September weather forecast
Luxembourg

September in Luxembourg marks the onset of autumn, bringing a noticeable decrease in temperatures compared to the summer months. During this month, temperatures typically range from 10°C (50°F) to 20°C (68°F). Luxembourg City, much like the rest of the country, starts to feel the cooler touch of autumn, while the Oesling region in the North experiences slightly lower temperatures due to its higher elevation.

Rainfall in September averages around 60mm (2.36"), similar to August. As the month progresses, however, the likelihood of rain increases, transitioning Luxembourg from the dry summer season to a wetter autumn. Despite the increased rainfall, there are still many clear, sunny days in September.

In comparison to August, September sees a decrease in temperature and daylight hours. The weather grows progressively cooler as the month progresses, and daylight hours shorten, indicating the gradual transition towards winter. Nonetheless, the relatively mild weather and the beginning of the autumn foliage provide a unique charm that continues to attract visitors to Luxembourg.

Looking forward to October, Luxembourg experiences further cooling, with temperatures typically ranging from 5°C (41°F) to 15°C (59°F). Precipitation levels remain relatively consistent, but the weather becomes more unpredictable, with an increased chance of rainy days. As the autumn season progresses, Luxembourg's landscapes transform into vibrant displays of red, orange, and yellow hues, offering stunning vistas and a unique appeal to the country.

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• Luxembourg City - September »
  In Luxembourg City in September, it is raining for 12.6 days, with typically 76mm (2.99") of accumulated precipitation. The advent of September brings a slight shift in average high-temperature, moving from an agreeable 22.8°C (73°F) in August to a comfortable 18.4°C (65.1°F).
• Differdange - September »
  In Differdange snow does not fall in June through September. On the first day of September in Differdange, sunrise is at 06:51 and sunset at 20:21.
• Dudelange - September »
  In Dudelange during September, the rain falls for 12.5 days and regularly aggregates up to 40mm (1.57") of precipitation. September marks the onset of autumn in Dudelange, Luxembourg and the weather starts to cool down from the summer highs to a maximum of 18.5°C (65.3°F).
• Ettelbruck - September »
  On the first day of September in Ettelbruck sunrise is at 06:50 and sunset at 20:20. With temperatures oscillating from 17.5°C (63.5°F) to 8.5°C (47.3°F), September in Ettelbruck witnesses the transition from summer to autumn.
• Diekirch - September »
  In Diekirch during September, the rain falls for 14.1 days and regularly aggregates up to 38mm (1.5") of precipitation. On the last day of September, in Diekirch, sunrise is at 07:33 and sunset at 19:17 CEST.
• Wiltz - September »
  In Wiltz in September, during 14.1 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Wiltz snow does not fall in June through September.
• Grevenmacher - September »
  In Grevenmacher during September, the rain falls for 9.6 days and regularly aggregates up to 26mm (1.02") of precipitation. On the last day of September, in Grevenmacher sunrise is at 07:32 and sunset at 19:16 CEST.
• Remich - September »
  In Remich in September, during 11.3 rainfall days, 35mm (1.38") of precipitation is typically accumulated. On the last day of September, in Remich, sunrise is at 07:32 and sunset at 19:16 CEST.
• Vianden - September »
  On the first day of September in Vianden sunrise is at 06:50 and sunset at 20:20. On the first day of September in Vianden, sunrise is at 06:50 and sunset at 20:20.
• Echternach - September »
  On the first day of September in Echternach sunrise is at 06:49 and sunset at 20:19. On the last day of September, in Echternach, sunrise is at 07:32 and sunset at 19:16 CEST.