Luxembourg City, Luxembourg Climate & Monthly Averages
The climate of Luxembourg City
Weather in Luxembourg City is shaped by its oceanic climate - expect mild temperatures year-round with regular rainfall. July afternoons typically reach 74°F (23°C), while January highs hover near 40°F (4°C). Annual precipitation averages 34.4 inches (874 mm) over about 145 rainy days.
Climate quick facts
- Hottest month: July - highs near 74°F (23°C)
- Coldest month: January - highs near 40°F (4°C)
- Record high: 100°F (38°C) · Record low: 10°F (-12°C) (2015–2024)
- Wettest month: January (14 rainy days) · Sunniest: July (11.9 h sun/day)
- Climate type: oceanic - mild temperatures year-round with regular rainfall
- Snow: about 10 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 74°F (23°C) and overnight lows stay near 56°F (14°C). The coolest month is January, with typical highs of 40°F (4°C) and lows around 31°F (0°C). Based on 2015–2024 weather data, temperatures have reached as high as 100°F (38°C) and dropped as low as 10°F (-12°C).
Rain, sun and snow
January is usually the wettest month. It brings about 3.5 inches (88 mm) of rain over 14 days, while April is the driest. July brings the most sunshine, averaging 11.9 hours of sun a day. Snow falls on about 10 days in a typical year, mostly from November through March.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 40° | 31° | 14 | 3.5 in | 3.1 h/day | 88% |
| February | 44° | 32° | 12 | 2.7 in | 5.2 h/day | 83% |
| March | 49° | 35° | 13 | 2.8 in | 7.2 h/day | 78% |
| April | 56° | 38° | 11 | 2.1 in | 9.8 h/day | 72% |
| May | 63° | 46° | 12 | 3.0 in | 11.0 h/day | 72% |
| June | 72° | 54° | 12 | 2.8 in | 11.5 h/day | 70% |
| July | 74° | 56° | 10 | 2.5 in | 11.9 h/day | 67% |
| August | 74° | 57° | 11 | 2.5 in | 10.8 h/day | 71% |
| September | 67° | 50° | 11 | 2.8 in | 9.3 h/day | 76% |
| October | 58° | 45° | 12 | 3.2 in | 5.9 h/day | 85% |
| November | 47° | 38° | 14 | 3.3 in | 3.7 h/day | 89% |
| December | 42° | 35° | 14 | 3.2 in | 2.7 h/day | 91% |
Luxembourg City month by month
Luxembourg City weather in January
January brings highs around 40°F (4°C), lows near 31°F (0°C), about 14 wet days and roughly 4 snowy days - typically the coldest month and the wettest month of the year in Luxembourg City.
Luxembourg City weather in February
February brings highs around 44°F (7°C), lows near 32°F (0°C), about 12 wet days and roughly 2 snowy days.
Luxembourg City weather in March
March brings highs around 49°F (10°C), lows near 35°F (2°C), about 13 wet days.
Luxembourg City weather in April
April brings highs around 56°F (13°C), lows near 38°F (4°C), about 11 wet days - typically the driest month of the year in Luxembourg City.
Luxembourg City weather in May
May brings highs around 63°F (17°C), lows near 46°F (8°C), about 12 wet days.
Luxembourg City weather in June
June brings highs around 72°F (22°C), lows near 54°F (12°C), about 12 wet days.
Luxembourg City weather in July
July brings highs around 74°F (23°C), lows near 56°F (14°C), about 10 wet days - typically the hottest month and the sunniest month of the year in Luxembourg City.
Luxembourg City weather in August
August brings highs around 74°F (24°C), lows near 57°F (14°C), about 11 wet days.
Luxembourg City weather in September
September brings highs around 67°F (19°C), lows near 50°F (10°C), about 11 wet days.
Luxembourg City weather in October
October brings highs around 58°F (14°C), lows near 45°F (7°C), about 12 wet days.
Luxembourg City weather in November
November brings highs around 47°F (8°C), lows near 38°F (3°C), about 14 wet days and roughly 1 snowy days.
Luxembourg City weather in December
December brings highs around 42°F (6°C), lows near 35°F (1°C), about 14 wet days and roughly 2 snowy days.
Seasons in Luxembourg City
Spring (March through May)
Spring in Luxembourg City is crisp but comfortable, with daytime highs averaging 56°F (13°C) and nights around 40°F (4°C); expect showers on roughly 36 days across the season.
Summer (June through August)
Summer in Luxembourg City is pleasantly warm, with daytime highs averaging 73°F (23°C) and nights around 56°F (13°C); expect showers on roughly 34 days across the season.
Fall (September through November)
Fall in Luxembourg City stays on the cool side of mild, with daytime highs averaging 57°F (14°C) and nights around 44°F (7°C); expect showers on roughly 36 days across the season.
Winter (December through February)
Winter in Luxembourg City is brisk and cold, with daytime highs averaging 42°F (6°C) and nights around 33°F (0°C); expect showers on roughly 40 days across the season, plus around 8 snowy days.
Climate questions, answered
What is the average temperature in Luxembourg City?
Is Luxembourg City hot in summer?
Is Luxembourg City cold in winter?
How many rainy days does Luxembourg City get in a year?
Best time to visit Luxembourg City
The best time to visit Luxembourg City is generally July to October and April, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 66°F (19°C).
Pack for Luxembourg City with a heavy insulated coat, hat and gloves for winter; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - July nights average 56°F (14°C).
Luxembourg City temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.