Swiss authorities issue top-level heatwave warning.
Temperatures are expected to rise to 35 degrees Celsius.
Keystone-SDA
The Swiss government has issued a warning of a severe heatwave over the next few days. From Thursday lunchtime, a Level 3 (out of 4) heatwave warning will be in force across large parts of Switzerland. The cantons of Basel City and Basel Country are under the highest heatwave warning level.
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June 17, 2026 - 13:37
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Level 3 and 4 heat warnings issued by the Swiss government are set to remain in place after Tuesday.
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.
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Les températures ont atteint des records pour un mois de mai en Suisse et partout en Europe, spécialement au Royaume-Uni.…
Switzerland experienced a tropical night in many places on Thursday night. This means the temperature did not fall below 20°C.
