Luxembourg Climate

Last updated: January 18, 2025

Luxembourg experiences a Cfb climate according to the Köppen-Geiger classification, characterized by mild and moderately wet conditions. The temperature ranges from a notably low -12°C (11°F) in March to a striking 38°C (101°F) during the summer month of July. On average, the annual temperature hovers around 10°C (51°F), illustrating the region's broad thermal variability throughout the year. This climatic pattern significantly influences the local ecosystem and lifestyle, contributing to the rich biodiversity and cultural vibrancy found in Luxembourg.

Luxembourg temperature by month

In Luxembourg, temperature patterns exhibit distinct seasonal trends throughout the year. The winter months of January and February are characterized by cold conditions, with minimum temperatures dipping as low as -12°C (11°F), while the average temperatures remain below 5°C (41°F). As spring approaches, March and April witness a gradual warming, with average temperatures rising to 10°C (49°F) by April, and maximum values reaching 27°C (80°F), signaling the onset of milder weather. The summer months of June and July mark the hottest period, where average temperatures peak around 19°C (67°F), and maximum temperatures can soar to a scorching 38°C (101°F). Subsequently, in August, temperatures begin to decline slightly, although they still maintain a warm profile. The arrival of autumn brings cooler temperatures, as seen in September and October, where averages drop to around 15°C (59°F), and minimums hover just above 0°C (32°F). This cyclical temperature evolution underscores the dynamic climate in Luxembourg, offering a rich tapestry of weather conditions across the seasons.

Monthly Temperatures in Luxembourg, Luxembourg

The chart illustrates Luxembourg's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec363943495664666659524239
Data source: Luxembourg temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

Strassen experiences a minimum temperature of -11°C (12°F) in March and a maximum of 38°C (100°F) in July, while Luxembourg records a similar minimum of -11°C (13°F) in March and a slightly higher maximum of 38°C (101°F) in July. For more details on the climate in Strassen, visit monthly temperatures in Strassen, and for Luxembourg, see monthly temperatures in Luxembourg.

Precipitation Patterns in Luxembourg

Precipitation in Luxembourg exhibits notable variability throughout the year, with the highest rainfall observed in December, totaling approximately 117 mm (4.6 in) across 18 days of rain. The winter months, particularly January and February, also experience significant precipitation, averaging around 70 mm (2.7 in) and 73 mm (2.9 in) respectively, over 11 days each month. As spring transitions into summer, March witnesses an increase in precipitation, peaking at 77 mm (3.0 in), but the following months of April and June see a slight dip, averaging 40 mm (1.6 in) and 71 mm (2.8 in), showcasing the climate's seasonal fluctuation.

During the summer months, July and August maintain similar precipitation levels at 71 mm (2.8 in) and 62 mm (2.4 in), indicating a relatively dry period compared to earlier months. The onset of autumn in September brings rainfall back up to 61 mm (2.4 in). Notably, October returns to higher figures with 76 mm (3.0 in) over 11 days, while November's precipitation levels drop slightly to 68 mm (2.7 in) over 12 days. This pattern reflects a climate marked by substantial seasonal shifts in both frequency and intensity of rainfall, contributing to Luxembourg's lush landscapes and diverse ecosystems.

Monthly Average Precipitation in Luxembourg, Luxembourg

The average monthly precipitation in Luxembourg, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec7073774070717162617668117
Data source: Luxembourg precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
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Sunshine Duration in Luxembourg

In Luxembourg, sunshine duration displays a clear seasonal pattern that reflects the transition from winter to summer. The year begins with January offering a modest 104 hours of sunshine, which gradually increases as spring approaches. By March, sunshine hours rise significantly to 250 hours, and by April, this figure almost doubles to 348 hours. The peak months of June and July showcase the sunniest conditions, with sunshine durations hitting their highest at 407 hours and 409 hours respectively. This dramatic increase underscores the longer daylight hours of summer and the region's capacity to harness solar energy during these months.

As summer transitions into autumn, sunshine hours begin to taper off, with August still retaining a respectable 383 hours before a notable decline begins. September drops to 313 hours as the days shorten, and by October, sunlight further reduces to 233 hours. The latter part of the year continues this trend, with November catching just 171 hours and December dropping back to 109 hours. This cyclical pattern illustrates how Luxembourg's climate shifts not only in temperature but also in the availability of sunlight, significantly impacting both the natural environment and residents' everyday lives.

Monthly Sunshine in Luxembourg, Luxembourg

Monthly sunshine duration represents the total hours of direct sunlight Luxembourg receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec104h190h250h348h383h407h409h383h313h233h171h109h
Data source: Luxembourg sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Luxembourg UV Index Trends

The UV Index in Luxembourg exhibits significant seasonal variability, reflecting the changing strength of sunlight throughout the year. During the winter months, namely January and February, the UV Index remains relatively low, at 2 and 3 respectively, indicating minimal risk of harm from unprotected sun exposure, with suggested burn times of 45 and 30 minutes. As spring unfolds into April, the UV Index climbs to 6, entering a high exposure category with a reduced burn time of 25 minutes, and continues to increase, reaching a peak of 8 in May. This transition signals the arrival of more intense sunlight and the need for effective sun protection strategies as outdoor activities increase.

During the summer months, the UV Index peaks at 9 in June, maintaining a very high exposure category with a burn time cut down to just 15 minutes. July and August follow closely, sustaining an index of 8. This intense UV radiation reinforces the importance of sun safety measures, as prolonged exposure can lead to skin damage. As autumn sets in, the index begins to decrease, indicating lower risks with values returning to 6 in September and dropping further in October. The year concludes with a return to low UV levels in November and December, reflecting the seasonal variations in sun strength and highlighting the ongoing need for awareness and protection during peak summer months.

Monthly Maximum UV Index for Luxembourg, Luxembourg

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Luxembourg. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Luxembourg UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Daylight Hours in Luxembourg

In Luxembourg, daylight duration exhibits a pronounced seasonal shift, beginning with approximately 8 hours in January. As the year progresses into February, the duration of daylight increases to 10 hours, setting the stage for the longer days of spring. By March, daylight extends to 11 hours, and this upward trend continues into April with 13 hours of daylight. The month of May brings a significant boost, with daylight lasting 15 hours, which peaks in **June at 16 hours. This gradual increase highlights the longer, brighter days that characterize the late spring and early summer, allowing residents ample time to engage in outdoor activities.

As summer transitions into autumn, daylight gradually begins to wane. July still offers 15 hours of daylight, but by August, this decreases to 14 hours. The decline continues into September with 12 hours, reflecting the shortening days of early fall. By October, daylight reaches 10 hours, and as winter takes hold, November sees it drop to 9 hours, before falling back to 8 hours in December. This cyclical rhythm of daylight duration not only shapes Luxembourg's seasonal landscape but also influences daily life, recreational opportunities, and the overall mood of its inhabitants throughout the year.

Average Monthly Daylight Hours in Luxembourg, Luxembourg

This chart shows the total daylight hours Luxembourg receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec518h606h715h826h922h973h946h859h752h641h543h490h
Data source: Luxembourg daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Luxembourg's Popular Destinations

Luxembourg experiences a temperate maritime climate with significant variations throughout the year. Winters are cold, with January temperatures ranging from -9°C to 13°C and an average of 2°C, while summers can be quite warm, especially in July, where temperatures can reach up to 38°C. Precipitation is distributed fairly evenly, with notable rainfall in December (118 mm) and a consistent average of around 70 mm from June to November. Sunshine hours peak in summer, particularly in July, with approximately 410 hours of sunlight, making the warm months ideal for outdoor activities. For more detailed information, visit Luxembourg climate.

Strassen, Luxembourg, experiences a temperate climate characterized by distinct seasons and moderate rainfall. Winter months, particularly January and February, can be cold with minimum temperatures dropping to -9°C (15°F), while summers reach high averages of around 19°C to 34°C (66°F to 93°F) in July and August. Precipitation is fairly consistent throughout the year, peaking in December at 128 mm (5.0 in), and sunshine hours are most abundant in the summer, with June receiving approximately 409 hours. For detailed climate information, visit the link: Strassen climate.

Conclusion

In conclusion, Luxembourg's climate and environmental characteristics display a remarkable interplay of temperature, precipitation, sunshine duration, UV index, and daylight hours throughout the year. The region experiences distinct seasonal variations that significantly influence both the natural landscape and the lifestyle of its residents. From the cold, shorter days of winter, where sunlight and heat are minimal, to the vibrant, sun-soaked stretches of summer filled with longer days, Luxembourg offers a diverse climatic experience. Understanding these patterns is essential for optimizing outdoor activities, ensuring proper sun protection, and appreciating the unique beauty that each season brings. Such knowledge not only enhances quality of life but also fosters a greater awareness of the ecological rhythms in this picturesque European country.

Discover the Climate of Luxembourg's Places

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