Luxembourg Weather: Mild Summers, Cool Winters, Year-Round Rain

Luxembourg has a temperate oceanic/contiental climate—mild summers, chilly winters, consistent precipitation.

Seasonal Breakdown

SeasonMonthsAvg TempCharacter
SpringMar–May4→14°C (39→57°F)Unpredictable; rain, occasional late snow
SummerJun–Aug17→18°C (63→64°F)Warmest; sunny spells, thunderstorms
AutumnSep–Nov14→4°C (57→39°F)Cool, wet, foggy; beautiful foliage
WinterDec–Feb1→2°C (34→36°F)Cold, cloudy, frequent rain/snow

Key Stats

  • Annual rainfall: ~750 mm (29.5 in)
  • Rainy days: ~150/year
  • Sunshine: ~1,600 hrs/year

Best Time to Visit

May–September for mild weather and outdoor activities. December for Christmas markets (popular despite cold).

Packing Advice

  • Layers, waterproof jacket, umbrella—year-round.
  • Warm coat, hat, gloves for winter.
  • Light clothing + rain gear for summer.

Luxembourg's climate is gentle—no extremes, but rarely dry for long.

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