December is a decent shoulder option for Luxembourg City: fewer crowds, some trade-offs. Expect daytime highs around 5°C, nights near 0°C and roughly 12 rainy days across the month. Cold, damp 5C days and festive lights, with the Winterlights Christmas markets in full swing across the central squares until just after Christmas. A small ice rink and a Ferris wheel appear on Place de la Constitution, crowds pick up on market weekends, and the free panoramic lift gives a fine view over the lit valley.
Day high
5°C
Night low
0°C
Rainy days
≈ 12
Verdict
Fair
December is quieter, which makes it the right month to afford the splurge picks.
Landmark stay€€€Townhouse palace on the square · Ville Haute
A five-star hotel spread across a row of restored 18th-century townhouses right on Place d'Armes, the liveliest square in the Upper Town. Its fine-dining restaurant La Cristallerie holds a Michelin star, and every headline sight is a few minutes on foot.
from ~300 EUR/night
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Couples€€All-suite boutique near the palace · Ville Haute
An all-suite boutique hotel set in three 18th-century houses steps from the Grand Ducal Palace, hung throughout with contemporary art. The generous suites and quiet Upper Town lanes make it a calm base in the middle of everything.
from ~190 EUR/night
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First visit€€Art Deco landmark by the station · Gare
A landmark 1930s hotel in a grand stone building directly across from the central station, so the free buses to the airport and the old town leave from your doorstep. Its wood-panelled Brasserie Guillaume is a long-standing city institution for seafood.
from ~140 EUR/night
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Budget€Modern valley hostel · Grund
A modern HI hostel down in the Pfaffenthal valley beneath the casemate cliffs, with dorms and private rooms at the lowest rates in the city. The free Pfaffenthal panoramic lift carries you straight up to the Upper Town in seconds.
from ~30 EUR/night
Check pricesReal hotel photos · prices are indicative from-rates, not live quotes · booking links support the site at no extra cost
With 12 rainy days and highs of 5°C, build your December days around indoor anchors and treat sunny windows as a bonus.
The Grund and Neumunster Abbey
TipTake the free public lift down from the Plateau du Saint-Esprit into the Grund, the lower town in the Alzette valley, where the old Neumunster Abbey is now the Neimenster cultural centre with concerts and a cafe courtyard. Time a visit for late afternoon so you can walk the riverside and settle at a canal-side bar as the ramparts light up above.
MUDAM Luxembourg
TipThe Grand Duke Jean Museum of Modern Art was designed by I.M. Pei and set inside the old Fort Thungen on the Kirchberg plateau, its glass wings rising from the fortress walls. Tickets run around 8 to 10 EUR and it closes one day a week, usually a weekday, so check the calendar first, and leave time for the light-filled Pei atrium and the cafe.
National Museum of History and Art
TipThe MNHA on the Marche-aux-Poissons runs from Roman-era finds and medieval treasures up to modern art across several floors in the heart of the old town. It usually closes on Mondays and offers free or reduced entry on National Museums Day in mid-May, so check the date, and start in the archaeology basement to follow the city's timeline in order.
National Museum of Natural History
TipThe natur musee sits down in the Grund by the Alzette, a hands-on natural history museum that is a reliable rainy-day or family stop. Entry is low-cost and it usually closes on Mondays, so pair it with the free lift down into the valley and a riverside walk rather than making a separate trip up and down.
Ready to plan the full trip? Start from the 2-day Luxembourg City itinerary.
December is a decent shoulder option for Luxembourg City: fewer crowds, some trade-offs. Expect daytime highs around 5°C, nights near 0°C and roughly 12 rainy days across the month. Cold, damp 5C days and festive lights, with the Winterlights Christmas markets in full swing across the central squares until just after Christmas. A small ice rink and a Ferris wheel appear on Place de la Constitution, crowds pick up on market weekends, and the free panoramic lift gives a fine view over the lit valley.
Typical December days in Luxembourg City reach about 5°C, dropping to around 0°C at night. Layers work best.
Count on roughly 12 days with rain in December. Plan one indoor block per day and keep museum tickets as your fallback.