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Grundhof Weather in September
September is one of the excellent months to visit Grundhof, with daytime temperatures of 20°C (68°F) and lows of 10°C (50°F) at night. Do note that quite a bit of rainfall is typical, averaging around 68 mm (2.7 in).
Rainfall in Grundhof in September
Past climate data indicates that roughly 14 days will see rain, totalling around 68 mm (2.7 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 Grundhof in September
The temperature in Grundhof in September is excellent. Daytime highs reach 20°C (68°F), with nights dropping to 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. 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 Grundhof in September
The area enjoys a balanced 155 hours of sunlight, ensuring it's neither too overcast nor too sunny.If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Grundhof.
Grundhof Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
46%
Precipitation
68 mm (2.7 in)
Rainy days
14 days
Sunshine
155 hours *
Percentage Sunshine
*
* Data from: Trier, Germany (23 KM, 14 Miles).
Grundhof Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grundhof - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Grundhof 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 records for Grundhof in September
Browse day-by-day weather records for Grundhof spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grundhof historical weather extremes in September
Based on weather observations in Grundhof between 1976 and 2026, these are the recorded extremes during September.
- The warmest day in September was on September 15, 2020, with a maximum of 33°C (91°F).
- The lowest daytime temperature in September was 9°C (48°F), recorded on September 21, 1977.
- Nighttime temperatures dropped to 2°C (36°F) on September 30, 2018, 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
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Grundhof in September
For Grundhof 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. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Grundhof in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming6/10 -
Cycling10/10 -
Walking10/10 -
Barbeque7/10 -
Camping4/10 -
Outdoor sports10/10
Grundhof 3-Day Forecast
More climate data for Grundhof
See the full Grundhof climate overview or explore weather in Luxembourg.
Popular in September
Where to go in September - average daytime high across popular destinations.
Mondorf-les-Bains
20°C (68°F) Remich20°C (68°F) Luxembourg20°C (68°F) Berdorf20°C (68°F) Vianden19°C (66°F) Echternach20°C (68°F) Clervaux19°C (66°F) Enscherange19°C (66°F) Bucket list
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