Luxembourg has a temperate oceanic/contiental climate—mild summers, chilly winters, consistent precipitation.
| Season | Months | Avg Temp | Character |
|---|---|---|---|
| Spring | Mar–May | 4→14°C (39→57°F) | Unpredictable; rain, occasional late snow |
| Summer | Jun–Aug | 17→18°C (63→64°F) | Warmest; sunny spells, thunderstorms |
| Autumn | Sep–Nov | 14→4°C (57→39°F) | Cool, wet, foggy; beautiful foliage |
| Winter | Dec–Feb | 1→2°C (34→36°F) | Cold, cloudy, frequent rain/snow |
May–September for mild weather and outdoor activities. December for Christmas markets (popular despite cold).
Luxembourg's climate is gentle—no extremes, but rarely dry for long.