Slovenia weather in December 2025
Slovenia weather in December 2025
Day
8 °C
Night
3 °C
Sea
13 °C
Precipitation
99 mm
in month
Rainy days
9 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
71 %
Day
8 °C
Night
3 °C
Sea
13 °C
Precipitation
99 mm
in month
Rainy days
9 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
71 %
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Weather overview
In Slovenia in December, the average air temperature ranges from 8 °C (46 °F) during the day to 3 °C (38 °F) at night. There are 9 days of rain on average, where the rainfall is 99 mm (3.90 in).
Are there good conditions to visit in December in Slovenia?
In December there are not good conditions to visit Slovenia. Since Slovenia is a region with winter sports possibilities, then December can be suitable to visit for this purpose. A relatively low temperature of 8 °C (46 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 3 °C (38 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
What is the temperature in Slovenia during the day in December?
In December in Slovenia, the average daily temperatures will be 8 °C (46 °F). Be sure to pack warm clothes, including a jacket and a warm sweater. On some days it may occasionally freeze, but with stronger winds, the feeling of cold may increase.
What is the rainfall intensity in December in Slovenia?
There is precipitation of 99 mm (3.90 in) in December in Slovenia, which means 3 mm (0.13 in) rainfall per day on average.
How many rainy days can I expect in December in Slovenia?
In Slovenia in December, we can expect 9 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.0 days of the week, or in general - 29 % days.
What is the night temperature in Slovenia in December?
The average night temperature in Slovenia in December is 3 °C (38 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
Is it freezing in December in Slovenia?
It is not very likely that you will experience freezing in December in Slovenia, daily temperatures will rise to 3 °C (38 °F).
How long is the day (from dawn till dusk) in Slovenia in December?
The length of daylight in Slovenia in December is 9 hours.
Is there a wet season in Slovenia in December?
No, there is no wet season in December in Slovenia - you can expect 9 days of rain during the month.
Is December part of the dry season in Slovenia?
No, December is not a dry month in Slovenia, expect rain approximately 9 days in a month.
Is the temperature rising or falling in the course of time in Slovenia in December?
During December in Slovenia, the day temperatures are decreasing - from 10 °C (50 °F) at the beginning of the month to 7 °C (45 °F) at the end of the month.
How does the sea temperature evolve during the month in December in Slovenia?
Slovenia has a decreasing trend of the sea temperature during December - from 14 °C (58 °F) in the first days of the month to 12 °C (53 °F) in the last days of the month.
Is Slovenia rainier in December than in November?
No, in Slovenia in December it does not rain more than in November.
How windy is it in Slovenia in December?
An average wind scale that can be expected in Slovenia in December is 2. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.
What is the humidity in December in Slovenia?
Humidity in Slovenia in December is 71 %.
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