The government has issued a warning and raised the danger level from 3 to 4, meaning “high danger”. No relief from the heat is expected until Monday.
Heatwave lasts longer and affects more and more regions
Keystone-SDA
The heatwave has been gripping Switzerland for some time and is affecting more and more regions. The government has issued a warning and raised the danger level from 3 to 4, meaning “high danger”. No relief from the heat is expected until Monday.
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June 23, 2026 - 15:27
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Swiss authorities issue top-level heatwave warning.
Level 3 and 4 heat warnings issued by the Swiss government are set to remain in place after Tuesday.
The heatwave danger level was raised from 3 to 4 across much of canton Ticino on Wednesday.
The area around Lake Neuchatel, Lake Biel and Lake Murten, along with the central Valais and the Lake Geneva regions have all…
Swiss climatologist Sonia Seneviratne warns that the heatwave season is expanding, underscoring growing climate risks.
Switzerland experienced its first short heatwave of the year over the Whitsun weekend.
