The heat is now hitting the country's dairy herds, with cows producing less milk as they burn extra energy to stay cool.
The Swiss Farmers' Union says cattle enter serious heat stress at 25 degrees, and severe stress above 28.
Farmers are running fans and misters in barns, keeping herds indoors during the day and drawing on winter hay stocks weeks early.
Hottest summer ever
MétéoSuisse has confirmed that summer 2026 was the hottest ever recorded in Switzerland
Vaud celebrates international music star
The Vaud town of Morges is looking back at the February 1988 night that launched Céline Dion's international career
Zurich HB wins another award
Zurich has topped Europe's biggest station ranking for the fifth year in a row
Another controversial vote at end of September
Switzerland is heading for another polarising ballot on 27 September
US tourism from Switzerland slumps
Fewer people in Switzerland want to fly to the United States
Home hunting even more challenging
Finding a home in Switzerland has just become harder still
