Luxembourg in September, my pick for a first visit

When friends ask me when to go to Luxembourg for the first time, September is nearly always my answer. The heat of August has gone, the thunderstorms have largely packed up, schools in Britain and in Luxembourg are back by mid-month, and the Moselle spends the month picking grapes and throwing parties about it. Very little is closed yet. It’s hard to ask for more from a short break.

Settled, mild and mostly dry

Findel averages 14.3°C (58°F) in September, with 174.9 hours of sunshine and 66.6 mm of rain. The real change is in the storms, down to 2.3 on average after the seven or eight of high summer. Fog starts creeping back on the odd morning, nearly four days a month.

The range can be wide, as with any month on the cusp of autumn. On 15 September 2020 Findel hit 32.2°C (90°F), and on 30 September 1957 it slipped just below freezing, to −0.7°C. I’d pack layers, because the evenings turn cool quickly once the sun drops, and a light waterproof for the odd shower. The full series is in Luxembourg weather.

Why go to the Moselle in September?

Because this is harvest, and the river celebrates it. Grevenmacher puts on its grape and wine festival over the second weekend, a party that the government portal calls the biggest in the country, with the crowning of the Wine Queen, a parade and fireworks. A week later, on the third weekend, the villages of Wormeldange open their cellars for three days of Riesling Open and crown a Riesling Queen. In 2026 Schwebsingen added its own festival on the 6th and Remich its Crémant a Kultur Festival on the 20th.

One small thing I love is the Am Herscht circuit, about 6 km through the vines, which only runs during the harvest, serving Fiederwäissen, the young wine still fermenting, and onion tart. The whole calendar, through to October’s finale in Schengen, is in Luxembourg wine festivals.

If you are staying the night, see the best hotel deals in Remich for your dates: the well-placed rooms go fast.

The Schueberfouer’s last night

The Glacis funfair, open since 20 August, shuts in 2027 on Wednesday 8 September. On that final day, says Visit Luxembourg, rides are half price until 20:00, and at 22:00 fireworks go up on the Grand Duchess Charlotte Bridge, the Red Bridge linking the city to Kirchberg. If your trip starts in the first week of the month, I’d make a point of it. Opening times, history and getting there are in Schueberfouer.

Once the fair leaves, the Glacis gets its flea market back. The Glacismaart returns on the third Sunday of the month, from 10:00 to 17:00, with second-hand stalls, flowers and local produce.

A week of top-level cycling

The country’s big bike race is a September fixture too. In 2026 the 86th edition of the Tour de Luxembourg ran from 16 to 20 September, five stages and more than 700 km, starting from Place Guillaume II, with a queen stage from Wiltz to Diekirch and a time trial in Ettelbruck. Italy’s Davide Piganzoli won overall and Mathieu van der Poel took two stages. As of 30 September 2026 the organisers hadn’t announced the 2027 edition, so roadside fans should watch for it.

If you are staying the night, see the best hotel deals in Remich for your dates: the well-placed rooms go fast.

Holidays ending, seasons still running

Luxembourg’s school holidays end on 14 September 2027, and from then on there are far fewer families on the road. It’s when I’d walk the Mullerthal Trail, with good light and none of summer’s heat or storms; the service that carries luggage between stages keeps running until the end of November. The lakes close their official bathing season on 30 September (2026’s is over, and 2027’s opens on 1 May), and there are no bank holidays, so shops and museums keep normal hours.

Seasonal sights stay open all month and a little beyond. The Vianden chairlift runs until 19 October 2026, Grevenmacher’s butterfly garden opens daily until 31 October and The Family of Man, the photography exhibition at Clervaux Castle, keeps its season going until 1 January 2027. That’s why September is, for me, the best month to combine the capital with the north and the Moselle on one trip without finding doors shut. From the UK, Findel is the airport, the train comes in through Brussels or Paris, and the EES biometric check applies on your first entry.

Where it sits in the year

Arrive early in the month and you’ll catch the tail of Luxembourg in August, with the fair still open. Stay on and Luxembourg in October brings the Nuit des Musées and the end of the harvest. All three autumn months share a page in Luxembourg in autumn, and every month is compared in best time to visit Luxembourg.

So you do not lose the morning at the ticket office, browse tickets and tours in Remich on GetYourGuide.

If you would rather go at your own pace, see the car hire deals in Luxembourg: the earlier you book, the more cars are left to choose from.

Before you fix your dates, compare tickets to Luxembourg: the same journey can cost very different amounts from one day to the next.