Overview
- The German Weather Service expects widespread highs of 10–16°C with local peaks around 17–18°C along the Upper Rhine, and reports snowmelt even in higher areas.
- A succession of North Atlantic low-pressure systems and a strong jetstream are advecting very mild maritime air into Central Europe, while a re-strengthened polar vortex keeps Arctic cold locked to the north.
- DWD warnings note heavy rain on Alpine west-facing slopes—up to 30–40 liters per square meter in the Oberallgäu and Lindau districts—and gusty to stormy winds, including 60–80 km/h on mountain peaks.
- Forecasts indicate the mild, changeable pattern is likely to persist through the third Advent, with cloud and rain more common in the north and west and brighter spells toward the Alps.
- Meteorologists say the odds of a widespread white Christmas have dropped, though longer-range outcomes remain uncertain, and current warmth is still below the 24.0°C December record set in Müllheim in 1989.