Weather in Luxembourg City

Planning your trip or simply want to know the current weather in Luxembourg City? In this section, you will find the latest meteorological data, detailed forecasts, and visual charts to help you be prepared for any whims of nature.

The climate in Luxembourg City can be characterized as temperate oceanic, with four distinct seasons. There is no extreme heat or severe freezing here, making the city comfortable to visit at almost any time of year, although the weather can be quite changeable.

Summers, especially in July and August, are usually warm and pleasant, with average temperatures around 17-19°C and maximum values reaching 22-23°C. Winters, on the other hand, are cool and damp, with average temperatures just above zero (2-4°C) and frequent precipitation. Spring and autumn are transitional seasons with mild but often rainy weather.

One of the characteristic features of the climate in Luxembourg City is the relatively even distribution of precipitation throughout the year. Although the amount of rainfall in millimetres is not high, the number of days with precipitation is quite significant (from 10 to 17 days per month). This means that even in the sunniest months, it is worth being prepared for possible rain, so a light waterproof jacket or umbrella will be useful at any time of year.

The annual temperature progression in Luxembourg City demonstrates a moderate character without sharp extremes, making it attractive to visit in different seasons. The coldest month is typically January, when the average daily temperature holds at around 2.6°C. During this period, nightly lows can drop on average to 0.5°C, and daytime highs rarely rise above 4.6°C. Conversely, the peak of summer warmth usually falls in August, with an average temperature of 18.7°C. On August days, the thermometer averages 23.3°C, while nights remain quite warm with minimum temperatures around 14.1°C.

The summer months, from June to August, bring pleasantly warm weather to Luxembourg City, ideal for exploring the city and its surroundings. Average maximum daily temperatures range from 22.1°C in June to 23.3°C in August. Evenings and nights offer refreshing coolness: the air temperature drops on average to 12.5°C - 14.1°C. Such a diurnal temperature variation, amounting to approximately 8-10 degrees, is quite characteristic of the summer period in this region and allows for comfortable rest after daytime activities.

Winter in Luxembourg City, spanning from December to February, is characterized by cool and damp weather. Average temperatures during these months fluctuate slightly above zero: from 2.6°C in January to 4.1°C in February. Daytime maximum temperatures in winter are usually in the range of 4.6°C to 7.2°C. At night, the temperature regularly drops to marks of 0.5°C - 1.8°C, which means a high probability of light frosts, especially in January. Daily temperature fluctuations in winter are less pronounced compared to the summer period and average 4-6 degrees.

Although the total amount of precipitation in Luxembourg City is not high and is distributed fairly evenly throughout the year, as noted, the frequency of days with precipitation varies noticeably. There is no distinct rainy season or dry period in the classical sense, but some months bring more wet days than others, which affects the overall impression of the weather.

The highest number of days with precipitation traditionally falls in late autumn and winter. December leads in this indicator, bringing an average of 17 days with precipitation. It is followed by March (15 days), as well as January, October, and November, each of which counts about 14 days with precipitation. Given that average temperatures in the winter months (especially in January and December) hover around zero, this precipitation can fall not only as rain but also as snow or sleet, although most often it is light drizzle or short-lived rain.

Summer months, on the contrary, are characterized by fewer days with precipitation, although they cannot be called completely dry. July is the month with the lowest frequency of precipitation – on average only 10 days. In September and June, a comparatively smaller number of rainy days is also observed (11 and 12 respectively). Summer precipitation usually takes the form of short and not very intense rains, which can bring refreshing coolness on a warm day.

Regarding the total volume of precipitation, December with 4 mm is the month with the highest amount, while in April, May, July, and August, this figure is minimal – only 2 mm each. However, these differences in total volume are not as significant as the difference in the number of days with precipitation. Thus, when planning a trip to Luxembourg City, it is worth being prepared for the likelihood of precipitation at any time of year, but it happens especially often in the period from October to March.

When getting ready for Luxembourg City, remember that the weather here can be changeable at any time of year. The key advice is to dress in layers! This will allow you to easily adapt to temperature changes throughout the day, which can be noticeable. Indispensable companions will be comfortable shoes for long walks along the charming streets of the city and an umbrella or a light waterproof jacket. Even in the sunniest months, short-term rains are possible, as the number of days with precipitation remains significant throughout the year.

In the cold season, spanning the period from late autumn to early spring (roughly from November to March), when average temperatures range from 2°C to 10°C, and sometimes drop lower, be sure to pack warm outerwear. A winter coat or jacket, preferably with water-repellent properties, will be suitable. Don't forget a hat, scarf, and gloves, especially if your trip falls in January or February. Warm sweaters, fleece tops, and comfortable, possibly waterproof footwear will also be very handy, given the cool air and frequent precipitation, which in winter can also fall as sleet.

The summer months, from June to August, as well as the warmer days of spring (May) and autumn (September), usually delight with more comfortable weather. Average temperatures during this period stay around 17-19°C, and daytime highs can reach 22-23°C. For this time, you will need light clothing: t-shirts, shirts, dresses, shorts, or light trousers. However, evenings and nights can be quite cool (around 12-14°C), so a light sweater, cardigan, or windbreaker will still be useful. And although the sun will shine more often, don't forget sunscreen for clear days and that same compact umbrella in case of sudden summer rain.