Temperatures reached 36.7°C in the city of Geneva on Wednesday, slightly down on the previous day.
An increasing number of local and regional authorities have announced a ban on open fires and fireworks near forests as a precautionary measure.
Water levels in several rivers and lakes have dropped low as experts warn of a serious risk for fish and reptiles.
The authorities in the mountain resort of Nendaz decided to refill a mountain lake situated at more than 2,200m above sea level. The Tracouet LakeExternal link is home to a large population of amphibians and exceptional alpine flora.
The River Aare, popular with swimmers in the Swiss capital, Bern, reached a record 23.9°C.
Thunderstorms and hail, notably in the Bernese Oberland region and in western Switzerland, brought temporary relief, but temperatures are expected to remain high.
More
Debate
Hosted by:
Patricia Islas
What can be done to protect people against the effects of heatwaves?
In many parts of the world people are increasingly suffering from intense heat. How do you cope with the rising temperatures?
Train vs plane: would you take a direct train between London and Geneva?
Eurostar is planning to run direct trains from Britain to Germany and Switzerland from the early 2030s. Would you favour the train over the plane? If not, why not?
Swiss watch industry calls for ‘clear solution’ with US
This content was published on
Federation of the Watch Industry calls for clear solution to tariff threat and a swift agreement between Bern and Washington.
Swiss youngsters illegally obtain alcohol in a quarter of test purchases
This content was published on
In a quarter of all alcohol test purchases last year, young people in Switzerland were able to obtain beer, wine or spirits illegally.
Swiss storm damage more frequent and more expensive
This content was published on
Storm damage has increased by 126% in the last ten years. Costs have risen by 133% in the same period, according to Helvetia Insurance.
You can find an overview of ongoing debates with our journalists here . Please join us!
If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.