Luxembourg Weather in August

August weather

August feels warm rather than fiercely hot in Luxembourg City. Afternoons can suit a walk along the Pétrusse Valley paths or an outdoor café in the Grund, while cooler evenings are pleasant for dinner outside. The average high is 24°C, but showers are common: expect rain on about 13 days.

Cloud and passing rain can interrupt long outdoor plans, so don't count on a full day of sunshine. If the weather turns, visit the National Museum of History and Art in the old town instead of heading for a long walk.

Events and holiday closures

The Schueberfouer, Luxembourg City's big annual funfair, usually opens in late August and continues into September. Head to the Glacis fairground for rides, food stalls and a lively evening out. It draws plenty of visitors, especially once the fair is running.

August 15 is Assumption Day, a public holiday. Some shops may close, so check before making a special trip. Museums and restaurants can have different opening hours.

Crowds and getting around

August is a busy summer month, with school holidays bringing more visitors to the old town and popular cafés. Accommodation can cost more than in quieter months, while July is also a peak summer choice. September is often calmer, though it's still a popular time to visit.

If you hate crowds, explore the Bock Casemates early, then cross to the Grund later in the day.

A useful local tip: Luxembourg's buses, trams and trains are free. Take the tram towards Kirchberg, then walk back towards the centre past the Mudam museum and the Philharmonie.