May weather forecast
Luxembourg City, Luxembourg

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A scenic morning panorama of the rocky city of Luxembourg, in Luxembourg
A scenic morning panorama of the rocky city of Luxembourg, in Luxembourg

Weather in May

The arrival of May brings sunnier days and warmer temperatures, inviting a myriad of outdoor events in Luxembourg City. On average, the city records rainfall of 79mm (3.11"), making it the image of classic spring showers. The parks dance with shades of green, highlighted by colorful blossoms, as locals and visitors flock to embrace the blossoming landscapes. The daylight hours extend significantly, gracing the city with ample time for sightseeing and exploring. The air buzzes with the sounds of chirping birds, heartbeat of the city, marking the full swing of spring.

Temperature

Luxembourg City in May observes a minor temperature shift, with average high-temperatures adjusting from a mild 13.3°C (55.9°F) in April to a still refreshing 17.8°C (64°F). During the nights in May, Luxembourg City experiences a consistent average temperature of 8.4°C (47.1°F).

Humidity

The average relative humidity in May in Luxembourg City is 69%.

Rainfall

In May, the rain falls for 16 days. Throughout May, 79mm (3.11") of precipitation is accumulated. In Luxembourg City, Luxembourg, during the entire year, the rain falls for 182.3 days and collects up to 897mm (35.31") of precipitation.

Daylight

In May, the average length of the day is 15h and 23min.
On the first day of the month, sunrise is at 06:11 and sunset at 20:53. On the last day of May, sunrise is at 05:33 and sunset at 21:33 CEST.

Sunshine

In May, the average sunshine is 6.9h.

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Fend off overexposure. Sun protection is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

What are the temperatures in Luxembourg City in May?

The average high-temperature, in May, in Luxembourg City, is 17.8°C (64°F), while the average low-temperature is 8.4°C (47.1°F).

What is the average humidity in May in Luxembourg City?

The average relative humidity in May in Luxembourg City is 69%.

How many days does it rain in May in Luxembourg City?

In May, in Luxembourg City, the rain falls for 16 days. Throughout May, 79mm (3.11") of precipitation is accumulated.

What is the average length of the day in May in Luxembourg City?

In Luxembourg City, Luxembourg, the average day length in May is 15h and 23min.

When are sunrise and sunset in May in Luxembourg City?

In May, on the first day of the month, sunrise is at 06:11 and sunset at 20:53. On the last day of the month, in Luxembourg City, sunrise is at 05:33 and sunset at 21:33 CEST.

How many hours of sunshine does Luxembourg City have in May?

The average sunshine duration in May in Luxembourg City, Luxembourg, is 6.9h.

How high is the UV index in May in Luxembourg City?

In Luxembourg City, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in May
Luxembourg City, Luxembourg

Average temperature in May - Luxembourg City, Luxembourg
  • Average high temperature in May: 17.8°C

The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (3.1°C).

  • Average low temperature in May: 8.4°C

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-1.6°C).

Average humidity in May
Luxembourg City, Luxembourg

Average humidity in May - Luxembourg City, Luxembourg
  • Average humidity in May: 69%

The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is July (67%).

Average rainfall in May
Luxembourg City, Luxembourg

Average rainfall in May - Luxembourg City, Luxembourg
  • Average rainfall in May: 78.5mm

The wettest month (with the highest rainfall) is October (86.8mm).
The driest month (with the least rainfall) is April (58.2mm).

Average rainfall days in May
Luxembourg City, Luxembourg

Average rainfall days in May - Luxembourg City, Luxembourg
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is January (18.3 days).
The month with the least rainy days is July (12.5 days).

Average daylight in May /
Average sunshine in May
Luxembourg City, Luxembourg

Average daylight in May / Average sunshine in May - Luxembourg City, Luxembourg
  • Average daylight in May: 15h and 2min

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 May: 6h and 5min

The month with the most sunshine is July (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).

Average UV index in May
Luxembourg City, Luxembourg

Average UV index in May - Luxembourg City, Luxembourg
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).

Luxembourg City, Luxembourg

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