Why are temperatures of 25C considered a heatwave in Sweden?
Briefly

Heatwave warnings have been issued in Sweden as temperatures are anticipated to reach 25 degrees Celsius. The Swedish meteorological institute SMHI defines a heatwave as three consecutive days at 26 degrees Celsius or more. Extreme heat events have become a concern in Sweden recently, with the summer of 2018 being notably hot, leading to many wildfires. Swedish buildings are designed for cold weather, lacking features such as air conditioning, making them less capable of managing excessive heat effectively.
Sweden's meteorological institute SMHI has defined a heatwave as temperatures reaching 26 degrees Celsius for three consecutive days, and very high temperatures when they reach 30 degrees Celsius over the same period. Extreme heat has become increasingly problematic due to climate change, with 2018 marking a significant year featuring record wildfires and temperatures. Swedish infrastructure has predominantly been designed for cold weather, lacking features like air conditioning and ceiling fans, causing challenges in managing indoor heat during these periods.
The summer of 2018 was a significant turning point, highlighting vulnerabilities to extreme temperatures within Sweden’s infrastructure, which is primarily insulated for colder conditions. The lack of air conditioning and resistant building designs limits solutions for remaining cool during heatwaves, pointing to a need for adaptations considering increasing heat events.
Read at www.thelocal.se
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