Climate and monthly weather forecast
Sanem, Luxembourg

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The climate of Sanem

Sanem, Luxembourg, experiences a marine west coast climate with warm summers, typically denoted as Cfb by the Köppen climate classification. This classification signifies mild summer temperatures and relatively consistent rainfall throughout the year. Sanem's geographical position contributes to the region's temperate climate, marked by a yearly temperature range from -0.9°C (30.4°F) to 22.8°C (73°F).

Throughout the year, Sanem presents an intriguing climatic picture. The lowest average temperatures occur in the winter months, from -0.9°C (30.4°F) in January to 4.6°C (40.3°F) in February. The mercury gradually ascends into the mild temperatures of spring, peaking in summer at an average high of 22.7°C (72.9°F) in July and 22.8°C (73°F) in August. In the transition to autumn, the temperatures subside, registering 18.5°C (65.3°F) in September and dipping down to 13.7°C (56.7°F) in October. The late autumn and early winter months post the lowest temperature averages, solidifying the yearly cycle of temperatures.

Rainfall in Sanem puts forth a different rhythmic pattern, favoring the middle of the year for the highest precipitation levels. May and June see an average rainfall of 64mm (2.52") and 69mm (2.72") respectively, contrasting with the comparatively lower 40mm (1.57") to 54mm (2.13") rainfall experienced during the autumn months. Skies in Sanem are most likely to be overcast during the winter months, with the highest relative humidity percentages recorded in December and January at 91% and 90%. In contrast, July and August exhibit lower relative humidity, measuring around 77%.

The best time to visit Sanem

Taking into account various weather factors, the optimal period for visiting Sanem can be identified as being between May and September. The average temperatures are comfortably warm, ranging from 16.8°C (62.2°F) to 22.8°C (73°F). In addition to favorable temperatures, these months record the longest daytime hours, providing ample sunlight for exploring the region. The average daylight hours during this period extend from 15.4 hours in May to a maximum of 16.2 hours in June, before diminishing to 12.6 hours by September.

The worst time to visit Sanem

Given the climatological conditions, the least favorable time to visit Sanem would be from December to February. During these winter months, temperatures sink to their lowest points with average lows hovering around -0.9°C (30.4°F) in January and 0.5°C (32.9°F) in December. The conditions are further exacerbated by increased rainfall, peaking at 75mm (2.95") in December. Coupled with the chill, frequent cloud cover and reduced sunshine hours (from 2.9 hours to 3.3 hours), the overall weather scenario is less than ideal for outdoor activities.

Spring weather in Sanem

Spring in Sanem, spanning from March to May, dishes out a gradual rise in temperatures from an average high of 9.3°C (48.7°F) in March, to a warmer 16.8°C (62.2°F) by May. Correspondingly, the average low temperatures also rise from 1.8°C (35.2°F) to 6.8°C (44.2°F). The season experiences an increase in daylight hours from 11.9 hours in March to 15.4 hours in May. Rainfall is fairly consistent, with about 39mm (1.54") to 64mm (2.52") precipitation over approximately 14 to 19 days.

Summer weather in Sanem

Summers in Sanem, extending from June through August, offer the warmest weather with average high temperatures from 20.3°C (68.5°F) to 22.8°C (73°F). Minimum temperatures hover between 10.3°C (50.5°F) and 12.6°C (54.7°F). June presents the longest daylight hours of the year at 16.2 hours. Sunshine hours peak at 8.7 hours in June and 9.5 hours in July. Rainfall is relatively high, with averages ranging from 47mm (1.85") to 69mm (2.72") over 16 to 18 days in a month.

Autumn weather in Sanem

Autumn, from September to November, witnesses a steady decrease in temperatures with average highs falling from 18.5°C (65.3°F) in September to 8°C (46.4°F) by November. Low temperatures also decrease with values from 9.5°C (49.1°F) down to 2.9°C (37.2°F). The daylight hours wind down from 12.6 hours in September to around 9.1 hours in November. Rainfall remains fairly consistent, around 40mm (1.57") to 54mm (2.13"), spread across 12 to 16 days.

Winter weather in Sanem

Winter sets in Sanem from December to February. The season is characterized by the coldest temperatures of the year, with average high temperatures ranging from 3.4°C (38.1°F) to 4.6°C (40.3°F). Correspondingly, the average lows plunge to between -0.9°C (30.4°F) and 0.5°C (32.9°F). December hosts the shortest daylight hours of the year, dropping down to 8.2 hours. Despite the low temperatures, rainfall averages remain consistent between 54mm (2.13") and 75mm (2.95") over approximately 14 to 17 days.

Weather in January

Sanem wakes up to a frosty January with lows dipping to -0.9°C (30.4°F), the lowest of the year, sheathed in misty landscapes with the highest relative humidity at 90%. The town experiences more snowfall compared to rainfall, coating everything in a crisp white layer. Weather in January »

Weather in February

February is a notch less cold than its predecessor January, with temperatures gradually incrementing. Snowfall in February somewhat subsides, giving way to more rain in Sanem. The town experiences an uptick in daylight, a hint of brighter and longer days ahead. Weather in February »

Weather in March

The arrival of March signals the onset of spring in Sanem. The temperatures start a vigorous climb, marking this month as much warmer compared to February. The standout month's value is the increased hours of daylight, soaring to almost 12 hours. Weather in March »

Weather in April

As Sanem progresses into April, the town luxuriates in the comforts of mild spring weather. Noticeably, temperatures rise substantially from March, paving the way for more outdoor activities. The rainfall in April is modestly distributed throughout the month, sustaining the relative humidity of the previous month. Weather in April »

Weather in May

With temperatures beginning to reach a warm 16.8°C (62.2°F), May starts hinting at the impending summer in Sanem. This month typically sees a surge in the number of sunshine days to 9.7, bathing the town in a warm glow. May also witnesses a noticeable increase in rainfall, ensuring the lush green landscapes are kept refreshed and thriving. Weather in May »

Weather in June

June, being the month receiving maximum daylight of 16.2 hours, heralds the height of summer in Sanem. With warming temperatures, daylight hours at their peak and relative humidity dipping slightly, June presents an ideal summer weather profile. Weather in June »

Weather in July

The vibrant month of July sees Sanem at the zenith of summer with the highest temperatures recorded at 22.7°C (72.9°F). Along with this, the town boasts its peak sunshine hours at 9.5. The balmy summer heat mixes with occasional rains, striking a pleasant balance. Weather in July »

Weather in August

August walks hand in hand with July in terms of temperature, showcasing similar climatic patterns. Despite high temperatures, the town witnesses a dip in rainfall, leading to a balance between temperature and precipitation. Sanem continues to enjoy high sunshine hours close to July levels, marking prolonged summer days. Weather in August »

Weather in September

As September sets in, temperatures in Sanem begin their descent, signifying the commencement of autumn. The month shines with the highest sunshine days in the year at 15.1, a last remnant of the summer. The balance between declining temperatures, and moderate rainfall, lay a scenic fall landscape. Weather in September »

Weather in October

With October, Sanem fully embraces the crisp autumn weather. Cooler temperatures bring about the much-anticipated fall foliage, transforming the town into an artist's palette. Rainfall somewhat subsides, and daylight hours shrink, a clear indication of winters lurking around the corner. Weather in October »

Weather in November

As November unfolds, temperatures plummet drastically from October, alerting Sanem of the incoming winter. November presents noticeable surge in wind speed to 13.2 KPH, intensifying the chill. The sign of snowfall reappears, signaling the quiet arrival of winter. Weather in November »

Weather in December

December plunges Sanem into the heart of winter. The month distinguishes itself with the highest rainfall of 75mm (2.95"), providing a misty wintery feel to the town. Dipping temperature, increased rainfall, and the return of more consistent snowfall truly signal the year-end festivities. Weather in December »
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Frequently asked questions

What time of the year is the coldest in Sanem?

January stands out as Sanem's coldest month, with an average high-temperature of 3.4°C (38.1°F) and a low-temperature of -0.9°C (30.4°F).

How much does it rain in Sanem?

Throughout the year, there are 187.2 rainfall days, and 636mm (25.04") of precipitation is accumulated.

When does it snow in Sanem?

Months with snowfall are January through May, October through December.

When does it snow the most in Sanem?

The month with the most snowfall in Sanem, Luxembourg, is January, when snow falls for 9.2 days and typically aggregates up to 85mm (3.35") of snow.

How much does it snow in Sanem?

Throughout the year, in Sanem, there are 32.5 snowfall days, and 279mm (10.98") of snow is accumulated.

What are the months with the lowest UV index in Sanem?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the driest month in Sanem?

The month with the least rainfall in Sanem, Luxembourg, is April, when the rain falls for 14.2 days and typically collects 39mm (1.54") of precipitation.

When it does not snow in Sanem?

June through September are months without snowfall.

When are the longest days in Sanem?

With an average of 16h and 12min of daylight, June has the longest days of the year in Sanem, Luxembourg.

What is the month with the highest UV index in Sanem?

The months with the highest UV index in Sanem are June and July, with an average maximum UV index of 5.

What month has the most sunshine in Sanem?

With an average of 9.5h of sunshine, July has the most sunshine of the year in Sanem, Luxembourg.

What are the warmest months in Sanem?

The warmest month in Sanem is August, with an average high-temperature of 22.8°C (73°F) and an average low-temperature of 12.6°C (54.7°F).

What is the least humid month in Sanem?

August is the least humid month in Sanem, with an average relative humidity of 76%.

When is Daylight Saving Time (DST) in Sanem?

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.

What is the most humid month in Sanem?

With an average relative humidity of 91%, December is the most humid month.

What is the rainiest month in Sanem?

The month with the most rainfall is December, when the rain falls for 17 days and typically aggregates up to 75mm (2.95") of precipitation.

What is the month with the shortest days in Sanem?

With an average of 8h and 12min of daylight, December has the shortest days of the year in Sanem, Luxembourg.

What is the month with the least sunshine in Sanem?

December has the least sunshine of the year, with an average of 2.9h of sunshine.

Average temperature
Sanem, Luxembourg

Average temperature - Sanem, Luxembourg

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (3.4°C).

The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).

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Average pressure
Sanem, Luxembourg

Average pressure - Sanem, Luxembourg

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).

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Average wind speed
Sanem, Luxembourg

Average wind speed - Sanem, Luxembourg

The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

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Average humidity
Sanem, Luxembourg

Average humidity - Sanem, Luxembourg

The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (76%).

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Average rainfall
Sanem, Luxembourg

Average rainfall - Sanem, Luxembourg

The wettest month (with the highest rainfall) is December (75mm).
The driest month (with the least rainfall) is April (39mm).

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Average rainfall days
Sanem, Luxembourg

Average rainfall days - Sanem, Luxembourg

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (12.5 days).

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Average snowfall
Sanem, Luxembourg

Average snowfall - Sanem, Luxembourg

The month with the highest snowfall is January (85mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days
Sanem, Luxembourg

Average snowfall days - Sanem, Luxembourg

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Sanem, Luxembourg

Average daylight / Average sunshine - Sanem, Luxembourg

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).

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).

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Average sunshine days
Sanem, Luxembourg

Average sunshine days - Sanem, Luxembourg

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8 days).

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Average UV index
Sanem, Luxembourg

Average UV index - Sanem, 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).

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Average visibility
Sanem, Luxembourg

Average visibility - Sanem, Luxembourg

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are November and December (7km).

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Sanem, Luxembourg

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