Luxembourg weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: May – September
What is the weather like in Luxembourg in August?
In August, Luxembourg is warm: daytime highs average 23 °C, and nights cool down to about 14 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 64 mm in total. All in all, August is a good month for a holiday in Luxembourg.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 78 | 78 | 76 |
| Day | 23° | 23° | 19° |
| Night | 14° | 14° | 10° |
| Sun | 7 h | 7 h | 5 h |
| Rain days | 11 | 11 | 10 |
More details for August
- Daylight
- 14 h 31 min06:25 – 20:56
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 59 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Luxembourg
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %63 %
- Few rainy daysweight 30 %51 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Luxembourg in August: quick answers
Is Luxembourg hot in August?
Warm rather than hot: in August, daytime highs in Luxembourg average 23 °C and nights cool to about 14 °C. On about 2 days the thermometer climbs to 30 °C or more.
Does it rain much in Luxembourg in August?
Rain is frequent, with about 11 rainy days and 64 mm in total.
Luxembourg month by month
The whole year in LuxembourgAll destinations: LuxembourgWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences