December weather forecast
Hernals, Austria

December

Weather in December

The first month of the winter, December, is also a wintry month in Hernals, Austria, with temperature in the range of an average high of 3.9°C (39°F) and an average low of -0.8°C (30.6°F).

Temperature

December involves a decrease in temperature, down from a frosty 8.9°C (48°F) in November to an icy 3.9°C (39°F). With a barely noticeable fluctuation in temperature, Hernals reaches an average low of -0.8°C (30.6°F) during the December nights.

Humidity

In Hernals, the average relative humidity in December is 82%.

Rainfall

In December, in Hernals, the rain falls for 9.2 days. Throughout December, 29mm (1.14") of precipitation is accumulated. In Hernals, during the entire year, the rain falls for 134.8 days and collects up to 389mm (15.31") of precipitation.

Snowfall

January through April, October through December are months with snowfall in Hernals, Austria. In Hernals, in December, during 4.5 snowfall days, 40mm (1.57") of snow is typically accumulated. In Hernals, during the entire year, snow falls for 21.8 days and aggregates up to 196mm (7.72") of snow.

Daylight

The month with the shortest days in Hernals is December, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 07:24 and sunset at 16:03. On the last day of December, sunrise is at 07:45 and sunset at 16:10 CET.

Sunshine

In Hernals, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index in Hernals, Austria, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the UV index of 2 transforms into the following advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

How cold is December in Hernals?
In Hernals, 3.9°C (39°F) is the average high-temperature and -0.8°C (30.6°F) is the average low-temperature during December.
What is the average humidity in December in Hernals?
The average relative humidity in December in Hernals is 82%.
How many days does it rain in December in Hernals?
In Hernals, Austria, in December, during 9.2 rainfall days, 29mm (1.14") of precipitation is typically accumulated.
How much does it snow in Hernals in December?
In December, in Hernals, Austria, it is snowing for 4.5 days. Throughout December, 40mm (1.57") of snow is accumulated.
What is the month with the shortest days in Hernals?
The month with the shortest days in Hernals is December, with an average of 8h and 24min of daylight.
What is the average length of the day in December in Hernals?
In December, the average day length in Hernals is 8h and 25min.
When are sunrise and sunset in December in Hernals?
In December, on the first day of the month, sunrise is at 07:24 and sunset at 16:03. On the last day of the month, in Hernals, Austria, sunrise is at 07:45 and sunset at 16:10 CET.
How many hours of sunshine does Hernals have in December?
The average sunshine duration in December is 4.9h.
What is the month with the lowest UV index in Hernals?
The months with the lowest UV index in Hernals, Austria, are January, February, November and December, with an average maximum UV index of 2.
How high is the UV index in December in Hernals?
In December, the average daily maximum UV index in Hernals, Austria, 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 December - Hernals, Austria
Average temperature in December
Hernals, Austria
  • Average high temperature in December: 3.9°C

The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (2°C).

  • Average low temperature in December: -0.8°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).

Average pressure in December - Hernals, Austria
Average pressure in December
Hernals, Austria
  • Average pressure in December: 1020.2mbar

The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is June (1015.2mbar).

Average wind speed in December - Hernals, Austria
Average wind speed in December
Hernals, Austria
  • Average wind speed in December: 12.8km/h

The windiest month (with the highest average wind speed) is February (14.4km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

Average humidity in December - Hernals, Austria
Average humidity in December
Hernals, Austria
  • Average humidity in December: 82%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (62%).

Average rainfall in December - Hernals, Austria
Average rainfall in December
Hernals, Austria
  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is June (57mm).
The driest month (with the least rainfall) is April (20mm).

Average rainfall days in December - Hernals, Austria
Average rainfall days in December
Hernals, Austria
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8 days).

Average snowfall in December - Hernals, Austria
Average snowfall in December
Hernals, Austria
  • Average snowfall in December: 40mm

The month with the highest snowfall is January (69mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December - Hernals, Austria
Average snowfall days in December
Hernals, Austria
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Hernals, Austria
Average daylight in December /
Average sunshine in December
Hernals, Austria
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in December - Hernals, Austria
Average sunshine days in December
Hernals, Austria
  • Average sunshine days in December: 18 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December - Hernals, Austria
Average UV index in December
Hernals, Austria
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December - Hernals, Austria
Average cloud cover in December
Hernals, Austria
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December - Hernals, Austria
Average visibility in December
Hernals, Austria
  • Average visibility in December: 9km

The months with the highest visibility are April, June, July, August and September (10km).
The month with the lowest visibility is January (8km).

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