May weather forecastErmsdorf, Luxembourg

May

Weather in May

May brings about a significant change in the Ermsdorf weather. The city experiences progressively warmer days and lower snowfall levels, leading to more rain. This upturn in rainfall, reaching 53mm (2.09"), may require the carrying of an umbrella for sudden showers. Protracted daylight hours paint longer shadows late into the day. Despite the unpredictable rain, the city often glows under the pleasant May sun.

Temperature

May's onset in Ermsdorf records a minor alteration in the average high-temperature to a comfortable 16.7°C (62.1°F) from April's 14.1°C (57.4°F). An average low-temperature of 6.7°C (44.1°F) is anticipated throughout the nights in Ermsdorf during May.

Humidity

In May, the average relative humidity is 82%.

Rainfall

In Ermsdorf, Luxembourg, during May, the rain falls for 18 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 171.5 rainfall days, and 545mm (21.46") of precipitation is accumulated.

Snowfall

Months with snowfall in Ermsdorf, Luxembourg, are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Ermsdorf aggregates 1mm (0.04") of snow. In Ermsdorf, Luxembourg, during the entire year, snow falls for 28 days and aggregates up to 235mm (9.25") of snow.

Daylight

In Ermsdorf, Luxembourg, the average length of the day in May is 15h and 25min.
On the first day of May in Ermsdorf, sunrise is at 06:10 and sunset at 20:53. On the last day of the month, sunrise is at 05:31 and sunset at 21:33 CEST.

Sunshine

The average sunshine in May in Ermsdorf is 8.7h.

UV index

In Ermsdorf, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 4 during May translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

The average high-temperature and low-temperature in Ermsdorf during May are 16.7°C (62.1°F) and 6.7°C (44.1°F) respectively.

The average relative humidity in May in Ermsdorf, Luxembourg, is 82%.

In Ermsdorf, Luxembourg, in May, during 18 rainfall days, 53mm (2.09") of precipitation is typically accumulated.

May is the last month it regularly snows. During 0.1 snowfall days, in May, Ermsdorf aggregates 1mm (0.04") of snow.

The average day length in May is 15h and 25min.

On the first day of May in Ermsdorf, Luxembourg, sunrise is at 06:10 and sunset at 20:53. On the last day of the month, sunrise is at 05:31 and sunset at 21:33 CEST.

In May, the average sunshine duration in Ermsdorf is 8.7h.

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Ermsdorf, Luxembourg

  • Average high temperature in May: 16.7°C

The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (3.2°C).

  • Average low temperature in May: 6.7°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).

Average pressure in May
Ermsdorf, Luxembourg

  • Average pressure in May: 1016.1mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).

Average wind speed in May
Ermsdorf, Luxembourg

  • Average wind speed in May: 11km/h

The windiest month (with the highest average wind speed) is February (15.2km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).

Average humidity in May
Ermsdorf, Luxembourg

  • Average humidity in May: 82%

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

Average rainfall in May
Ermsdorf, Luxembourg

  • Average rainfall in May: 53mm

The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (33mm).

Average rainfall days in May
Ermsdorf, Luxembourg

  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (10.8 days).

Average snowfall in May
Ermsdorf, Luxembourg

  • Average snowfall in May: 1mm

The month with the highest snowfall is December (71mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Ermsdorf, Luxembourg

  • Average snowfall days in May: 0.1 days

The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in May: 15h and 24min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in May: 8h and 42min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).

Average sunshine days in May
Ermsdorf, Luxembourg

  • Average sunshine days in May: 10.5 days

The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in May
Ermsdorf, Luxembourg

  • Average UV index in May: 4

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).

Average cloud cover in May
Ermsdorf, Luxembourg

  • Average cloud cover in May: 45

The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in May
Ermsdorf, Luxembourg

  • Average visibility in May: 8km

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).