December weather forecast
Graz, Austria

December

Weather in December

December in Graz is characterized by the festive spirit, despite the cold temperatures ranging from -5°C at night to 2°C during the day. The city is bathed in the soft glow of Christmas lights, transforming it into a winter fairyland. December offers visitors a chance to experience the world-renowned Austrian Christmas markets, known for their unique crafts, delicious foods, and warming mulled wine. Despite the winter's chill, December is a magical experience that truly warms up the heart.

Temperature

The onset of December brings a small change in high-temperatures, falling from a chilly 7°C in November to a cold 2°C. A subtle decrease in the average high-temperature marks December, falling from November's chilly 7°C to a cold 2°C. An average low-temperature of -5°C is expected during December.

Rainfall

In Graz, in December, it is raining for 11 days, with typically 51mm of accumulated precipitation. Throughout the year, there are 146 rainfall days, and 968mm of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 07:21 and sunset at 16:12. On the last day of December, sunrise is at 07:42 and sunset at 16:20 CET.

Sunshine

The months with the least sunshine are January and December, with an average of 2h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Graz, Austria. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

How cold is it in December?
In Graz, in December, the average high-temperature is 2°C, and the average low-temperature is -5°C.
How many days does it rain in December in Graz?
In Graz, in December, it is raining for 11 days, with typically 51mm of accumulated precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 36min of daylight.
How many hours of daylight does Graz have in December?
The average day length in December is 8h and 35min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 07:21 and sunset at 16:12. On the last day of the month, sunrise is at 07:42 and sunset at 16:20 CET.
What is the month with the least sunshine?
The months with the least sunshine are January and December, with an average of 2h of sunshine.
How long on average sun shines in December?
In December, the average sunshine duration is 2h.
When is the lowest UV index in Graz?
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
What is the UV index reading in December?
In Graz, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average UV index
Average temperature in December
Graz, Austria
  • Average high temperature in December: 2°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (0°C).

  • Average low temperature in December: -5°C

The months with the highest average low temperature are July and August (12°C).
The coldest month (with the lowest average low temperature) is January (-7°C).

Average rainfall in December
Graz, Austria
  • Average rainfall in December: 51mm

The wettest month (with the highest rainfall) is July (131mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in December
Graz, Austria
  • Average rainfall days in December: 11 days

The months with the highest number of rainy days are May and June (15 days).
The month with the least rainy days is October (9 days).

Average daylight in December /
Average sunshine in December
Graz, Austria
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 2h

The month with the most sunshine is July (Average sunshine: 8h).
The months with the least sunshine are January and December (Average sunshine: 2h).

Average UV index in December
Graz, Austria
  • Average UV index in December: 1

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).

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