Japan Heatwave Crisis: Over 9,000 Hospitalised in a Single Week as Temperatures Soar
Japan is grappling with a deadly heatwave, as extreme temperatures sweep across the country and push thousands into hospitals. According to Japan’s Fire and Disaster Management Agency (FDMA), a staggering 9,118 people were taken to hospital between 22 and 28 July due to heatstroke and heat exhaustion-related symptoms.
Among those affected, 453 were reported to be in serious condition, and 3,129 required overnight stays for further treatment. The remaining patients were treated for milder symptoms and discharged. The week’s hospitalisation tally marks a significant spike in heat-related emergencies, reflecting the escalating threat posed by Japan’s increasingly severe summer temperatures.
The elderly population has been especially vulnerable. Individuals aged 65 and above made up over half of all hospital admissions. With Japan’s ageing population already a strain on its healthcare system, the current climate crisis has further intensified demand for emergency medical services.
Record-Breaking Temperatures Hit Hyogo Prefecture
On 30 July, Hyogo Prefecture recorded a sweltering 41.2°C, marking the highest temperature in the country so far this year. Several other regions across Honshu and Kyushu also reported temperatures exceeding 38°C, with the Japan Meteorological Agency issuing heatstroke alerts in more than 40 prefectures.
The intense heat has prompted public health officials to issue repeated warnings, urging residents to avoid non-essential outdoor activities, drink water frequently, and make use of air conditioning where possible. However, despite these advisories, emergency responders continue to be overwhelmed by the number of patients requiring urgent care.
Children and outdoor workers are also at elevated risk, with many schools suspending outdoor activities and companies implementing flexible work arrangements to protect employees from the searing heat.
Government Response and Rising Climate Concerns
In response to the surge in medical emergencies, local governments have opened designated cooling shelters, especially in urban centres like Tokyo, Osaka, and Nagoya. These air-conditioned facilities are equipped with seating, drinking water, and medical staff to assist those suffering from heat-related symptoms.
Experts have attributed the prolonged heatwave to global climate change, warning that such extreme weather events will become more frequent and intense if carbon emissions are not curbed. Japan, which has pledged to achieve carbon neutrality by 2050, is facing mounting pressure to speed up green infrastructure investment and bolster climate adaptation measures.
Meanwhile, public sentiment has grown increasingly critical of delayed government action. Health advocates and environmental groups have called for mandatory heat protection policies, especially for the elderly, children, and low-income families who may lack access to air conditioning or cooling equipment.
Precautions Urged as Hot Weather Continues
Meteorologists predict that the heat will persist well into August, with daily highs expected to remain above 35°C in many parts of the country. The Ministry of Environment has advised residents to download heat warning apps and monitor real-time alerts, especially those living alone or caring for at-risk individuals.
Authorities continue to stress the importance of proactive measures such as wearing light clothing, avoiding alcohol during the day, and regularly checking on neighbours and family members. As Japan battles this climate-induced emergency, the emphasis remains on early intervention, medical preparedness, and community awareness to prevent further casualties.
Public Urged to Take Action
Authorities continue to urge the public to take immediate steps to protect themselves and others. People are encouraged to:
- Drink water regularly, even if not thirsty
- Pack travel insurance with coverage for medical emergencies and heat-related hospitalisations.
- Use air-conditioning or fans to cool indoor spaces
- Take breaks in shaded or air-conditioned areas when outdoors
- Avoid direct sunlight and wear light, breathable clothing
- Check on vulnerable family members or neighbours
With temperatures expected to remain high into early August, Japanese health officials stress the importance of community awareness and support to prevent further casualties.