," Straining Labor and Industry - Seoul Economic Daily

japantimes.co.jp JMA introduces new name for days of 40 C heat - The Japan Times

japanupmagazine.com Japan Heatwave 2026: JMA Warns of "Once in a Decade" Heat (July 8)

selfguidejapan.com Japan Heatwave 2026: A Self-Guided Traveler's Survival Guide | BluePlanet

Appeared in: 2026-07-22 (#12)

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Japan records first 'cruelly hot day' as heat sweeps across nation

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