Müllerthal Weather in September
September in Müllerthal brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 67 mm (2.6 in), so pack an umbrella.
Rainfall in Müllerthal in September
Past climate data indicates that roughly 14 days will see rain, totalling around 67 mm (2.6 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Müllerthal in September
September is a perfect month in Müllerthal, with 20°C (68°F) during the day and 10°C (50°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 10°C (50°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Müllerthal in September
The month brings about 172 hours of sunlight, offering a comfortable mix of sun and overcast.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Müllerthal.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Luxembourg, check out our Müllerthal's climate page.
Müllerthal Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
45%
Precipitation
67 mm (2.6 in)
Rainy days
14 days
Humidity
76% *
Sunshine
172 hours *
Percentage Sunshine
42% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Müllerthal typically drop from around 20°C (68°F) at the start of September to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 12°C (54°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Müllerthal in September
Browse day-by-day weather records for Müllerthal spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Müllerthal historical weather extremes in September
Based on 49 years of weather observations in Müllerthal between 1976 and 2025, these are the recorded extremes.
- The warmest day in September was on September 15, 2020, with a maximum of 33°C (91°F).
- Müllerthal experienced its chilliest September day on September 21, 1977, reaching only 9°C (48°F).
- Müllerthal registered its coldest September night on September 20, 1978, with temperatures dropping to 2°C (36°F).
Best Places in Luxembourg in September
Find out more about the weather in Luxembourg and which places have the best travel conditions in this month. See all of Luxembourg in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Müllerthal in September
For Müllerthal in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Müllerthal in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Luxembourg, check out our Müllerthal's climate page.
Temperature Rainfall Sunshine Humidity
See the full Müllerthal climate overview or explore weather in Luxembourg.
