Haller Weather in September
Haller in September sees pleasant temperatures, with highs around 20°C (68°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 67 mm (2.6 in) on average, so pack waterproofs just in case.
Rainfall in Haller in September
Typically around 14 days of rainfall are expected, averaging 67 mm (2.6 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Haller in September
September tends to be one of the perfect months in Haller, with 20°C (68°F) in the afternoon and 10°C (50°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 10°C (50°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Haller in September
The area experiences a moderate amount of sunshine, with approximately 172 hours of sunlight expected. This means a decent mix of sun and overcast.If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Haller.
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 Haller's climate page.
Haller Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
46%
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 Haller 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 Haller in September
Browse day-by-day weather records for Haller spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Haller historical weather extremes in September
Our historical data for Haller spans 1976 to 2025, revealing these weather extremes.
- The warmest day in September was on September 15, 2020, with a maximum of 33°C (91°F).
- The coldest September day was on September 21, 1977, with a maximum of 9°C (48°F).
- Nighttime temperatures dropped to 2°C (36°F) on September 20, 1978, marking the coldest September night on record.
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
poor
What to Wear in Haller in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Haller 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 Haller's climate page.
Temperature Rainfall Sunshine Humidity
See the full Haller climate overview or explore weather in Luxembourg.
