While it may not feel like it now, especially with temperatures of over 30 degrees Celsius forecast for many Swiss cities on Tuesday, the first snowfall of the 2022 / 2023 season is set to arrive in towns in the mountains over the weekend. According to Meteonews, the snow line is expected to fall to 1.500 metres above sea level, meaning a first dusting of powder for many Swiss ski resorts.

Swiss weather to cool from Wednesday

While many residents may be expecting - or even hoping - that the summer and heatwaves are over in Switzerland, they are set to be disappointed. According to Meteonews, Tuesday is expected to be extremely hot, with temperatures in Geneva and Valais set to rise to 30 degrees or more. In other Swiss cities like Zurich and Basel, the mercury will rise as high as 28 degrees.

However, for those wanting a final dip in a Swiss lake or river, this may be your last chance, with meteorologist Roger Perret telling 20 minuten that temperatures will soon start to fall. Starting at 25 degrees in most areas on Wednesday, the temperature will drop to 15 degrees by the weekend, with heavy rain expected on Wednesday, Thursday and Friday. 

30-degree temperatures to be followed by the first snow

Along with the cooler temperatures, "Particularly heavy precipitation can be expected along the Alps," Perret explained. According to his forecast, the snowline will drop from 1.800 metres to 1.500 metres above sea level by the weekend. This means that locals are likely to see the first snow of the 2022 / 2023 season falling in Swiss mountain towns. "In Davos, there is probably not enough snow, but Arosa could be a bit sweeter," Perret noted. 

While people in Swiss ski resorts should enjoy the first snowfall, Perret advised caution, particularly for drivers as the slippery conditions on mountain passes can increase the chance of road accidents. For those thinking we have skipped a season and are already headed into winter, Perret said that there is nothing unusual about colder temperatures and snow in September.

Swiss cities will have to wait for first snowfall

However, low-lying areas will have to wait a little while longer for the first snow. While the weekend will be colder, scattered sunshine and rain clouds will dominate over the weekend. Temperatures will range between 15 and 18 degrees Celsius in most areas, perfect conditions for a day trip to a Swiss historical site, castle or landmark.