Weather in December
December sees the ushering in of a true Balkan winter in Postojna, dipping temperatures to 4°C (39.2°F), down from November's relatively warmer 7°C (44.6°F). The considerably shorter daylight hours, lowest in the year, point to the onset of the winter solstice. Amidst the cold, rainfall continues to be part of the December weather narrative yet decreases from the November peak, setting the stage for January's conditions. Covering the city with a layer of frost, December's weather paints a canvas of winter wonder paving the way for a similar winter narrative in the New Year.
On the first day of the month, sunrise is at 07:24 and sunset at 16:20. On the last day of December, in Postojna, Slovenia, sunrise is at 07:44 and sunset at 16:28 CET.
[Resources]Temperature
The average high-temperature shows a slight dip in December, from November's frosty 7°C (44.6°F) to an icy 4°C (39.2°F). December brings Postojna a consistent average low-temperature of -2°C (28.4°F).Rainfall
Throughout December, in Postojna, 130mm (5.12") of precipitation is accumulated. During the entire year, Postojna aggregates up to 1838mm (72.36") of precipitation.Daylight
December has the shortest days of the year in Postojna, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 07:24 and sunset at 16:20. On the last day of December, in Postojna, Slovenia, sunrise is at 07:44 and sunset at 16:28 CET.
Frequently asked questions
How cold is December in Postojna?
During December, Postojna experiences an average high-temperature of 4°C (39.2°F) and a low-temperature of -2°C (28.4°F).
How much does it rain in Postojna in December?
During December, Postojna regularly aggregates up to 130mm (5.12") of precipitation.
What is the month with the shortest days in Postojna?
December has the shortest days of the year in Postojna, Slovenia, with an average of 8h and 42min of daylight.
What is the average length of the day in December in Postojna?
The average day length in December is 8h and 45min.
When is the sunrise / sunset in December in Postojna?
On the first day of December in Postojna, sunrise is at 07:24 and sunset at 16:20. On the last day of the month, sunrise is at 07:44 and sunset at 16:28 CET.
Average temperature in December
Postojna, Slovenia
- Average high temperature in December: 4°C
The warmest months (with the highest average high temperature) are July and August (24°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in December: -2°C
The months with the highest average low temperature are July and August (11°C).
The coldest month (with the lowest average low temperature) is January (-5°C).
Average rainfall in December
Postojna, Slovenia
- Average rainfall in December: 130mm
The wettest months (with the highest rainfall) are October and November (208mm).
The driest month (with the least rainfall) is February (86mm).
Average daylight in December
Postojna, Slovenia
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
Postojna, Slovenia
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