Ljubljana
Slovenia
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Ljubljana, Slovenia

 A scenic panorama of the capital of Slovenia, Ljubljana, with a small river flowing through the city, and a distant view of the mountains
A scenic panorama of the capital of Slovenia, Ljubljana, with a small river flowing through the city, and a distant view of the mountains
December, the first month of the winter, in Ljubljana, is also a wintry month, with average temperature varying between 3.8°C (38.8°F) and -1.1°C (30°F).

Temperature

In December, the average high-temperature decreases, from a frosty 8.8°C (47.8°F) in November, to a wintry 3.8°C (38.8°F). In Ljubljana, the average low-temperature is -1.1°C (30°F).

Rainfall

In December, in Ljubljana, the rain falls for 14 days. Throughout December, 107mm (4.2") of precipitation is accumulated. In Ljubljana, during the entire year, the rain falls for 151 days and collects up to 1361mm (53.6") of precipitation.

Daylight

December has the shortest days of the year, with an average of 8.7h of daylight.

Sunshine

December has the least sunshine of the year in Ljubljana, with an average of 1.8h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 1 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in December in Ljubljana?

The average high-temperature, in December, in Ljubljana, Slovenia, is 3.8°C (38.8°F), while the average low-temperature is -1.1°C (30°F).

How much does it rain in Ljubljana in December?

In Ljubljana, Slovenia, during December, the rain falls for 14 days and regularly aggregates up to 107mm (4.2") of precipitation.

What is the month with the shortest days in Ljubljana?

December has the shortest days of the year, with an average of 8.7h of daylight.

What is the average length of the day in December in Ljubljana?

In Ljubljana, Slovenia, the average length of the day in December is 8.7h.

What is the month with the least sunshine in Ljubljana?

The month with the least sunshine in Ljubljana is December, with an average of 1.8h of sunshine.

How long on average sun shines in December in Ljubljana?

In December, the average sunshine is 1.8h.

When is the lowest UV index in Ljubljana?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Ljubljana.

How high is the UV index in December in Ljubljana?

The average daily maximum UV index in December in Ljubljana, Slovenia, is 1. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV rays.
Average temperature in December - Ljubljana, Slovenia
  • Average high temperature in December: 3.8°C

The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is January (3.4°C).

  • Average low temperature in December: -1.1°C

The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).

Average rainfall in December - Ljubljana, Slovenia
  • Average rainfall in December: 107mm

Wettest months (with the highest rainfall) are September and October (147mm).
The driest month (with the lowest rainfall) is January (69mm).

Average rainfall days in December - Ljubljana, Slovenia
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is June (15 days).
The month with the lowest number of rainy days is February (9 days).

Average daylight in December / Average sunshine in December - Ljubljana, Slovenia
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).

  • Average sunshine in December: 1.8h

The month with most sunshine is July (Average sunshine: 9.5h).
The month with least sunshine is December (Average sunshine: 1.8h).

Average UV index in December - Ljubljana, Slovenia
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).