A powerful cold snap is gripping Switzerland, bringing freezing temperatures, icy rain, and snow. This report covers the latest weather forecasts from MeteoSwiss, official warnings, and the expected impact on travel and daily life.

"Since the ground is frozen, the snow can already start accumulating on unsalted roads... just a few centimetres of snow will be enough to create slippery conditions."
"They have been running at full capacity for days due to the very cold temperatures – unfortunately, disruptions, such as delays and even cancellations, cannot be ruled out."
Switzerland is currently locked in a brutal meteorological vice as the first week of 2026 brings a staggering cold snap that shows no mercy. From the lowlands to the highest peaks, the country is shivering under sub-zero temperatures that have turned cities into iceboxes. The mercury has plummeted to a bone-chilling -11C in the capital of Bern, while the Dufourspitze in Valais records a terrifying -32C, marking the coldest point in the nation.
This is not merely a seasonal chill; it is a significant weather event. While sunny skies have prevailed in recent days, they mask the biting reality on the ground. Zurich and Basel are grappling with lows of -7C, and even the typically milder Lausanne sits at a freezing -5C. The official meteorological service, MeteoSchweiz, confirms that this "frigidly chilly" start to the year is affecting nearly every canton. Residents are urged to bundle up as this icy spell bites hard, with the cold expected to persist and intensify before any relief arrives.
Drivers beware: the danger on Swiss roads is escalating rapidly. Meteorologist Peter Wick has issued a stark warning for commuters, predicting that the combination of frozen ground and incoming precipitation will create lethal conditions. "Since the ground is frozen, the snow can already start accumulating on unsalted roads," Wick cautions, noting that even a few centimeters of accumulation will result in dangerously slippery surfaces.
The situation is set to deteriorate further on Thursday evening, with forecasts predicting the arrival of freezing rain—a driver's worst nightmare. This invisible threat creates black ice instantly upon contact with the frigid tarmac. While the snowfall in the lowlands may appear light initially, the impact on public safety is critical. Authorities are advising extreme caution, particularly in unsalted areas where traction is virtually non-existent. The message is clear: if you must drive, expect hazardous conditions and prepare for the worst.
Swiss Federal Railways (SBB) is waging an all-out war against the elements to keep the nation moving. In a massive logistical operation, the SBB has activated 7,500 switch heaters across its vast network, all burning at full capacity to prevent tracks from seizing up in the arctic temperatures. Despite these heroic efforts, the sheer intensity of the cold means commuters must brace for impact.
"Disruptions, such as delays and even cancellations, cannot be ruled out," admits SBB spokesperson Carmen Hefti. The infrastructure is being pushed to its absolute limit. While the heaters are working overtime, the relentless cold exposes the vulnerability of even the world's most efficient rail network. Travelers are strongly advised to check schedules immediately before departure, as the battle between Swiss engineering and Mother Nature continues to rage on the tracks.
While the cities shiver, the mountains are enduring a deep freeze of historic proportions. At altitudes above 2,000 meters, the cold is nothing short of ferocious. Skiers braving the slopes are confronting average temperatures of -13C, but in exposed areas, the wind chill bites even harder. St. Moritz in Graubünden has recorded a staggering -24C, a temperature that demands respect and proper preparation from anyone venturing outdoors.
This is not just a Swiss phenomenon; the cold snap is part of a deadly system wreaking havoc across the continent. Europe is reeling, with six weather-related deaths confirmed and transport chaos paralyzing major hubs like Schiphol and Paris. However, for the Swiss Alps, this extreme cold serves as a prelude to heavy precipitation. The frozen mountains are primed, waiting for the moisture that will transform these frigid temperatures into massive snow accumulation.
The week's icy grip is merely the opening act for a dramatic weekend finale. After a brief, deceptive rise in temperatures on Friday to between 4 and 7C, the mercury will crash once again on Saturday night, setting the stage for significant snowfall. MeteoSchweiz forecasts a "large low-pressure area" sweeping over north-central Europe, bringing a westerly current that will dump snow across the Swiss Plateau.
By Sunday midday, residents above 500–600 meters should prepare for a substantial 10 to 15 centimeters of fresh snow. This "White Sunday" will likely disrupt travel plans but offers a scenic end to a brutal week. As the snow line drops, the country will transition from a dry, biting cold to a classic winter wonderland—albeit a chaotic one. Switzerland remains on high alert; the weather is dynamic, dangerous, and far from over.