Europe is experiencing a dramatic weather turnaround as November’s unusual chill yields to a warming trend with potentially intense storms on the horizon. As meteorological winter begins, the continent is shifting back to a more typical late-autumn pattern, but with noteworthy contrasts between regions.
The recent cold snap was due to an early disturbance of the polar vortex, causing plunging temperatures. However, this pattern is set to reverse with a new circulation establishing itself: deep low-pressure systems over the Atlantic will dominate Western Europe, while a strong high-pressure zone settles over Russia. This sets the stage for zonal winds from west to east bringing warm, moist ocean air and frequent fronts. As a result, the start of winter with cold, dry weather will be delayed.
Temperature-wise, the first two weeks of December are likely to see above-average warmth, especially in Western Europe and the Balkans, where some places may be up to 10°C warmer than usual. Yet this mildness comes with a price: heavy rainstorms are forecasted, particularly in mountainous coastal zones, where orographic rainfall could exceed 200 mm. Snow will largely be confined to higher altitudes given the warmth.
The looming storms carry powerful winds and surging waves, raising concerns of flooding and disruption. The Mediterranean region faces particularly volatile conditions with heavy downpours and occasional thunderstorms that may threaten vulnerable urban and agricultural areas. Northern and eastern parts of Europe, in contrast, are expected to see colder, drier spells with persistent east winds and prolonged freezing conditions, fostering classic winter scenes of snow and ice.
This regional divide—a cold north and wet south—stems from a combination of climatic drivers including a weak polar vortex, a moderating low-pressure belt over the Atlantic, and sea surface temperature patterns. These factors guide storm tracks southwards, intensifying rainfall in southern Europe while blocking cold air masses to the north.
Impacts will be widespread: northern populations should prepare for increased heating demands and possible travel chaos due to snow and ice, while southern communities must brace for flooding risks and storm damage. The forecast underscores the importance of readiness—updating emergency plans, winterizing homes, and staying informed through weather alerts.
For outdoor enthusiasts, ski resorts in northern and central Europe may enjoy early snow covers, yet many others should expect a December marked more by raincoats than snow boots. Overall, December 2025 promises to be a month of climatic contrasts, demanding vigilance and adaptability as Europe’s weather flips again.
