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January Weather in Mersch, Luxembourg

Last updated: August 23, 2025

In Mersch, Luxembourg, the average temperature in January hovers around 2°C (36°F). During this month, temperatures can dip as low as -11°C (12°F) and rise to a maximum of 12°C (53°F). Expect precipitation of about 72 mm (2.8 in) over approximately 11 days, contributing to the high humidity level of 91%.

January Temperature in Mersch

In January in Mersch, the average temperature is 2°C (36°F). The maximum can reach 12°C (53°F), while the minimum can plummet to as low as -11°C (12°F). Be sure to pack warm clothing to stay comfortable while exploring.

January Weather in Mersch: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mersch, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mersch, January typically has an average temperature of 2°C (36°F), with highs reaching up to 12°C (53°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec353842485563656558514238
Data source: Temperature data for Mersch 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.

January Precipitation in Mersch

In Mersch in January, the precipitation amount is 72 mm (2.8 in) over the course of 11 days.

January Precipitation Trends in Mersch

The chart displays monthly precipitation patterns in Mersch, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Mersch, January typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7276834174777366648069122
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mersch

In Mersch in January humidity is 91%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making every step outside a reminder of the cold, crisp air that sharpens your senses but can also dampen your spirits as you navigate the wet conditions.

January Average Humidity in Mersch

This chart illustrates the average monthly humidity levels in Mersch, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Mersch is approximately 91%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Mersch

In Mersch in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Mersch, you can visit Hourly UV Index in Mersch.

Maximum UV Index Levels in Mersch for January

The chart shows the monthly maximum UV Index (UVI) for Mersch in January, 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 January, the maximum UV index in Mersch typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Mersch January 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 January Weather in Mersch Compares to Other Months

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

This table compares monthly weather conditions in Mersch, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)72 mm (2.8 inches)91%low
February Weather3°C (38°F)75 mm (3.0 inches)90%moderate
March Weather6°C (43°F)83 mm (3.2 inches)88%moderate
April Weather9°C (49°F)41 mm (1.6 inches)84%high
May Weather13°C (55°F)74 mm (2.9 inches)81%very high
June Weather17°C (64°F)77 mm (3.0 inches)82%very high
July Weather18°C (65°F)73 mm (2.9 inches)82%very high
August Weather18°C (65°F)66 mm (2.6 inches)80%very high
September Weather14°C (58°F)64 mm (2.5 inches)83%high
October Weather10°C (51°F)80 mm (3.2 inches)89%moderate
November Weather5°C (42°F)69 mm (2.7 inches)91%low
December Weather4°C (39°F)122 mm (4.8 inches)93%low

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