August remains warm and is still within the high season for visitors, especially families on holiday. Some rainy or stormy days can interrupt otherwise sunny stretches. Expect lively towns and full restaurants, especially in tourist areas.
SeasonHigh SeasonTemperature 15 to 24°C (59 to 75°F)Crowds HighPrices High
High seasonShoulderLow season
Weather by City in August
CityLow / highRain
Luxembourg City
Mild
13°24° 60 mm
Esch-sur-Alzette
Cool
12°23° 57 mm
Dudelange
Cool
12°23° 57 mm
Schifflange
Cool
12°23° 56 mm
Walferdange
Cool
13°23° 58 mm
Bettembourg
Cool
12°23° 57 mm
Pétange
Cool
12°23° 57 mm
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Temperature map
-30°-20°-10°0°10°20°30°40°
Average temperature across Luxembourg in August.
Where to Go in Luxembourg in August
Northern Oesling
Ardennes
August continues warm and generally dry but retains the Oesling’s tendency to develop powerful afternoon thunderstorms that can drop heavy rain in a short time. Mornings are ideal for long ridge walks around the High Fens before cloud buildups make the afternoon unpredictable. Many small festivals and outdoor concerts fill weekends in villages like Wiltz; bring a good rain shell and layers for chilly evenings. Roads can be prone to flash runoff after heavy cells, so allow extra driving time.
Central Luxembourg & Gutland
Luxembourg City, Esch area
August continues summer warmth and festival energy; hot afternoons favour river terraces and green parks while evenings cool pleasantly. Stretches of more intense heat can push temperatures into the high 20s on rare days, but urban breezes across valleys usually moderate conditions. Many Luxembourgers head away on holiday late in August, so some smaller shops close for short breaks; check hours in advance. Light layers, sun protection, and a small water bottle are sensible companions.
Mullerthal / Eastern Sandstone
Little Switzerland, Echternach, Berdorf
August remains warm with balmy evenings that suit outdoor terraces and late-evening strolls through town centres; day temperatures can approach the mid‑20s during heat spells but the gorges stay relatively cool. This is the height of the walking season: trails are busy, especially on bank holidays, and car parks at trailheads fill early. Early-morning or late-afternoon hikes avoid the busiest hours and the hottest sun. Carry water, sun protection and a compact umbrella for sudden summer storms.
Moselle Valley (wine country) and Southern Hills
Remich, Grevenmacher, Schengen
August continues high summer warmth; river breezes can be pleasant in afternoons but humidity rises and thunderstorms remain possible. Harvest insect activity increases in late summer near ripening fruit, so light insect repellent helps on vineyard tours. The valley is busy with visitors and day-trippers; expect small delays on popular cycling routes and full terraces. Light layers for daytime comfort and a change of clothes for post-walk cellar visits are handy.
Events & Festivals in August
Schueberfouer
A historic funfair in Luxembourg City that runs from late August into early September with rides, food stalls and entertainment.
Planning a trip to Luxembourg?
See how August compares with the rest of the year, then read the full guide.
