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Contents
- The climate of Luxembourg City
- The best time to visit Luxembourg City
- The worst time to visit Luxembourg City
- Spring weather in Luxembourg City
- Summer weather in Luxembourg City
- Autumn weather in Luxembourg City
- Winter weather in Luxembourg City
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average UV index
A scenic morning panorama of the rocky city of Luxembourg, in Luxembourg
The climate of Luxembourg City
Under the Köppen climate classification, Luxembourg City holds a Cfb classification, which is indicative of a marine west coast climate that exhibits a warm summer. Its geographical position, smack-dab in the heart of western Europe, contributes considerably to this classification.
A scan of the weather patterns across the year reveals a remarkable evenness, offering residents and visitors a steady range of weather experiences. The high temperatures drift upward starting from 3.1°C (37.6°F) in January, peaking at 23.2°C (73.8°F) in July, then tapering off by December back to 3.9°C (39°F). Similarly, low temperatures begin the year at a frosty -1.6°C (29.1°F), reach a favorable 13.3°C (55.9°F) between July to August, before dipping back to -0.5°C (31.1°F) in December.
Humidity levels also follow a predictable pattern in Luxembourg City. In January and December, the relative humidity peaks at 88%, whereas the lowest level of 67% is attained in July. Rainfall oscillates moderately, fluctuating between 58mm (2.28") in April and peaking at 87mm (3.43") in October. Rainfall days also follow a similar trend, from a low of 12.5 days in July to a peak of 18.3 days in January.
One unique aspect of Luxembourg's weather can be seen in the daylight hours. A brisk 8.7 hours in the dark January gives way to a staggering 16.2 hours in the brighter days of June, reducing once more to 8.2 hours as the year concludes in December.
A scan of the weather patterns across the year reveals a remarkable evenness, offering residents and visitors a steady range of weather experiences. The high temperatures drift upward starting from 3.1°C (37.6°F) in January, peaking at 23.2°C (73.8°F) in July, then tapering off by December back to 3.9°C (39°F). Similarly, low temperatures begin the year at a frosty -1.6°C (29.1°F), reach a favorable 13.3°C (55.9°F) between July to August, before dipping back to -0.5°C (31.1°F) in December.
Humidity levels also follow a predictable pattern in Luxembourg City. In January and December, the relative humidity peaks at 88%, whereas the lowest level of 67% is attained in July. Rainfall oscillates moderately, fluctuating between 58mm (2.28") in April and peaking at 87mm (3.43") in October. Rainfall days also follow a similar trend, from a low of 12.5 days in July to a peak of 18.3 days in January.
One unique aspect of Luxembourg's weather can be seen in the daylight hours. A brisk 8.7 hours in the dark January gives way to a staggering 16.2 hours in the brighter days of June, reducing once more to 8.2 hours as the year concludes in December.
The best time to visit Luxembourg City
If warmth and sunshine top the agenda for visitors planning a trip to Luxembourg City, it would be best to schedule the visit during the summer months of June, July, or August. It’s during this period that the temperate climate truly shines with temperatures peaking between 20.7°C (69.3°F) and 23.2°C (73.8°F). While the July humidity sits at the annual low of 67%, it provides a comfortable atmosphere for exploration. Meanwhile, sunshine hours peak at 8.1 in July, and daylight hours remain impressively robust at 15.82 hours in August.
The worst time to visit Luxembourg City
The winter months in Luxembourg City may put a damper on the prototypical tourism activities. January’s high temperatures of a mere 3.1°C (37.6°F) combined with a bitter low of -1.6°C (29.1°F) could potentially challenge outdoor adventure spirits. Furthermore, the relative humidity at this time is around the highest of the year at 87%.
Spring weather in Luxembourg City
The transformation of weather conditions from frigid winter to the clement spring in Luxembourg City is a gradual but noticeable shift. March sees the lowest temperatures rise from a chilly 1.6°C (34.9°F) to an agreeable 8.4°C (47.1°F) by May while the monthly high temperatures elevate from 9.1°C (48.4°F) to 17.8°C (64°F) in the same period. The hours of daylight jump from a lukewarm 11.9 to a radiant 15.4 between the start and end of spring. Visitors to the city during spring can expect steadily decreasing levels of rainfall and subsequently fewer rainfall days.
Summer weather in Luxembourg City
Luxembourg City's summer presents the most favorable weather conditions. Temperatures hover between 20.7°C (69.3°F) to 23.2°C (73.8°F) during its peak in July. The UV index reaches 7 between June and July, encouraging sunbathing enthusiasts and outdoor lovers. The summer whittles down the rainfall days to its annual minimum of 12.5 in July.
Autumn weather in Luxembourg City
During autumn, Luxembourg City transitions from warm summers into cooler temperatures with highs oscillating from 18.4°C (65.1°F) in September to 7.3°C (45.1°F) in November. Low temperatures dip noticeably from 10°C (50°F) in September to a crisp 2.2°C (36°F) in November. Autumn also brings increased rainfall with an elevation from 76mm (2.99") in September to a peak of 87mm (3.43") in October. The days become progressively shorter, shrinking from 12.6 daylight hours in September to 9.1 hours in November.
Winter weather in Luxembourg City
Finally, winter sets in Luxembourg City with high temperatures descending from 7.3°C (45.1°F) in December to 3.1°C (37.6°F) by February, while low temperatures plunge from -0.5°C (31.1°F) to -1.6°C (29.1°F) in the same period. The daylight hours dwindle to an annual minimum of 8.2 hours in December while sunshine hours hit the yearly low of 1.3 in December as well. Winter also sees the highest number of rainfall days with peaks of 18.3 days in January. Despite these dreary winter conditions, the City of Luxembourg holds a certain charm, appealing to those who prefer the serenity of winter landscapes.
Weather in January
January in Luxembourg City, Luxembourg, is characterized by frosty mornings and gloomy days. It is the coldest month of the year with average low temperatures plunging to -1.6°C (29.1°F) and highs only reaching 3.1°C (37.6°F). Weather in January »
Weather in February
In February, the temperature in Luxembourg City begins its gradual ascent from the freezing point. A noticeable increase in daylight hours and sporadic peeps of sunshine hint at the impending arrival of spring. However, layers of warm clothing remain a staple, considering the chilling winds and the frosty nights that continue to characterize this month. Weather in February »
Weather in March
March brings with it the official onset of spring in Luxembourg City with temperatures ranging from 1.6°C (34.9°F) to 9.1°C (48.4°F). Fields take on a verdant hue as new buds spurt and tender blooms unfold their petals. The frosty air thaws, replaced with the fresh scent of blooming flowers punctuating the air. Weather in March »
Weather in April
April in Luxembourg City sees a continuation of the spring warmth, coaxing people outdoors. Temperatures climb between 4.4°C (39.9°F) to 13.3°C (55.9°F), inviting locals and visitors to enjoy a myriad of outdoor activities. Rains frequent the city, creating a mystical mist and pronouncing the freshness of greening landscapes. Weather in April »
Weather in May
The arrival of May brings sunnier days and warmer temperatures, inviting a myriad of outdoor events in Luxembourg City. On average, the city records rainfall of 79mm (3.11"), making it the image of classic spring showers. The parks dance with shades of green, highlighted by colorful blossoms, as locals and visitors flock to embrace the blossoming landscapes. Weather in May »
Weather in June
June brings the onset of summer to Luxembourg City. The average low temperature rolls upto 11.1°C (52°F) and precedes a steady march towards the warm peak. The blend of warm days and cool nights makes the city's playgrounds and parks a delightful sight. Weather in June »
Weather in July
In Luxembourg City, July is the warmest month with temperatures ranging from 13.3°C (55.9°F) to 23.2°C (73.8°F). As summer reaches its zenith, the increase in daylight and sunshine hours encourages many outdoor activities. The city's parks become picnic hot spots and the mineral-laden Moselle river is a delight for water enthusiasts. Weather in July »
Weather in August
August maintains the summer highs in Luxembourg City with an average high temperature hovering at 22.8°C (73°F). The city bridges the gap between the warmest and the rainiest months of the year. Spectacular sunrises and sunsets at this time of the year add a touch of gold to the city's architecture. Weather in August »
Weather in September
September in Luxembourg City is a transition month, marking the beginning of autumn. The temperament of weather changes, bidding farewell to the summer heat and welcoming cooler climes. The high temperature averages around 18.4°C (65.1°F), making the days more conducive for wanderers and explorers. Weather in September »
Weather in October
October in Luxembourg City heralds the true onset of autumn. The city brims with hues of yellow, orange, and red, presenting an enchanting autumn landscape. Crisp mornings and cool afternoons recommend light wraps and jackets for comfort. Weather in October »
Weather in November
As November blankets Luxembourg City, the effects of autumn begin to dwindle, making way for winter. The city takes a solemn appearance, with the last leaves falling and trees standing bare against the grey skies. Nippy mornings ensue as the temperature drops to a 2.2°C (36°F) low on average. Weather in November »
Weather in December
December brings the year to a close in Luxembourg City with the advent of winter. The city takes on a festive glow, with Christmas markets and holiday lights adorning the streets. Despite an average high temperature at 3.9°C (39°F), the city springs to life, outlining the lively spirit of the Luxembourgers. Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Luxembourg City?
January, known for its average high temperature of 3.1°C (37.6°F) and an average low temperature of -1.6°C (29.1°F), is the coldest month in Luxembourg City.
How much does it rain in Luxembourg City?
In Luxembourg City, Luxembourg, during the entire year, the rain falls for 182.3 days and collects up to 897mm (35.31") of precipitation.
When is the lowest UV index in Luxembourg City?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
What is the driest month in Luxembourg City?
The month with the least rainfall in Luxembourg City is April, when the rain falls for 15.5 days and typically collects 58mm (2.28") of precipitation.
When are the longest days in Luxembourg City?
June has the longest days of the year, with an average of 16h and 12min of daylight.
What is the month with the highest UV index in Luxembourg City?
June and July, with an average maximum UV index of 7, are months with the highest UV index.
What time of the year is the hottest in Luxembourg City?
July, with its average high-temperature of 23.2°C (73.8°F) and an average low-temperature of 13.3°C (55.9°F), holds the record as the warmest month in Luxembourg City, Luxembourg.
What is the least humid month in Luxembourg City?
July is the least humid month in Luxembourg City, Luxembourg, with an average relative humidity of 67%.
What month has the most sunshine in Luxembourg City?
With an average of 8.1h of sunshine, July has the most sunshine of the year in Luxembourg City.
What is the wettest month in Luxembourg City?
October is the month with the most rainfall. Rain falls for 14.4 days and accumulates 87mm (3.43") of precipitation.
When is Daylight Saving Time (DST) in Luxembourg City?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the most humid month in Luxembourg City?
November and December, with an average relative humidity of 88%, are most humid months.
What is the month with the shortest days in Luxembourg City?
December has the shortest days of the year in Luxembourg City, with an average of 8h and 12min of daylight.
What is the month with the least sunshine in Luxembourg City?
December has the least sunshine of the year, with an average of 1.3h of sunshine.
Average temperature
Luxembourg City, Luxembourg
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (3.1°C).
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-1.6°C).
Average humidity
Luxembourg City, Luxembourg
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is July (67%).
Average rainfall
Luxembourg City, Luxembourg
- Average rainfall in January:
76.6mm - Average rainfall in February:
62.5mm - Average rainfall in March:
69.1mm - Average rainfall in April:
58.2mm - Average rainfall in May:
78.5mm - Average rainfall in June:
79.9mm
- Average rainfall in July:
71mm - Average rainfall in August:
75.4mm - Average rainfall in September:
76.3mm - Average rainfall in October:
86.8mm - Average rainfall in November:
76mm - Average rainfall in December:
86.7mm
The wettest month (with the highest rainfall) is October (86.8mm).
The driest month (with the least rainfall) is April (58.2mm).
Average rainfall days
Luxembourg City, Luxembourg
- Average rainfall days in January:
18.3 days - Average rainfall days in February:
15 days - Average rainfall days in March:
16.6 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
16 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
12.5 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
14.4 days - Average rainfall days in November:
16.4 days - Average rainfall days in December:
16.9 days
The month with the highest number of rainy days is January (18.3 days).
The month with the least rainy days is July (12.5 days).
Average daylight / Average sunshine
Luxembourg City, Luxembourg
- Average daylight in January:
8h and 4min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 5min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 1min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
1h and 4min - Average sunshine in February:
3h and 0min - Average sunshine in March:
4h and 0min - Average sunshine in April:
6h and 1min - Average sunshine in May:
6h and 5min - Average sunshine in June:
7h and 4min
- Average sunshine in July:
8h and 1min - Average sunshine in August:
7h and 2min - Average sunshine in September:
5h and 2min - Average sunshine in October:
3h and 2min - Average sunshine in November:
1h and 5min - Average sunshine in December:
1h and 2min
The month with the most sunshine is July (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average UV index
Luxembourg City, Luxembourg
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).
Luxembourg City, Luxembourg
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