April weather forecastMersch, Luxembourg

April

Weather in April

April is the harbinger of spring in full swing in Mersch. A noticeable enhancement in sunlight exposure underpins the lengthening days of spring. The flora is in full bloom, interspersed with occasional showers, lending the city a fresh and vibrant look. While it rains over a period of 13.5 days, the rainy spells intersperse with hours of adequate sunshine forecasted for Mersch in this month, keeping the overall weather pleasant. April hence promises a season of rejuvenation, when the entire city basks in the glory of spring.

Temperature

The shift from March to April in Mersch sees an increase in the average high-temperature, transitioning from a frosty 9.1°C (48.4°F) to a moderate 14.1°C (57.4°F). In Mersch, an average nighttime temperature of 4.6°C (40.3°F) is expected during April.

Humidity

In Mersch, the average relative humidity in April is 77%.

Rainfall

April is the month with the least rainfall. Rain falls for 13.5 days and accumulates 33mm (1.3") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Mersch. In Mersch, in April, snow falls for 0.4 days, with typically accumulated 1mm (0.04") of snow. Throughout the year, there are 28 snowfall days, and 235mm (9.25") of snow is accumulated.

Daylight

In April, the average length of the day in Mersch is 13h and 47min.
On the first day of April, sunrise is at 07:11 and sunset at 20:07. On the last day of the month, sunrise is at 06:13 and sunset at 20:52 CEST.

Sunshine

In Mersch, the average sunshine in April is 8.3h.

UV index

The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 3 during April translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

The average high-temperature, in April, in Mersch, is 14.1°C (57.4°F), while the average low-temperature is 4.6°C (40.3°F).

In Mersch, Luxembourg, the average relative humidity in April is 77%.

April is the month with the least rainfall in Mersch, Luxembourg. Rain falls for 13.5 days and accumulates 33mm (1.3") of precipitation.

In April, in Mersch, Luxembourg, the rain falls for 13.5 days. Throughout April, 33mm (1.3") of precipitation is accumulated.

In Mersch, Luxembourg, in April, during 0.4 snowfall days, 1mm (0.04") of snow is typically accumulated.

In Mersch, the average day length in April is 13h and 47min.

In April, on the first day of the month, sunrise is at 07:11 and sunset at 20:07. On the last day of the month, sunrise is at 06:13 and sunset at 20:52 CEST.

In Mersch, the average sunshine duration in April is 8.3h.

In April, the average daily maximum UV index in Mersch is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
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 April
Mersch, Luxembourg

  • Average high temperature in April: 14.1°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 April: 4.6°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 April
Mersch, Luxembourg

  • Average pressure in April: 1015.6mbar

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 April
Mersch, Luxembourg

  • Average wind speed in April: 11.5km/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 April
Mersch, Luxembourg

  • Average humidity in April: 77%

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

Average rainfall in April
Mersch, Luxembourg

  • Average rainfall in April: 33mm

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

Average rainfall days in April
Mersch, Luxembourg

  • Average rainfall days in April: 13.5 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 April
Mersch, Luxembourg

  • Average snowfall in April: 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 April
Mersch, Luxembourg

  • Average snowfall days in April: 0.4 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 April /
Average sunshine in April
Mersch, Luxembourg

  • Average daylight in April: 13h and 48min

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 April: 8h and 18min

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 April
Mersch, Luxembourg

  • Average sunshine days in April: 13.8 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 April
Mersch, Luxembourg

  • Average UV index in April: 3

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 April
Mersch, Luxembourg

  • Average cloud cover in April: 42

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 April
Mersch, Luxembourg

  • Average visibility in April: 9km

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).