Japan Introduces 'Kokushobi' for Days Exceeding 40C Amid Record Heat

1-Minute Brief

Japan's new heat classification reflects growing concerns over extreme weather and its impact on public health and safety.

Key Facts

• Japan’s weather agency has expanded its heat classification system to include days exceeding 40°C.
• The new term, 'kokushobi', translates to 'cruelly hot', 'brutally hot', or 'severely hot'.
• The decision follows what was described as Japan's hottest summer on record.
• The naming comes as the country prepares for another potentially very hot summer.
• Officials cited dramatic temperature changes in recent years as a reason for the update.

What Happened

Japan’s weather agency has formally introduced the term 'kokushobi' to classify days when temperatures exceed 40°C, following recent record-breaking heat.

Why It Matters

The adoption of a new category highlights the increasing frequency and severity of extreme heat events in Japan, raising awareness of climate-related health risks.

What's Next

Authorities may use the new classification in weather forecasts and public advisories as summer approaches. Further updates to heat response measures could follow.