Climate and monthly weather forecastMarnach, Luxembourg
Climate and monthly weather forecast
The climate of Marnach
Marnach, Luxembourg, is nestled under the Köppen climate classification Cfb, signifying a marine west coast climate with a warm summer. Its weather conditions mirror its geographical position, affected largely by the harmonious transitioning seasons. The weather pattern manifests an interesting interplay of temperatures, ranging from a low average of -1.9°C (28.6°F) in the frigid peak of January to a high of 20.9°C (69.6°F) in the warm zenith of August.With the relative humidity primarily variegating from 79% in April to a saturation point of 92% in December and January, Marnach embodies a blend of wet and dry atmospheric states. The rainfall, which varies from a low of 31mm (1.22") in April to a peak of 66mm (2.6") in December, complements this metric. Noticeable is the absence of rainfall in the snow-laden months of November to March, where snowfall ensues instead, achieving its zenith at 105mm (4.13") in February.
Bathing in the soft hues of sunshine for up to 16.3 hours in June, decreasing to 8.2 hours in December, the daylight hours in Marnach are subject to seasonal variations. The ultraviolet index, however, remains fairly constant throughout the year, marking a gentle increase from 2 to 5 between January and July. Further weather metrics providing important insights include visibility, cloud percentage, atmospheric pressure, and wind speeds which demonstrate minor spring and autumnal variations.
The best time to visit Marnach
The best time to savour Marnach in all its glory is between May and September when the weather is most benign. The temperature during these months climbs gently from 15.5°C (59.9°F) to 20.9°C (69.6°F), providing a warm, comforting atmosphere. Furthermore, sunshine hours are abundant, with daily exposure ranging from 7.8 hours in May to a pinnacle of 8.8 hours from July to August. Despite the relatively high rainfall from 49mm (1.93") to 59mm (2.32") in these months, the proliferation of daylight and warmth makes this period ideal for outdoor exploration.The worst time to visit Marnach
The colder months from November to March may not be as hospitable to visitors, marked by harsher weather conditions. The temperature scales down to the frosty lows of -1.9°C (28.6°F) in January. The rainfall itself morphs into snowfall during this season, peaking at 105mm (4.13") in February, making travel potentially challenging. Depleted daylight hours, hovering from 8.2 hours in December to 9.1 hours in February, further contribute to potentially hindered exploration.Spring weather in Marnach
Spring in Marnach, from March to May, witnesses a delightful transformation. The temperature oscillates between 0.6°C (33.1°F) to 15.5°C (59.9°F), characterizing a remarkable shift from the residues of winter cold to the warmth of impending summer. Rainfall is moderately low, dropping to its yearly low of 31mm (1.22") in April, whereas the relative humidity dances from 79% to 83%. The daylight hours show a clear ascending trend, reaching up to 15.4 hours in May. Despite a moderate UV index of 2 in March to 3 in May, sunscreen is recommended.Summer weather in Marnach
The warmth cradles Marnach from June to August, with average temperatures stirring from 18.9°C (66°F) to 20.9°C (69.6°F). The rainfall increases slightly, peaking at 59mm (2.32") in June, though it is accompanied by sufficient daylight reaching up to 16.3 hours in the same month. Humidity levels remain somewhat high, wavering from 82% to 85%. However, the days are long and sunny, with sunshine duration extending from 8.2 hours in June to 8.8 hours in July and August, making outdoor activities a delight.Autumn weather in Marnach
During the transitional autumn period from September to November, temperatures dip progressively from 17.2°C (63°F) to 7.3°C (45.1°F). Rainfall shows a fluctuating pattern, with 34mm (1.34") in September rising to 45mm (1.77") in November. Observations show a gentle increase in relative humidity from 84% to 92%. Despite the falling leaves and temperatures, the daylight remains prominent, persisting from 12.6 hours in September to 9.1 hours in November, making the autumnal palette of colors vivid and inviting.Winter weather in Marnach
Winter descends on Marnach from December to February, bringing along frosty temperatures ranging from 3.9°C (39°F) in December to 2.4°C (36.3°F) in February. The distinctive feature of this season is the transformation of rainfall to snowfall. The realm of wintry details includes snowfall from 88mm (3.46") in December to a peak of 105mm (4.13") in February. Reduced daylight hours from 8.6 hours in December to 10.1 hours in February, coupled with humidity levels peaking at 92%, paint a classic, cold winter gestalt.Weather in January
As the new year brings chilly scenes in Marnach, Luxembourg, the weather typically ensues icy cold trains and a thick blanket of snow. January holds the record for the highest snowfall, with snow depths climbing to 81mm (3.19") and sparking a freezing delight for 10.3 days. Weather in January »Weather in February
As the calendar flips to February, the weather patterns in Marnach persist with the thematic cold of winter. A significant characteristic is snowfall, which decreases marginally from January to 105mm (4.13"), but still blankets the city for around 9.9 days. Weather in February »Weather in March
With the arrival of March comes subtle hints of spring in Marnach as the snowfall drops drastically to 53mm (2.09"). Warming up from the winter chill, the weather becomes perceptibly milder, reflected in the rise of average temperatures. Weather in March »Weather in April
April's weather in Marnach takes a leap towards the welcoming spring season, leaving winter far behind. With snowfall almost negligible at 5mm (0.2") and limited to a mere 0.9 days, the city experiences a clear transition into spring. Weather in April »Weather in May
The salient feature of May's weather in Marnach is the complete disappearance of snowfall, signalling the inception of the warmer months. The change in the city's climate is highlighted by not only clear skies but also an increase in mean temperatures. Weather in May »Weather in June
June in Marnach is a pure embodiment of summer, with warm temperatures and substantial daylight hours painting a balmy picture. A notable feature of June's weather is that it experiences the year's highest number of daylight hours, making it the brightest month for Marnach. Weather in June »Weather in July
July continues the reign of summer in Marnach, Luxembourg, with temperatures climbing to the year's maximum, peaking at an average high of 20.8°C (69.4°F). As the mercury rises, summer settles comfortably within the city’s terrain, endorsing long days by the pool and sizzling barbecues. Weather in July »Weather in August
As August unfolds, the weather in Marnach shifts subtly towards the latter part of summer, still bearing witness to warm temperatures. The highest temperature is marked similarly to July, plateauing at an average high of 20.9°C (69.6°F), retaining the summery vibes in Marnach. Weather in August »Weather in September
September in Marnach is suggestive of a transition to the mellower autumn season, with temperatures taking a slight dip to an average high of 17.2°C (63°F). This month marks the end of the long, hot summer days and the inception of the cool, crisp autumn weather. Weather in September »Weather in October
October’s weather in Marnach sees a visible transition to cooler temperatures and shorter daylight hours, epitomizing the charm of autumn. The fall season is in full swing with temperatures dropping to an average high of 12.2°C (54°F), changing the city's panorama to a mixture of comforting hues. Weather in October »Weather in November
As Marnach steps into November, the city plunges into the cold season with decreasing temperatures and the onset of snow. The chill in the weather becomes more pronounced with an average high temperature falling to 7.3°C (45.1°F). Weather in November »Weather in December
December in Marnach rings in the winter season with the reemergence of snowfall, accumulating up to 88mm (3.46") and transforming the cityscape into a winter wonderland for 7.3 days. The temperatures take a considerable plunge, indicating the onset of peak winter conditions. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Marnach, Luxembourg
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.4°C).
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).
Average pressure
Marnach, Luxembourg
- Average pressure in January:
1017.2mbar - Average pressure in February:
1016.1mbar - Average pressure in March:
1016.3mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.6mbar - Average pressure in August:
1015.9mbar - Average pressure in September:
1017.8mbar - Average pressure in October:
1017.2mbar - Average pressure in November:
1013.7mbar - Average pressure in December:
1017.7mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.7mbar).
Average wind speed
Marnach, Luxembourg
- Average wind speed in January:
15.7km/h - Average wind speed in February:
16.2km/h - Average wind speed in March:
15.2km/h - Average wind speed in April:
12.1km/h - Average wind speed in May:
11.6km/h - Average wind speed in June:
11.1km/h
- Average wind speed in July:
10.6km/h - Average wind speed in August:
9.9km/h - Average wind speed in September:
10.4km/h - Average wind speed in October:
12.2km/h - Average wind speed in November:
14km/h - Average wind speed in December:
15.9km/h
The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity
Marnach, Luxembourg
The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (79%).
Average rainfall
Marnach, Luxembourg
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is April (31mm).
Average rainfall days
Marnach, Luxembourg
- Average rainfall days in January:
11.4 days - Average rainfall days in February:
9.2 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
12.7 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
13.3 days
The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (9.2 days).
Average snowfall
Marnach, Luxembourg
The month with the highest snowfall is February (105mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Marnach, Luxembourg
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
9.9 days - Average snowfall days in March:
6.4 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
4.1 days - Average snowfall days in December:
7.3 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Marnach, Luxembourg
- Average daylight in January:
8h and 36min - Average daylight in February:
10h and 6min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 48min - Average daylight in May:
15h and 24min - Average daylight in June:
16h and 18min
- Average daylight in July:
15h and 54min - Average daylight in August:
14h and 24min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
9h and 6min - Average daylight in December:
8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
3h and 18min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 30min - Average sunshine in May:
7h and 48min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
8h and 48min - Average sunshine in August:
8h and 48min - Average sunshine in September:
7h and 24min - Average sunshine in October:
4h and 48min - Average sunshine in November:
3h and 18min - Average sunshine in December:
2h and 42min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days
Marnach, Luxembourg
- Average sunshine days in January:
11.1 days - Average sunshine days in February:
10.8 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12 days - Average sunshine days in September:
15 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
11.1 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Marnach, Luxembourg
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Marnach, Luxembourg
The month with the most cloud cover is December (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility
Marnach, Luxembourg
The month with the highest visibility is April (9km).
The months with the lowest visibility are November and December (7km).





