Southern Switzerland is set to experience a heatwave over the coming days, with daytime highs forecast to peak around 35°C. This marks a significant departure from the seasonal normal, with temperatures running roughly 7.5°C above average for this time of year. The heat is expected to be most intense in the Canton du Valais, where the anomaly is most pronounced.
Where the Heat Concentrates
The strongest heat is centered on the south, particularly in the Canton du Valais, where Sitten is forecast to see highs around 35.0°C, a remarkable 12.0°C above the local normal. Other southern cities like Montreux and Genève are also expected to see significant warmth, with highs near 31.4°C and 34.6°C respectively.
Other Regions See Milder Warmth
Northern Switzerland is also experiencing above-average temperatures, with highs near 31.7°C, about 4.9°C above the seasonal norm. Cities like Zug, Baar, and Kriens are among the warmest in the region. Western Switzerland is similarly affected, with highs around 31.9°C, roughly 5.7°C above normal. Cities like Lausanne and Neuchâtel are notable for their elevated temperatures.
Eastern Switzerland, while less affected, is still seeing temperatures about 8.0°C above normal, with highs near 28.3°C in cities like Chur.
Practical Guidance
Heat of this intensity can be taxing, particularly in the afternoon hours. It is advisable to stay hydrated, avoid strenuous activity during the peak heat, and check on vulnerable individuals. While this is not unprecedented for a Swiss summer, the margin above normal makes the next few days worth watching. Conditions are expected to gradually return to seasonal norms as the week progresses.
