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April Weather in Wiltz, Luxembourg

Last updated: August 23, 2025

In April, the average temperature in Wiltz, Luxembourg hovers around 9°C (48°F). Be prepared for a range of weather, with minimums dipping to -4°C (25°F) and maximums soaring up to 25°C (78°F). This month also sees about 44 mm (1.7 in) of precipitation spread across 10 days, contributing to an average humidity of 84%.

April Temperature in Wiltz

In April in Wiltz, the average temperature is 9°C (48°F). Maximums can reach 25°C (78°F), while minimums can drop to as low as -4°C (25°F). This variation makes it essential for travelers to pack layers to stay comfortable throughout the day.

April Weather in Wiltz: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Wiltz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wiltz, April typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (78°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec343741475462646457504138
Data source: Temperature data for Wiltz generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Wiltz

In Wiltz in April, the total precipitation amount is 44 mm (1.7 in) over the course of 10 days.

April Precipitation Trends in Wiltz

The chart displays monthly precipitation patterns in Wiltz, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Wiltz, April typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8077914481867977708368123
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Wiltz

In Wiltz in April, humidity is 84%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that envelops you, making it essential to dress in layers and stay active, as the moisture in the air can quickly lead to discomfort while traveling.

April Average Humidity in Wiltz

This chart illustrates the average monthly humidity levels in Wiltz, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Wiltz is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Wiltz

In Wiltz in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Wiltz, you can refer to this Hourly UV Index in Wiltz.

Maximum UV Index Levels in Wiltz for April

The chart shows the monthly maximum UV Index (UVI) for Wiltz in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Wiltz typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Wiltz April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Wiltz Compares to Other Months

Weather in Wiltz varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Wiltz, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Wiltz, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)80 mm (3.1 inches)91%low
February Weather3°C (38°F)77 mm (3.0 inches)90%moderate
March Weather5°C (42°F)91 mm (3.6 inches)88%moderate
April Weather9°C (48°F)44 mm (1.7 inches)84%high
May Weather12°C (54°F)81 mm (3.2 inches)81%very high
June Weather17°C (63°F)86 mm (3.4 inches)82%very high
July Weather18°C (64°F)79 mm (3.1 inches)82%very high
August Weather18°C (64°F)77 mm (3.0 inches)80%very high
September Weather14°C (57°F)70 mm (2.7 inches)83%high
October Weather10°C (50°F)83 mm (3.3 inches)89%moderate
November Weather5°C (41°F)68 mm (2.7 inches)91%low
December Weather3°C (38°F)123 mm (4.9 inches)93%low

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