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Seoul Nowon hits 40.2°C: time to reset everyday heat-safety standards

2026-08-08 · about 5 min read
ⓘ This article is for general information only and does not replace professional medical, legal, or financial advice. Please consult a qualified professional before making important decisions.

Reports say 40.2°C was observed in Nowon, Seoul, setting this summer’s highest Seoul temperature. Local observation values and official benchmark values can differ, but the risk felt by residents is already extremely high. Heat is now a social-safety issue that requires adjusting work, travel, care, and electricity use.

Key summary

  • Reports of record heat, including 40.2°C in Nowon, Seoul, continued.
  • High temperatures persisted even around the seasonal marker of ipchu, increasing risks for outdoor activity and care work.
  • Heat illness is especially dangerous at sports fields, construction sites, delivery and logistics jobs, and homes of older people living alone.
  • Heat response must go beyond drinking water and include schedule changes and work-stoppage standards.

Confirmed facts

  • MBC News, Newsis, and Dong-A Ilbo reported high Seoul temperatures and the heat-wave situation.
  • The reports covered 40°C-range observations in Nowon and the trend of Seoul summer highs being renewed.
  • Some reports distinguished official observation standards from local readings.
  • Heat waves connect simultaneously to heat illness, electricity demand, agricultural and livestock damage, and outdoor-worker safety.

Why it matters now

At temperatures near 40°C, even healthy adults can experience dizziness, dehydration, or heat exhaustion in a short time. For children, older adults, people with chronic illness, and outdoor workers, changing a schedule by a few hours can be directly tied to life and health. That is why schools, workplaces, and local governments need to treat heat as a disaster-operation standard.

What to watch next

  • Check how schools, academies, and sports activities adjust during peak heat hours.
  • Watch whether rest and work-stoppage standards are actually followed in construction, delivery, farming, and other outdoor jobs.
  • Cooling shelters, electricity-bill support, and check-in networks for older residents become more important.
  • During peak electricity demand, efficient cooling settings and protection for vulnerable households should be considered together rather than simply turning cooling off.

Search keywords

  • Seoul Nowon 40.2 degrees
  • Seoul heat wave highest temperature
  • heat illness prevention
  • heat wave work stoppage standard
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Heat risk varies by neighborhood. Check local disaster messages, weather alerts, and cooling-shelter information, and move immediately to shade or an air-conditioned space if symptoms appear.
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