LuxembourgCountries Luxembourg September Temperatures
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Temperatures in September
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Luxembourg temperatures in September

In Luxembourg in September the average maximum daytime temperatures are pleasant and range from 18°C in Weiswampach to 20°C in Mondorf-les-Bains. Nighttime temperatures generally drop to 10°C in Mondorf-les-Bains and 9°C in Weiswampach.

What is the temperature of the different cities in Luxembourg in September?

To get a sense of September's typical temperatures in the key spots of Luxembourg, explore the map below. Click on a point for an in-depth look.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in Luxembourg?
    • From a thorough analysis of our records, Mondorf-les-Bains clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 20°C, and evenings that remain near 10°C.

  • What is the coldest city in September in Luxembourg?
    • According to our data, Weiswampach holds the title for the coldest city in Luxembourg in September. It experiences maximum temperatures of approximately 18°C and drops to lows of about 9°C during the night.

  • How much sun does Luxembourg get in September?
    • Most areas experience a moderate amount of sunshine, with approximately 172 hours of sunlight expected in Luxembourg. This makes it neither too gloomy nor overly bright.

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