Mild
Average highs are around 22°C, so days are mild rather than hot.
Weather Guide
Luxembourg Average Monthly Weather
Weather score32Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 13°C, sunshine averages 4.3h per day, and rainfall totals about 952mm. Sea temperatures average 0°C across the year.
Annual weather
Annual averages
Temp
13°C
Rain
952mm
Annual total
Sun
4.3h
Sea
0°C
Weather score
32
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 74mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.5h per day, enough for a balanced month.
Cool sea
Sea temperatures average 0°C, so the water can feel cool.
Map
Weather map
Compare Luxembourg with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August22°C average high
August is one of Luxembourg's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August74mm average rain
August sits on the drier side of Luxembourg's year, which helps with sightseeing and transfers.
Driest monthsJanuary to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6.5 hours average sun
August is brighter than Luxembourg's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August0°C average sea
August is close to Luxembourg's usual sea temperature, with limited seasonal change in the water.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
August52 weather score
August is one of Luxembourg's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
