Japan Records New All-Time High Temperature of 41.2°C Amid Global Heat Crisis

Japan has officially recorded its highest-ever temperature of 41.2°C, as the nation continues to swelter under an intense heatwave fuelled by global climate change. The new peak, registered on Wednesday in Hyogo Prefecture, has surpassed the country’s previous record of 41.1°C recorded in Hamamatsu (2020) and Kumagaya (2018).

Extreme Heat Hits Kyoto and Beyond

For the first time since meteorological observations began, temperatures in Kyoto—Japan’s historic cultural capital—reached a staggering 40°C. Kyoto’s temperature milestone was recorded at several observation points, the earliest of which began in 1880.

According to the Japan Meteorological Agency (JMA), the heat has triggered heatstroke warnings across vast parts of the country as temperatures exceed 35°C at hundreds of locations.

On Tuesday alone, 322 of the nation’s 914 weather stations recorded temperatures of 35°C or higher, the highest number since comparative data began in 2010. New local records were set at 38 locations, including Gujo in Gifu Prefecture with 39.8°C.

Broader Climate Context

Japan’s 2023 summer tied for the hottest on record, followed by the warmest autumn in 126 years of documented history. This year, the pattern continues with a severe heatwave stretching across the archipelago. The JMA forecasts further spikes in temperatures, particularly in the northern and eastern regions, urging citizens to take serious health precautions.

“Please take care of your health including (avoiding) heatstroke,” stated the JMA.

Rising Toll: Heatstroke Emergencies and Fatalities

The heatwave has had devastating human consequences. Last week alone, 10,804 people were hospitalised due to heatstroke, the highest weekly figure of 2024. The Fire and Disaster Management Agency reported:

• 16 deaths attributed to heatstroke
• Exceeding the previous weekly record of 10,053 hospitalisations (30 June – 6 July)

The elderly population—Japan has the second-oldest demographic globally, after Monaco—is particularly vulnerable. Authorities continue to urge the public, especially older residents, to seek shelter in air-conditioned spaces and stay hydrated.

Global Climate Alarms

This extreme weather in Japan is part of a wider pattern of intensifying heatwaves linked to climate change:

• Western Europe recorded its hottest June on record, with daily average temperatures reaching unprecedented highs.
• Spain and Portugal experienced surface temperatures above 46°C.
• According to the Copernicus Climate Change Service (C3S), climate change contributed to temperatures being up to 4°C hotter than they otherwise would have been.

Millions were exposed to extreme heat stress, and scientists warn that such conditions are becoming more frequent and more deadly, particularly for vulnerable populations.

With global temperatures continuing to climb, experts caution that heat-related mortality, infrastructure strain, and climate-driven disasters will likely intensify—making early warning systems and public health interventions more critical than ever.