Luxembourg - When to Visit

When to Visit Luxembourg

Climate guide & best times to travel

Monthly Climate Data for Luxembourg Average temperature and rainfall by month Climate Overview -6°C 3°C 12°C 21°C 30°C Rainfall (mm) 0 54 109 Jan Jan: 6.0°C high, -1.0°C low, 104mm rain Feb Feb: 9.0°C high, 20.0°C low, 38mm rain Mar Mar: 13.0°C high, 1.0°C low, 66mm rain Apr Apr: 15.0°C high, 3.0°C low, 56mm rain May May: 20.0°C high, 7.0°C low, 109mm rain Jun Jun: 25.0°C high, 10.0°C low, 46mm rain Jul Jul: 25.0°C high, 11.0°C low, 84mm rain Aug Aug: 25.0°C high, 12.0°C low, 81mm rain Sep Sep: 23.0°C high, 10.0°C low, 79mm rain Oct Oct: 17.0°C high, 6.0°C low, 104mm rain Nov Nov: 10.0°C high, 3.0°C low, 89mm rain Dec Dec: 6.0°C high, 1.0°C low, 64mm rain Temperature Rainfall
Luxembourg sits at a meteorological crossroads that most visitors underestimate. Tucked between Belgium, Germany, and France, the country experiences a temperate oceanic climate nudged toward continental, which in practice means four distinct seasons, rainfall spread fairly evenly across the year, and a summer that stays pleasantly warm without tipping into the kind of heat that sends you searching for shade. What makes Luxembourg's weather worth understanding before you arrive is less any single dramatic season and more the rhythm of it: a wet spring, a drier-than-expected June, a golden October that can flip suddenly cold, and winters that hover just around freezing rather than plunging hard. The rainfall pattern in Luxembourg tends to surprise people. You might expect summer to be dry and spring wet, and while that holds partially true, the data tells a more interesting story. May, January, and October are the three wettest months, each receiving around 100mm or more. June, by contrast, is one of the driest months of the year, something worth keeping in mind when planning a summer trip. July and August bring slightly more rain back, though usually in the form of afternoon thunderstorms that clear quickly rather than the grey drizzle that characterizes the wetter months. The humidity stays fairly constant across all twelve months, sitting around 70%, which means even summer never feels oppressive. Winters in Luxembourg are cold and often overcast, with temperatures hovering between -1°C (30°F) at night and 6°C (42°F) during the day in the depths of January and December. Snow is possible but not guaranteed; Luxembourg City's elevation and geography mean you're more likely to see frost and grey skies than a reliable white Christmas. Spring arrives gradually. March still feels more like a continuation of winter than a new season, with highs of 13°C (55°F) and overnight temperatures near freezing. By May, Luxembourg starts to feel alive again, though that month's higher rainfall means you'll likely encounter at least a few soaked afternoons in the Grund or along the Alzette valley.

Best Time to Visit

Recommended timing for different travel styles.

Beach
For beach holidays and outdoor relaxation, June through August is the clear window. June's low rainfall and highs reaching 25°C (77°F) make it arguably the most reliably pleasant month in Luxembourg for café terraces and walking the Chemin de la Corniche without getting rained on. July and August match that warmth but bring slightly more afternoon rain, so late-morning activities tend to work out better than evening plans that depend on staying dry.
Cultural
Travelers focused on cultural exploration, the National Museum of History and Art, the Bock Casemates, the old town quarter, will find April and May rewarding. The crowds are thinner than high summer, temperatures are comfortable in the mid-teens Celsius, and Luxembourg City's architecture looks good in the soft spring light. September works well for the same reasons on the back end of summer, with temperatures still reaching 23°C (73°F) and the tourist peak starting to ease off.
Hiking
For hiking the Mullerthal region or the Moselle valley trails, May through September gives you the longest days and the most reliable footing. That said, May's higher rainfall means trails can be muddy, so June, September, and early October might offer the best combination of dry paths, comfortable temperatures, and autumn color. October is worth flagging separately. Early October can be beautiful in Luxembourg's forested areas. But the month's 104mm of rainfall means you need to be prepared for wet days mixed in.
Budget
Budget-conscious travelers will find the clearest advantages in November through March. Accommodation in Luxembourg City, which trends mid-range to expensive even in shoulder season, tends to come down noticeably in this window, and the Christmas market period in December adds its own atmosphere to an otherwise quiet month. January and February are the quietest, fewer visitors and lower prices, though you'll want a proper winter coat and waterproof boots to enjoy the city rather than endure it.

What to Pack

Essentials and seasonal recommendations for Luxembourg.

Year-Round Essentials
A waterproof layer. Not a collapsible pocket umbrella but a proper rain jacket with a hood.
Luxembourg's weather is changeable enough that an umbrella becomes awkward on the city's hilly streets and forest paths.
Comfortable, waterproof walking shoes or ankle boots
Much of what makes Luxembourg worth visiting, the Chemin de la Corniche, the Bock Casemates, the Mullerthal trails, requires walking on uneven terrain that gets slippery when wet.
A versatile mid-layer (fleece or light down)
Handles the considerable temperature swings between seasons and between morning and evening within the same day.
A small daypack
rounds out the practical core.
Spring
Clothing
a light waterproof over-trouser for muddy trail days
Accessories
a warm hat for mornings that still feel like winter despite the calendar
Summer
Clothing
a couple of lighter layers
Accessories
Sunglasses
Layering Tip
Evenings in Luxembourg cool off noticeably even at the height of summer. Outdoor restaurants can get chilly after dark.
Autumn
Clothing
a proper mid-weight waterproof jacket, warm layers that can be added or shed as the day's weather shifts
Winter
Clothing
a warm coat
Footwear
boots with grip - the old town's stone streets get icy.
Accessories
gloves, a scarf
Plug Type
Type F (Schuko)
Voltage
230V, 50Hz
Adapter Note
Visitors from North America will need both a plug adapter and a voltage converter for most electronics, though modern laptop chargers and phone cables typically handle 100-240V automatically. Check the label on the device before assuming.
Skip These Items
Heavy formal attire unless your trip is specifically business-focused. Luxembourg's restaurants and cultural venues are smart-casual at most. Flip-flops are useless here across all seasons. A travel iron is redundant given that any accommodation in Luxembourg will either provide one or have wrinkle-resistant options covered. A large stand-alone umbrella is understandable but worth resisting. The wind on the Corniche makes it a liability rather than a solution.

Month-by-Month Guide

Climate conditions and crowd levels for each month of the year.

January

January feels like winter with intent: highs of 6°C (42°F) and overnight lows dipping to -1°C (30°F), with rainfall of around 104mm spread across the month. The city is grey and quiet, and the light doesn't last long. But the old town has a certain austere quality in winter that summer visitors never see.

High 6°C (42°F)
Low -1°C (30°F)
Rainfall 104mm
Crowds Low
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February

February warms slightly, with daytime highs nudging toward 9°C (48°F), and as it happens, it's one of the drier months of the year at just 38mm of rainfall. Nights remain cold. You'll notice Luxembourg City starting to shake off its winter quietness toward the end of the month.

High 9°C (48°F)
Low None
Rainfall 38mm
Crowds Low
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March

March sits in that ambiguous zone between seasons: highs reach 13°C (55°F) but overnight temperatures still drop to around 1°C (33°F), and 66mm of rainfall means you'll have some wet days. The first café terraces start appearing optimistically, often with outdoor heaters doing heavy work.

High 13°C (55°F)
Low 1°C (33°F)
Rainfall 66mm
Crowds Low to Medium
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April

April brings a genuine easing of winter's grip, with highs at 15°C (59°F) and a relatively modest 56mm of rainfall. The Alzette valley greenery starts to come through properly, and Luxembourg City's parks become pleasant places to walk.

High 15°C (59°F)
Low None
Rainfall 56mm
Crowds Medium
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May

May is complex. Highs reach a comfortable 20°C (68°F) and the country looks its best in spring color, but 109mm of rainfall makes it the wettest month of the year. You'll likely have lovely days interrupted by heavy downpours. Pack accordingly and embrace the rhythm.

High 20°C (68°F)
Low None
Rainfall 109mm
Crowds Medium to High
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June

June tends to catch people off guard with how good it is. Luxembourg in June offers highs of 25°C (77°F), lows of 10°C (50°F), and just 46mm of rainfall, the driest month outside of February. The long evening light and warm temperatures make the old town appealing for evening walks.

High 25°C (77°F)
Low 10°C (50°F)
Rainfall 46mm
Crowds High
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July

July mirrors June's warmth with highs at 25°C (77°F) and lows of 11°C (51°F), but rainfall climbs back to 84mm, mostly in the form of afternoon storms. Mornings stay clear and warm. Watch the sky from early afternoon. Storms roll in fast.

High 25°C (77°F)
Low 11°C (51°F)
Rainfall 84mm
Crowds High
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August

August stays warm at 25°C (77°F) highs and 12°C (53°F) lows, with 81mm of rainfall following a similar pattern to July. It's peak tourist season in Luxembourg, which in absolute terms is still modest compared to major European capitals. Queues remain short.

High 25°C (77°F)
Low 12°C (53°F)
Rainfall 81mm
Crowds High
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September

September opens Luxembourg's most underrated stretch. Highs drop to 23°C (73°F) and lows to 10°C (50°F), rainfall is 79mm, and the summer crowds start to thin while the temperatures remain comfortable. The Moselle wine region is harvesting. That adds appeal.

High 23°C (73°F)
Low 10°C (50°F)
Rainfall 79mm
Crowds Medium to High
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October

October demands respect. Highs fall to 17°C (62°F) and lows to 6°C (42°F), and at 104mm this is one of the wettest months. The Mullerthal forest turns copper and gold. On dry days the hiking is exceptional. Rain can last days. Pack layers.

High 17°C (62°F)
Low 6°C (42°F)
Rainfall 104mm
Crowds Medium
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November

November strips things back. Highs of 10°C (50°F) and lows of 3°C (37°F) with 89mm of rainfall make it a properly autumnal month. Luxembourg City's covered markets and indoor museums become central to any visit.

High 10°C (50°F)
Low 3°C (37°F)
Rainfall 89mm
Crowds Low to Medium
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December

December brings highs of 6°C (42°F) and lows of 1°C (33°F), with 64mm of rainfall that sometimes arrives as sleet or light snow. The Christmas market on Place Guillaume II draws visitors through December. That gives the month life.

High 6°C (42°F)
Low 1°C (33°F)
Rainfall 64mm
Crowds Low to Medium, with a spike around the market
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