Climate and monthly weather forecastDellen, Luxembourg
Climate and monthly weather forecast
The climate of Dellen
Categorized by the Köppen climate classification as a Cfb zone, more specifically as marine west coast, with warm summer, Dellen enjoys a moderate climate. Given its geographical location of Luxembourg, the town experiences a blend of maritime and continental climate characteristics, striking a balance between oceanic influences and inland weather patterns.Throughout the year, temperatures in Dellen sees a substantial variation. During the winter months, average low temperatures plunge to -1.3°C (29.7°F), while the heat of summer pushes the mercury to an average high of 21.7°C (71.1°F) during the peak months. Precipitation in Dellen remains reasonably balanced with the variation from 36mm (1.42") per month in the drier periods to 70mm (2.76") in the wetter periods.
Relative humidity operates within an average range from 79% to 92%. Significant snowfall occurs, primarily from the period spanning between December and March, with the peaks reaching 78mm (3.07") in January and dropping to 0mm (0") in June. Additionally, wind speeds in Dellen fluctuate from the climatic norm of 9.8km/h (6.1mph) to 15.9km/h (9.9mph).
Uniquely, Dellen experiences longer daylight hours during the summer months, peaking at 16.3 hours in June, while December sees the shortest daylight span with 8.2 hours.
The best time to visit Dellen
Tourists desiring to experience Dellen in its warmest climate should visit between June and August. During these months, daily high temperatures regularly reach 19.2°C (66.6°F) to 21.7°C (71.1°F). Daylight also extends up to 16.3 hours during peak summer, offering ample time to explore local attractions and engage in activities.For visitors interested in the least amount of rainfall, Dellen enjoys its driest month in April, with an average of 36mm (1.42") of precipitation. Additionally, April offers average daily sunshine hours of 8.0, providing plenty of opportunities to soak in the natural surroundings.
The worst time to visit Dellen
Considering both temperature and precipitation, the least favorable period to visit Dellen extends from late autumn to early spring. Particularly, December upholds the record for the most precipitous month, with a 70mm (2.76") average rainfall. Moreover, the coldest month in Dellen is January, with average low temperatures plunging to -1.3°C (29.7°F), making outdoor activities relatively less enjoyable.Spring weather in Dellen
Spring introduces a gradual warming trend in Dellen. March finds the region shaking off winter's cold with average high temperatures of 8.4°C (47.1°F), rising to 15.9°C (60.6°F) by May. Average low temperatures also rise from 1.1°C (34°F) to 6.3°C (43.3°F) during this period. Precipitation ranges from 50mm (1.97") to 56mm (2.2"), while relative humidity dwindles to 83%.Summer weather in Dellen
Summer provides Dellen with its warmest and longest days of the year. Average high temperatures are between 15.9°C (60.6°F) in June and peak at 21.7°C (71.1°F) in August. Nighttime lows remain comfortable, from 10°C (50°F) to 11.8°C (53.2°F). Although summer is Dellen's wettest season with precipitation averaging from 50mm (1.97") to 66mm (2.6"), it also provides ample sunshine hours up to 9.2 a day, ensuring tourists have plenty of sunlight for their activities.Autumn weather in Dellen
Autumn experiences a dramatic cool-down after summer's warmth in Dellen. November sees average high temperatures dropping to 7.5°C (45.5°F) from the September high of 17.5°C (63.5°F). Night temperatures also dip, ranging from 8.5°C (47.3°F) in September to 2.5°C (36.5°F) in November. Precipitation gets a slight increase in the autumn months and ranges from 39mm (1.54") to 51mm (2.01").Winter weather in Dellen
Winter months in Dellen record the coldest temperatures and the highest precipitation. Average high temperatures don't rise above 4.1°C (39.4°F) and lows can dip to -1.3°C (29.7°F). Winter months also bring considerable snowfall, with peaks reaching as high as 78mm (3.07") in January. Daylight hours are shortest in winter, with averages ranging from 8.2 hours to 9.1 hours, while average sunshine hours drop to 2.9 hours/day, signaling darker and colder days.Weather in January
In Dellen, Luxembourg, the initial month of the year is marked by low temperatures and a covering of snow. As winter continues, expect colder conditions with the average high only at 2.7°C (36.9°F) and an average low of -1.3°C (29.7°F); snowfall is quite regular this month, accumulating 78mm (3.07") over 8.2 days. Weather in January »Weather in February
February in Dellen, Luxembourg still manifests the winter air, though there is a slight increase in the average temperature, paving the way for the incoming spring. The average high temperature nudges slightly up to 3.9°C (39°F), while the snowfall decreases to 55mm (2.17") over 8.3 days as compared with January. Weather in February »Weather in March
March represents a transition in Dellen, Luxembourg, with a significant shift in the weather pattern allowing the onset of spring. Warmer days start to appear with an average high temperature increasing to 8.4°C (47.1°F) while snowfall further reduces to 32mm (1.26"), indicating the end of the snowy season. Weather in March »Weather in April
The weather in April signifies the advent of spring in Dellen, Luxembourg, with noticeable improvements in temperature and daylight hours. The average high temperature springs up to 13.3°C (55.9°F) as the snowfall completely dwindens to a small 2mm (0.08") only. Weather in April »Weather in May
In Dellen, Luxembourg, the month of May presents a considerably warmer and vibrant weather due to its progression towards the summer season. The average high temperature escalates to 15.9°C (60.6°F), and at this point, snowfall is usually non-existent, marking the conclusion of any wintery remnants. Weather in May »Weather in June
June ushers in the summer season in Dellen, Luxembourg, with a warm and pleasant weather that encourages outdoor engagements. In this month, temperatures have risen to a comfortable average high of 19.2°C (66.6°F), and rainfall amounts to 66mm (2.6"), signifying a predominant turn towards wetter days. Weather in June »Weather in July
July is the warmest month in Dellen, Luxembourg, with the summer heat at its peak, bringing forth an enthusiastic vibe around the city. The weather joins the summer parade with the average high temperature reaching its peak at 21.6°C (70.9°F) and the city experiences an average of 50mm (1.97") of rainfall. Weather in July »Weather in August
In Dellen, Luxembourg, August continues to honor the summer season, showcasing long sunny days suitable for numerous outdoor activities. Although averaged highs are akin to July at 21.7°C (71.1°F), rainfall sees an increase to 56mm (2.2"). Weather in August »Weather in September
September marks the beginning of the fall season in Dellen, Luxembourg, characterized by a mild decrease in temperature, shorter daylight hours, and a surge of autumnal hues. September proffers a slight decline in average highs, dropping to 17.5°C (63.5°F), whereas rainfall registers a reduction to 39mm (1.54"). Weather in September »Weather in October
The arrival of October in Dellen, Luxembourg introduces a drastic change in the weather as autumn settles in with crisper days and cooler nights. The average high drops further down to 12.8°C (55°F) and rainfall slightly increases to 44mm (1.73"), fostering a pronounced, chilly atmosphere. Weather in October »Weather in November
In Dellen, Luxembourg, November brings with it a vivid transition from fall to winter, with temperatures continuing to drop and the city gearing up for the approaching cold. There's a significant change in the weather pattern as the average high descends to 7.5°C (45.5°F) and snowfall resurface at a modest 16mm (0.63"). Weather in November »Weather in December
December signals the heart of winter in Dellen, Luxembourg, replete with a lifestyle switching to holiday celebrations, indoor warmth, and the anticipation of a new year. The wintry condition returns in full swing with the year's coldest temperatures from 4.1°C (39.4°F) to 0.1°C (32.2°F) and considerable snowfall of 64mm (2.52"). Weather in December »Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest month in Dellen, Luxembourg, is January, with an average high-temperature of 2.7°C (36.9°F) and an average low-temperature of -1.3°C (29.7°F).
Throughout the year, there are 190.3 rainfall days, and 626mm (24.65") of precipitation is accumulated.
Months with snowfall are January through May, October through December.
January is the month with the most snowfall in Dellen, Luxembourg. Snow falls for 8.2 days and accumulates 78mm (3.07") of snow.
In Dellen, Luxembourg, during the entire year, snow falls for 30.3 days and aggregates up to 249mm (9.8") of snow.
The months with the lowest UV index in Dellen are January through March, November and December, with an average maximum UV index of 2.
The months with the lowest humidity in Dellen are April and August, with an average relative humidity of 79%.
The month with the least rainfall is April, when the rain falls for 14.5 days and typically collects 36mm (1.42") of precipitation.
June through September are months without snowfall.
With an average of 16h and 18min of daylight, June has the longest days of the year.
The months with the highest UV index in Dellen are June and July, with an average maximum UV index of 5.
July has the most sunshine of the year, with an average of 9.3h of sunshine.
Dellen's August weather, marked by an average high temperature of 21.7°C (71.1°F) and an average low temperature of 11.8°C (53.2°F), is the warmest in the year.
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.
December is the most humid month in Dellen, with an average relative humidity of 92%.
December is the month with the most rainfall in Dellen. Rain falls for 16.8 days and accumulates 70mm (2.76") of precipitation.
The month with the shortest days is December, with an average of 8h and 12min of daylight.
With an average of 2.9h of sunshine, December has the least sunshine of the year in Dellen.
Average temperature
Dellen, Luxembourg
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (2.7°C).
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure
Dellen, Luxembourg
- Average pressure in January:
1017.4mbar - Average pressure in February:
1016.2mbar - Average pressure in March:
1016.4mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.7mbar - Average pressure in August:
1016mbar - Average pressure in September:
1017.9mbar - Average pressure in October:
1017.3mbar - Average pressure in November:
1013.9mbar - Average pressure in December:
1018mbar
The month with the highest atmospheric pressure is December (1018mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed
Dellen, Luxembourg
- Average wind speed in January:
15.3km/h - Average wind speed in February:
15.9km/h - Average wind speed in March:
15.1km/h - Average wind speed in April:
11.9km/h - Average wind speed in May:
11.4km/h - Average wind speed in June:
10.9km/h
- Average wind speed in July:
10.4km/h - Average wind speed in August:
9.8km/h - Average wind speed in September:
10.3km/h - Average wind speed in October:
12km/h - Average wind speed in November:
13.8km/h - Average wind speed in December:
15.6km/h
The windiest month (with the highest average wind speed) is February (15.9km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity
Dellen, Luxembourg
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall
Dellen, Luxembourg
The wettest month (with the highest rainfall) is December (70mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days
Dellen, Luxembourg
- Average rainfall days in January:
14.5 days - Average rainfall days in February:
12.7 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
19.1 days
- Average rainfall days in July:
19.1 days - Average rainfall days in August:
18.1 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
15 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
16.8 days
The months with the highest number of rainy days are June and July (19.1 days).
The month with the least rainy days is February (12.7 days).
Average snowfall
Dellen, Luxembourg
The month with the highest snowfall is January (78mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Dellen, Luxembourg
- Average snowfall days in January:
8.2 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.1 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:
0.3 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
6.7 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Dellen, Luxembourg
- Average daylight in January:
8h and 42min - 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 48min - 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 12min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 18min - Average sunshine in August:
9h and 12min - Average sunshine in September:
7h and 54min - Average sunshine in October:
5h and 6min - Average sunshine in November:
3h and 24min - Average sunshine in December:
2h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days
Dellen, Luxembourg
- Average sunshine days in January:
10.3 days - Average sunshine days in February:
9.5 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
10.7 days - Average sunshine days in December:
9 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is June (8.1 days).
Average UV index
Dellen, Luxembourg
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Dellen, Luxembourg
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility
Dellen, Luxembourg
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are November and December (7km).
