January weather forecast
Altwies, Luxembourg

January

Weather in January

January, the same as December, is an icy winter month in Altwies, Luxembourg, with an average temperature varying between -0.9°C (30.4°F) and 3.4°C (38.1°F).

Temperature

The lowest temperatures are recorded in January, with averages reaching a high of 3.4°C (38.1°F) and a low of -0.9°C (30.4°F).

Humidity

The average relative humidity in January is 90%.

Rainfall

In January, in Altwies, the rain falls for 14.7 days. Throughout January, 54mm (2.13") of precipitation is accumulated. Throughout the year, in Altwies, there are 187.2 rainfall days, and 636mm (25.04") of precipitation is accumulated.

Snowfall

Months with snowfall in Altwies are January through May, October through December. The month with the most snowfall in Altwies is January, when snow falls for 9.2 days and typically aggregates up to 85mm (3.35") of snow.

Daylight

In January, the average length of the day in Altwies, Luxembourg, is 8h and 43min.
On the first day of January, sunrise is at 08:31 and sunset at 16:45. On the last day of the month, sunrise is at 08:08 and sunset at 17:27 CET.

Sunshine

In Altwies, the average sunshine in January is 3.3h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Altwies. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

What is the coldest time of year in Altwies?
January is the coldest month, exhibiting average temperatures of 3.4°C (38.1°F) at the peak and -0.9°C (30.4°F) at the base.
Is it cold in Altwies during January?
Altwies in January has an average high-temperature of 3.4°C (38.1°F) and an average low-temperature of -0.9°C (30.4°F).
What is the average humidity in January in Altwies?
In Altwies, Luxembourg, the average relative humidity in January is 90%.
How many days does it rain in January in Altwies?
In Altwies, Luxembourg, during January, the rain falls for 14.7 days and regularly aggregates up to 54mm (2.13") of precipitation.
What is the snowiest month in Altwies?
The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 85mm (3.35") of snow.
How much does it snow in Altwies in January?
In January, it is snowing for 9.2 days. Throughout January, 85mm (3.35") of snow is accumulated.
How many hours of daylight does Altwies have in January?
In January, the average day length in Altwies, Luxembourg, is 8h and 43min.
When is the sunrise / sunset in January in Altwies?
In January, on the first day of the month, sunrise is at 08:31 and sunset at 16:45. On the last day of the month, sunrise is at 08:08 and sunset at 17:27 CET.
How many hours of sunshine does Altwies have in January?
The average sunshine duration in January in Altwies, Luxembourg, is 3.3h.
What are the months with the lowest UV index in Altwies?
The months with the lowest UV index in Altwies are January, February, November and December, with an average maximum UV index of 2.
How high is the UV index in January in Altwies?
The average daily maximum UV index in January in Altwies is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Altwies, Luxembourg
  • Average high temperature in January: 3.4°C

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (3.4°C).

  • Average low temperature in January: -0.9°C

The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).

Average pressure in January
Altwies, Luxembourg
  • Average pressure in January: 1017.7mbar

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).

Average wind speed in January
Altwies, Luxembourg
  • Average wind speed in January: 14.7km/h

The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

Average humidity in January
Altwies, Luxembourg
  • Average humidity in January: 90%

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

Average rainfall in January
Altwies, Luxembourg
  • Average rainfall in January: 54mm

The wettest month (with the highest rainfall) is December (75mm).
The driest month (with the least rainfall) is April (39mm).

Average rainfall days in January
Altwies, Luxembourg
  • Average rainfall days in January: 14.7 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (12.5 days).

Average snowfall in January
Altwies, Luxembourg
  • Average snowfall in January: 85mm

The month with the highest snowfall is January (85mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in January
Altwies, Luxembourg
  • Average snowfall days in January: 9.2 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Altwies, Luxembourg
  • Average daylight in January: 8h and 4min

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 January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).

Average sunshine days in January
Altwies, Luxembourg
  • Average sunshine days in January: 10.3 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8 days).

Average UV index in January
Altwies, Luxembourg
  • Average UV index in January: 2

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 January
Altwies, Luxembourg
  • Average cloud cover in January: 67

The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in January
Altwies, Luxembourg
  • Average visibility in January: 8km

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are November and December (7km).

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