Swiss Heat Warnings Likely to Be Extended Beyond Tuesday

Heat warnings issued by the Swiss government are expected to remain in place beyond Tuesday as the country continues to experience rising temperatures, according to the national meteorological service MeteoSwiss.

Level 3 and Level 4 heat warnings were activated across several regions, signaling significant heat conditions affecting both urban and rural areas. Authorities are closely monitoring the situation as temperatures continue to climb.

On the first day of the heatwave, Basel-Binningen recorded temperatures of 30°C shortly before midday, while Zurich-Affoltern reached 29.7°C before noon, indicating a strong start to the hot weather period.

Despite the high temperatures, meteorologists say the situation has not yet reached an “exceptional” level. According to MeteoSwiss expert Melanie Ruosch, a heatwave is classified as exceptional only if it lasts for a week or longer.

She noted that Switzerland has experienced several prolonged heatwaves in recent years, including in 2025, 2022, 2019, 2017, and the extreme summer of 2003.

Currently, the official heat warnings are scheduled to remain in effect until Tuesday. However, meteorologists now expect that these warnings may need to be extended if high temperatures persist across the country.

“At the moment, it looks as though we will have to extend the heat warning beyond Tuesday,” said Ruosch.

Authorities continue to advise the public to take precautions during the heatwave, especially vulnerable groups such as the elderly, children, and individuals with health conditions, as Switzerland prepares for potentially prolonged high-temperature conditions.