Air temperature and precipitation anomalies at various locations in Luxembourg, compared to the climatic norms (1991-2020); Credit: ASTA/MeteoLux

On Monday 1 December 2025, Luxembourg’s Ministry of Agriculture, Food and Viticulture and MeteoLux published its Autumn 2025 report on precipitation in the Grand Duchy.

According to the report, Autumn 2025 across Luxembourg brought varied temperatures and substantial rainfall, with notable contrasts between regions as well as significant precipitation which influenced agriculture across the country.

Temperatures

In September, a number of weather stations recorded slightly below average values, while others remained close to the climatic norms. In October, all stations registered temperatures above seasonal averages. By November, most locations still reported higher than average temperatures, although a small number returned to values closer to the long-term means.

Precipitation

Autumn 2025 concluded with notably high rainfall totals with September producing exceptional precipitation at several sites, including: Asselborn (90.7 mm); Clemency (146.4 mm); Findel (198.5 mm); and Remich (99.9 mm). According to the data, October also remained wetter than average. However, the data for November showed drier conditions than seasonal norms.

During September, several areas registered record rainfall levels:

• Clemency: 211.6 mm (highest since 1907)

• Remich: 157.1 mm (highest since 1949)

• Findel: 265.1 mm (highest since 1947)

Heavy rainfall during the first twelve hours of September also caused flooding in the Alzette Valley near Pfaffenthal and Steinsel, with rainfall events later in the month producing localised flooding.

Agriculture

The report noted that the high precipitation disrupted the harvest of vegetables, fruit and maize, particularly on heavier soils. However, rapeseed yields benefited from the additional moisture and the apple harvest exceeded the seasonal average. A drier period in mid-October created favourable conditions for the sowing of winter cereals.

Overall, viticulture encountered a favourable season as the very wet September did not significantly impair grape quality because the preceding dry period supported ripening. Harvesting concluded earlier than in previous years.

The meteorological review drew upon records from Agrimeteo stations operated by the Administration of Technical Agricultural Services and from the MeteoLux station at Luxembourg-Findel Airport.