September · Luxembourg
Best time to visit Clervaux in September Weather, crowds & prices
Weather in Clervaux in September
Average temperature 15°C, 94 mm of rain, about 9 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.2/10
Ranked #5 of 12 months
- Avg temp
- 15°C
- Rainfall
- 94 mm
- Humidity
- 77%
- Days with 6h+ sun
- 9
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Clervaux scores 7.2/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 15°C, 94 mm of rain, and roughly 9 days with 6+ hours of sunshine this month.
Clervaux nestles in the Ardennes with a castle hosting the Family of Man photo exhibition and forest walking country. Best window: late spring through early autumn.
September in Clervaux: strong conditions, 5th of 12
September averages 15°C (59°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 94 mm, so plan one flexible day in three; you still get about 9 days with 6+ hours of sunshine and 12.4 hours of daylight.
It scores 7.2/10 here, 5th of 12 months, against 8.9/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? July scores 1.7 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Clervaux in September?
- In September, Clervaux averages 15°C, 94 mm of rain, and about 9 days with 6+ hours of sunshine. Its climate-comfort score is 7.2/10.
- Is September a good time to visit Clervaux?
- September earns a 7.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Clervaux in September?
- Expect about 94 mm of rain in September. Average humidity is 77% and there are about 9 days with 6+ hours of sunshine.
Curated in Clervaux
Tickets & experiences
Things to do in Clervaux
Clervaux, Luxembourg. Live activities and tours from GetYourGuide, matched to this destination.