Climate and monthly weather forecastSandweiler, Luxembourg
Climate and monthly weather forecast
The climate of Sandweiler
The weather in Sandweiler, Luxembourg, is characterized by a marine west coast climate with a warm summer, known by the Köppen climate classification as Cfb. Sandweiler experiences a wide range of weather conditions throughout the year due to its location in the northern hemisphere.Monthly temperatures are diverse throughout the year ranging from -1.2°C (29.8°F) during the colder months to sizzling highs of up to 22.6°C (72.7°F) during the summer months. Besides, inhabiting one of Europe's more humid regions, relative humidity stands between the high range of 76% to 91% throughout the year. Rainfall exhibits a similar pattern with monthly averages fluctuating from 33mm (1.3") to 61mm (2.4"), with a noticeably increased amount of rain experienced during the summer months. Furthermore, brightness also fluctuates significantly with the hours of sunlight ranging from 3.5 hours during the darker winter months to a high of 9.7 hours during the long days of summer.
Through year-round, Sandweiler has a unique weather patterns and conditions. December stands out as the month with the highest rainfall experienced, at 61mm (2.4"). During winter, between November to March, the town experiences a noticeable amount of snow with an annual peak snowfall of 71mm (2.8") reported in December. Simultaneously, the months from January to April, November and December, record lower than average temperatures, but more notably, January experiences extremely freezing temperatures of -1.2°C (29.8°F) on average.
The best time to visit Sandweiler
Optimal visit periods to Sandweiler are primarily dictated by the preferred weather conditions of an individual. July and August are recommended for those seeking higher temperatures; during these months, the town experiences the highest temperatures averaging at 22.6°C (72.7°F). At the same time, sunshine hours are at a peak, ranging between 9.5 hours to 9.7 hours. Furthermore, the amount of rainfall is less, with averages from 45mm (1.77") to 49mm (1.93"), providing for dry and warmer weather conditions. Notably, these warmly received temperatures could provide a hospitable setting for outdoor activities and sightseeing.The worst time to visit Sandweiler
Timing a visit to Sandweiler during the months of January and February may be less enjoyable due to the harsh weather conditions. These months are characterized by the lowest average temperatures, averaging from -1.2°C (29.8°F) to -0.9°C (30.4°F). Moreover, these months register the least daylight hours with an average of between 8.2 hours to 10.1 hours indicating a shorter duration for outdoor activities. Additionally, February experiences high snowfalls of up to 53mm (2.09") further predisposing visitors to cold conditions.Spring weather in Sandweiler
Spring in Sandweiler comes with a mix of mild weather and a received respite from the extreme winter temperatures. As spring progresses, temperatures steadily rise, incrementing from an average low of 1.4°C (34.5°F) in March to an average high of 14.1°C (57.4°F) in April. Rainfall averages fluctuate from 41mm (1.61") to 33mm (1.3") marking the receding winter. Spring in Sandweiler also witnesses a decrease in snowfall, eventually coming to a halt by April.Summer weather in Sandweiler
Summer in Sandweiler is the dry season, with warmer temperatures experienced from May to August. During these months, temperatures register between 16.7°C (62.1°F) to 22.6°C (72.7°F). Significantly, this is the period that receives the highest hours of sunlight, moving from 15.4 hours to 16.2 hours, potentially advocating for more outdoor activity hours. Despite being the warmly received dry season, an average rainfall between 53mm (2.09") to 49mm (1.93") is experienced.Autumn weather in Sandweiler
As autumn sets in, temperatures start to decline gradually. From September to November, the minimum temperature decreases from 9°C (48.2°F) to 2.7°C (36.9°F), matched with a relative reduction in the maximum temperature from 18.5°C (65.3°F) to 7.8°C (46°F). Rainfall creeps up in this period, fluctuating from 35mm (1.38") to 44mm (1.73"). Sunshine hours also reduce from 8.1 hours to 3.7 hours.Winter weather in Sandweiler
Winter in Sandweiler tends to be quite chilly with average temperatures of between -1.2°C (29.8°F) to 4.5°C (40.1°F). This period also records the highest levels of rainfall and snowfall. Rainfall averages sit at around 44mm (1.73") to 61mm (2.4") and snowfall ranging from 15mm (0.59") to 71mm (2.8"). Furthermore, sunshine hours are at their fewest, from 3.1 hours to 3.5 hours, indicating shorter days and longer nights.Weather in January
In Sandweiler, Luxembourg, the weather in January remains relatively cold, where snowfall is a frequent event, achieving an average of 63mm (2.48"). Compared to the preceding December, an increased level of precipitation is noticed, resulting in the transformation of the landscapes into a winter wonderland. Weather in January »Weather in February
February continues to carry forward the cold weather from January, with moderately lower snowfall of 53mm (2.09") and comparable temperature ranges. The weather remains relatively stable throughout the month, normalized by a slightly increased sunshine duration, providing a more open sky for daytime activities. Weather in February »Weather in March
March brings an obvious transition from winter to spring in Sandweiler. Notable is the shift in precipitation form with rainfall replacing snowfall during the month, while the mean temperature rises to 9.1°C (48.4°F). Precipitation is characterized by lighter showers, engendering the sprouting of spring flowers. Weather in March »Weather in April
April is characterized by the full bloom of spring in Sandweiler, where trees and flowers are rich in color and fragrance. Compared to March, the city observes comparatively milder temperatures, minus the snowfall, and steady rainfall conducive for plant growth. Weather in April »Weather in May
May in Sandweiler brings about warmer weather, with greenery enhancing the city's aesthetic charm. An increase in mean temperatures to 16.7°C (62.1°F) denotes a significant climb towards the summer season. This month offers one of the highest daylight hours in the year, making it ideal for outdoor leisure and sports activities. Weather in May »Weather in June
June marks the beginning of summer in Sandweiler, offering longer daylight hours and increasing the city's overall vibrancy. Despite the comparable temperature with May, 20.1°C (68.2°F) on average, the increase in UV index to 5 makes sun protection a necessity. Weather in June »Weather in July
July proves to be the hottest month in Sandweiler with the monthly averages peaking at 22.6°C (72.7°F). Compared to the preceding June, the city experiences an increase in temperatures and maintains relatively high daylight hours. Weather in July »Weather in August
August carries forward the warmth and sunshine-filled days from July but offers a very slight decrease in the temperature. The preserved summer weather continues to keep the city's green spaces vibrant and inviting. Relative to July, the final full summer month sees an almost constant level of daylight duration. Weather in August »Weather in September
September signals the beginning of autumn in Sandweiler, with the average temperatures dropping to 18.5°C (65.3°F). The change from August is marked by reduced daylight hours, though the city continues to enjoy ample sunshine. Weather in September »Weather in October
October is famous for its gorgeous show of fall colors in Sandweiler. Relative to September, there is a noticeable decrease in temperature, a shortened daylight duration, and a change in precipitation patterns. Despite these changes, October still presents generous sunshine hours and vivid landscapes, inviting autumn lovers to explore the city. Weather in October »Weather in November
November in Sandweiler is marked by a colder climate with the mean temperature dropping to 7.8°C (46°F). In comparison to October, the city experiences a decrease in sunlight duration and a shift to more wintry weather. The cityscape starts casting off its autumn colors, with bare trees waiting to be adorned by the first snowfall. Weather in November »Weather in December
December brings the long-awaited winter to Sandweiler, with a significant increase in snowfall reaching 71mm (2.8"). Compared to November, this month presents a more severe climatic change with a shorter daylight duration. The city wraps in a cover of snow, adding festive charm to its holiday preparations. 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
In Sandweiler, Luxembourg, the average lowest temperatures are observed in January, with a high of 3.2°C (37.8°F) and a low of -1.2°C (29.8°F).
Throughout the year, there are 171.5 rainfall days, and 545mm (21.46") of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Sandweiler, Luxembourg, during the entire year, snow falls for 28 days and aggregates up to 235mm (9.25") of snow.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
April is the month with the least rainfall. Rain falls for 13.5 days and accumulates 33mm (1.3") of precipitation.
June through September are months without snowfall in Sandweiler, Luxembourg.
The month with the longest days in Sandweiler is June, with an average of 16h and 12min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 5.
July and August are identified as the warmest months in Sandweiler, Luxembourg, with an average high-temperature of 22.6°C (72.7°F).
July has the most sunshine of the year, with an average of 9.7h of sunshine.
The least humid month in Sandweiler is August, with an average relative humidity of 76%.
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.
With an average relative humidity of 91%, December is the most humid month.
December is the month with the most rainfall in Sandweiler, Luxembourg. Rain falls for 15.1 days and accumulates 61mm (2.4") of precipitation.
The month with the most snowfall in Sandweiler is December, when snow falls for 5.9 days and typically aggregates up to 71mm (2.8") of snow.
December has the shortest days of the year in Sandweiler, Luxembourg, with an average of 8h and 12min of daylight.
The month with the least sunshine in Sandweiler is December, with an average of 3.1h of sunshine.
Average temperature
Sandweiler, Luxembourg
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (3.2°C).
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).
Average pressure
Sandweiler, Luxembourg
- Average pressure in January:
1017.7mbar - Average pressure in February:
1016.4mbar - Average pressure in March:
1016.5mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.8mbar - Average pressure in August:
1016.1mbar - Average pressure in September:
1017.9mbar - Average pressure in October:
1017.5mbar - Average pressure in November:
1014.1mbar - Average pressure in December:
1018.2mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).
Average wind speed
Sandweiler, Luxembourg
- Average wind speed in January:
14.4km/h - Average wind speed in February:
15.2km/h - Average wind speed in March:
14.6km/h - Average wind speed in April:
11.5km/h - Average wind speed in May:
11km/h - Average wind speed in June:
10.5km/h
- Average wind speed in July:
10.3km/h - Average wind speed in August:
9.6km/h - Average wind speed in September:
10.1km/h - Average wind speed in October:
11.4km/h - Average wind speed in November:
12.9km/h - Average wind speed in December:
14.7km/h
The windiest month (with the highest average wind speed) is February (15.2km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity
Sandweiler, Luxembourg
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (76%).
Average rainfall
Sandweiler, Luxembourg
The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (33mm).
Average rainfall days
Sandweiler, Luxembourg
- Average rainfall days in January:
12.8 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
18 days - Average rainfall days in June:
17.7 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
13.8 days - Average rainfall days in December:
15.1 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (10.8 days).
Average snowfall
Sandweiler, Luxembourg
The month with the highest snowfall is December (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Sandweiler, Luxembourg
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.4 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:
0.4 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
5.9 days
The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sandweiler, 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 12min
- 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 48min - 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 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
3h and 30min - Average sunshine in February:
3h and 54min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 6min - Average sunshine in October:
5h and 18min - Average sunshine in November:
3h and 42min - Average sunshine in December:
3h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days
Sandweiler, Luxembourg
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
12.3 days - Average sunshine days in December:
11 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is June (10.4 days).
Average UV index
Sandweiler, 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, November and December (UV index 2).
Average cloud cover
Sandweiler, Luxembourg
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Sandweiler, Luxembourg
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
