Switzerland has experienced the coldest night of the winter so far, with an influx of polar air dropping temperatures to as low as -23°C in La Brévine and below -10°C in the lowlands. The icy spell is expected to continue.
"Epiphany started with temperatures of -10°C in the lowlands."
"A mostly clear night and the influx of polar air led to the lowest temperatures of this winter in many parts of Switzerland."
Switzerland is shivering under a merciless polar grip as temperatures plummet to their lowest levels of the winter. A staggering -30.3°C was recorded on Monday morning in La Brévine, reasserting the village's reputation as the "Siberia of Switzerland." While Tuesday saw a slight "warming" to -23°C in the same region, the intensity of this cold snap is undeniable. This is not merely a chilly spell; it is a full-force influx of polar air that has turned the Swiss landscape into a deep freezer.
The meteorological data is stark and unforgiving. Clear skies overnight have accelerated radiative cooling, allowing the mercury to freefall unchecked. In the Jura region, the freeze is particularly brutal, with Le Locle registering a biting -18.3°C. These figures represent the absolute nadir of the 2026 winter season so far, forcing residents to grapple with conditions that are hazardous without proper preparation. The sheer magnitude of these numbersâsurpassing -30°Câserves as a stark reminder of the raw power of alpine winter weather.
The freezing temperatures are not confined to remote mountain valleys; Switzerland's major urban centers are confronting a severe deep freeze. Bern, the capital, woke up to a piercing -10°C on Epiphany morning, a temperature that turns morning commutes into endurance tests. Meanwhile, Zurich and Basel are shivering at -7°C, transforming the bustling hubs into icy landscapes where breath hangs heavy in the air.
This widespread drop below the zero mark in the lowlands signals a pervasive weather event that affects nearly the entire population. It is rare for the plains to sustain such low temperatures alongside the mountains, creating a unified national shiver. Infrastructure and transport networks face the strain of these sub-zero conditions, as icy roads and frozen switches become potential hazards. Residents in these metropolitan areas are facing the coldest commute of the year, with the biting cold penetrating even the thickest winter coats.
High in the Alps, the cold is nothing short of ferocious. At altitudes surpassing 2,000 meters, the average temperature has settled at a numbing -13°C, but specific pockets of the country are experiencing conditions far more extreme. St. Moritz in GraubĂŒnden stands out as a frozen outlier, with temperatures crashing to a dramatic -24°C. For winter sports enthusiasts, this presents a paradox: pristine, sun-drenched slopes paired with potentially dangerous cold.
While the skies remain deceptively blue and sunny, the air on the slopes is biting. Skiers and snowboarders are braving conditions that demand high-performance gear to prevent frostbite. The contrast between the brilliant sunshine and the brutal air temperature creates a unique, albeit harsh, winter environment. These are not standard winter days; they are outliers that test the resilience of even the most seasoned alpine locals.
In a striking meteorological twist, the south of Switzerland is defying the national freeze. While the north shivers, Ticino and southern regions are basking in temperatures hovering around +6°C. This dramatic temperature disparityâa difference of over 30 degrees compared to La BrĂ©vineâis driven by the North Foehn, a warm wind that descends the southern slopes of the Alps, compressing and heating the air.
This phenomenon creates a tale of two Switzerlands: one encased in ice and the other enjoying a relatively mild winter day. The Foehn acts as a protective shield for the south, keeping the polar air mass at bay behind the alpine barrier. For residents in Lugano or Locarno, the headlines of -30°C feel like news from a different continent, highlighting the incredible microclimatic diversity packed into this small alpine nation.
The current icy stranglehold is intense, but it is temporary. MeteoSchweiz forecasts that this bitter cold snap will persist only until Thursday. By Friday, a significant shift in the weather pattern will occur as a large low-pressure area moves over north-central Europe. This system will break the clear, cold spell, replacing the biting frost with clouds and precipitation.
Looking ahead to the weekend and mid-January, Switzerland will transition from the freezer to the damp. Temperatures are projected to rebound significantly, reaching highs of 2°C to 7°C. However, this warmth comes at a price: the return of rain and snow. The crisp, sunny days will give way to wetter, greyer conditions, marking a definitive end to this record-breaking week of cold. For now, the Swiss must endure one more day of the deep freeze before the Atlantic currents bring relief.