Wiltz Weather in September
Thinking of visiting Wiltz in September? Expect pleasant temperatures reaching 19°C (66°F) during the day, dropping to 9°C (48°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Wiltz in September
Looking at the last 30 years, the data shows about 15 days with rain, averaging 77 mm (3 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Wiltz in September
Temperatures in Wiltz in September top out at 19°C (66°F) and drop to 9°C (48°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Wiltz in September
With about 172 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Wiltz.
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 Wiltz's climate page.
Wiltz Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
19°C (66°F)
Chance of Rain
50%
Precipitation
77 mm (3 in)
Rainy days
15 days
Humidity
76% *
Sunshine
172 hours *
Percentage Sunshine
42% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Wiltz typically drop from around 20°C (68°F) at the start of September to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°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 Wiltz in September
Browse day-by-day weather records for Wiltz spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Wiltz historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Wiltz.
- Wiltz recorded its highest September temperature of 32°C (90°F) on September 15, 2020.
- Wiltz experienced its chilliest September day on September 25, 2025, reaching only 9°C (48°F).
- The coldest night in September in Wiltz was on September 6, 1993, with a minimum of 0°C (32°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
poor
What to Wear in Wiltz 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Wiltz 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 Wiltz's climate page.
Temperature Rainfall Sunshine Humidity
See the full Wiltz climate overview or explore weather in Luxembourg.
