Our verdict
The best time to visit Luxembourg is July
The warmest month of the year in Luxembourg is July, where the average temperature gets to around 23℃ (73℉), but temperatures can reach as high as 25℃ (77℉) on the hottest days in summer. In the winter, temperatures can get down to -5℃ (23℉) around January.
If you’re keen to see the sights of Luxembourg during the day, the sun stays up the longest around July. The wet season in Luxembourg falls around December, so if you prefer the dryer weather, you should look to visit in April instead.
Learn everything you need to know (and none of the stuff you don’t) about when to go to Luxembourg below. Be sure to check out the handy tools we’ve included to help you search for flights and transport, accommodation, and everything else you need to plan and book your trip.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Luxembourg seasons
Before you continue, it’s important to know when the seasons are in Luxembourg as they might be different to yours depending on where in the world you’re travelling from. Luxembourg is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Luxembourg
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Luxembourg for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Luxembourg climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Luxembourg for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Luxembourg in January
- Average temperature: 1℃ (34℉)
- Average high temperature: 3℃ (38℉)
- Average low temperature: -1℃ (30℉)
- Average humidity: 90%
- Average sunny days: 12 days
- Average rainfall: 43mm (2") over 13 days
- Average snow days: 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Luxembourg in February
- Average temperature: 2℃ (35℉)
- Average high temperature: 4℃ (40℉)
- Average low temperature: -1℃ (30℉)
- Average humidity: 87%
- Average sunny days: 12 days
- Average rainfall: 44mm (2") over 11 days
- Average snow days: 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Luxembourg in March
- Average temperature: 5℃ (41℉)
- Average high temperature: 9℃ (48℉)
- Average low temperature: 2℃ (35℉)
- Average humidity: 81%
- Average sunny days: 15 days
- Average rainfall: 41mm (2") over 13 days
- Average snow days: 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Luxembourg in April
- Average temperature: 9℃ (49℉)
- Average high temperature: 14℃ (57℉)
- Average low temperature: 5℃ (40℉)
- Average humidity: 77%
- Average sunny days: 14 days
- Average rainfall: 33mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Luxembourg in May
- Average temperature: 12℃ (54℉)
- Average high temperature: 17℃ (62℉)
- Average low temperature: 7℃ (44℉)
- Average humidity: 82%
- Average sunny days: 11 days
- Average rainfall: 53mm (2") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in May, make sure you pack a warm jacket or coat.
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Luxembourg in June
- Average temperature: 16℃ (60℉)
- Average high temperature: 20℃ (68℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 83%
- Average sunny days: 11 days
- Average rainfall: 51mm (2") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in June, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Luxembourg in July
- Average temperature: 18℃ (64℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 12℃ (54℉)
- Average humidity: 78%
- Average sunny days: 11 days
- Average rainfall: 45mm (2") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in July, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Luxembourg in August
- Average temperature: 17℃ (63℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 12℃ (54℉)
- Average humidity: 77%
- Average sunny days: 13 days
- Average rainfall: 42mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in August, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Luxembourg in September
- Average temperature: 13℃ (56℉)
- Average high temperature: 18℃ (65℉)
- Average low temperature: 9℃ (48℉)
- Average humidity: 80%
- Average sunny days: 16 days
- Average rainfall: 35mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in September, make sure you pack a warm jacket or coat.
Luxembourg in October
- Average temperature: 10℃ (49℉)
- Average high temperature: 13℃ (56℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 86%
- Average sunny days: 15 days
- Average rainfall: 39mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in October, make sure you pack a warm jacket or coat.
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Luxembourg in November
- Average temperature: 5℃ (41℉)
- Average high temperature: 8℃ (46℉)
- Average low temperature: 3℃ (37℉)
- Average humidity: 90%
- Average sunny days: 12 days
- Average rainfall: 44mm (2") over 14 days
- Average snow days: 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Luxembourg in December
- Average temperature: 2℃ (36℉)
- Average high temperature: 5℃ (40℉)
- Average low temperature: 0℃ (33℉)
- Average humidity: 91%
- Average sunny days: 11 days
- Average rainfall: 61mm (2") over 15 days
- Average snow days: 6 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Luxembourg in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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