Last updated: August 27, 2025
December in Slovenia embraces winter's chill, with maximum temperatures reaching 11°C (52°F) and average temperatures plummeting to -1°C (30°F), while the minimum can dip as low as -17°C (1°F). The month is marked by high humidity levels averaging 89%, creating a crisp air that adds to the atmospheric charm of Slovenia's winter landscape. With total precipitation amounting to 88 mm (3.5 in) over approximately 10 days, residents and visitors alike can expect a combination of rain and snow, making it a picturesque time to explore the country's natural beauty and festive spirit.
In December, Slovenia transforms into a winter wonderland, with temperatures dipping to a minimum of -17°C (1°F) and averaging around -1°C (30°F). Despite the chill, the maximum temperature can reach a mild 11°C (52°F), providing a stark contrast to the colder nights. This month marks the tail end of the extreme winter temperatures that begin in January, showcasing a gradual but evident warming trend as the region transitions into winter. As the year draws to a close, December's cold invites cozy gatherings and festive celebrations, making it a magical time to experience Slovenia's stunning winter scenery.
In December, Slovenia experiences a notable shift in precipitation patterns as the year draws to a close, accumulating an average of 88 mm (3.5 in) over 10 rainy days. This marks a decrease in precipitation compared to the wetter months of May through September, which typically see up to 184 mm (7.3 in). However, December still showcases a significant winter moisture accumulation, bridging the gap between the lush autumn rains of November and the potentially drier months that follow. The consistent frequency of rain days in December hints at a persistent dampness, creating an enchanting winter landscape that captures the essence of Slovenia's seasonal charm. Overall, while precipitation in December remains substantial, it reflects a gradual transition towards the drier winter months ahead.
In December, Slovenia experiences a humidity level of 89%, marking a slight drop from the preceding months of October and November, which saw higher readings of 88% and 90%, respectively. This subtle dip aligns with a downward trend in humidity as the year progresses, reflecting the region's transition into winter. However, December's humidity remains notably high compared to the warmer months, such as August with its lowest average of 68%. As the year draws to a close, the consistent moisture in the air not only influences the climate but also contributes to Slovenia’s enchanting winter landscapes, making it a season of both comfort and charm.
In December, Slovenia experiences a low UV Index of 2, indicating that sun exposure is relatively safe with a recommended burn time of 45 minutes. This trend reflects the seasonal decline in UV radiation, as temperatures cool and daylight hours shorten. Starting from the summer months when the UV Index peaks at 9, the index steadily decreases through autumn, ultimately leading to a more gentle sun exposure in winter. This pattern highlights the importance of adapting sun safety measures according to changing UV levels throughout the year. For more detailed information, check the UV Index.
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In December, Slovenia experiences a gentle shift in daylight, with 199 hours of sunshine illuminating the winter landscape. This month serves as a bridge between the shorter days of fall and the longer hours that come with the arrival of spring. As temperatures drop, the sunshine hours begin to taper off from the peak of 414 hours in July, but the glow of December still manages to brighten the chilly atmosphere. Notably, December's sunlight slightly outshines the previous month, November, which recorded 187 hours. This increasing trend towards the end of the year hints at the gradual return of longer days, offering a warm reminder that brighter skies are just around the corner.
In December, Slovenia experiences a 27% chance of sunny weather, indicating a notable dip as winter sets in. This percentage falls below the sunniest months of the year, such as March (52%) and February (45%), reflecting the trend of decreasing sunshine as the year progresses. Notably, as the days grow shorter and colder, November offers just a 20% chance for sunshine, making December slightly more promising but still far from bright. Thus, while the likelihood of basking in the sun diminishes, December still carries a glimmer of hope for those wishing to enjoy a sunny winter day.
As the year winds down, December in Slovenia greets residents with a modest 8 hours of daylight, the shortest duration since the summer months. This decline from 9 hours in November signals the deepening embrace of winter, following a gradual decrease from the 15 hours enjoyed in the lush days of late spring and early summer. Observing the trends, daylight begins its steady ascent in January, climbing to 10 hours in February before springing forward in March, where it reaches 11 hours. The contrast is stark after the vibrant summer months, illustrating a clear cycle: longer days that nurture growth give way to the quieter, dimmer reflections of winter. As hours of sunlight wane, the cozy ambiance of the approaching holiday season blankets Slovenia, inviting moments of warmth and togetherness beneath the soft glow of those fleeting daylight hours.
As December arrives in Slovenia, the wind whispers its way through the landscape at an average speed of 1.5 m/s (approximately 3 mph). This gentle breeze reflects a trend observed throughout the year, where wind speeds remain consistently low, rarely exceeding 1.9 m/s (4 mph). The winter months usher in a distinct calmness, as the winds tend to be milder, especially in contrast to the slightly breezier springtime, where speeds hover around 1.9 m/s. December, with its soothing gusts, invites a serene atmosphere just in time for the holiday season, continuing the pattern of mild winds that characterizes Slovenia’s tranquil winters.
Weather in varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in , focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January both feature cold temperatures, but January experiences even chillier lows, with minimum temperatures dropping to -22°C (-8°F) compared to December's -17°C (1°F). The average temperature in January is slightly lower at -2°C (28°F), making it one of the coldest months of the year. Precipitation also sees a significant decrease from December's 88 mm (3.5 in) over 10 days to just 38 mm (1.5 in) over 5 days in January, indicating drier conditions. Humidity levels remain high, slightly increasing from 89% in December to 91% in January. For a detailed overview, check the weather in January.
December and February weather exhibit notable differences, particularly in temperature and precipitation. In December, the temperatures dip to a minimum of -17°C (1°F) and hover around an average of -1°C (30°F), peaking at 11°C (52°F). The month sees significant precipitation, totaling 88 mm (3.5 in) over approximately 10 days, and humidity remains high at 89%. Conversely, in February, temperatures are slightly milder, with a minimum of -16°C (3°F), an average of 1°C (34°F), and a maximum reaching 18°C (64°F). Precipitation is less intense than in December, amounting to 64 mm (2.5 in) across about 8 days, coupled with a slightly lower humidity level of 87%. For more detailed information, you can check weather in February.
In December, temperatures can drop to a chilly minimum of -17°C (1°F), with an average of -1°C (30°F) and a maximum of 11°C (52°F). The month is characterized by high humidity at 89% and considerable precipitation, totaling 88 mm (3.5 in) over about 10 days. In contrast, March sees a slight rise in temperatures, with a minimum still around -17°C (1°F) but an average of 4°C (39°F) and a maximum reaching 20°C (69°F). Although it experiences slightly lower precipitation, at 66 mm (2.6 in) across 12 days, March features a drop in humidity to 82%. For more detailed information on the weather in March, you can visit weather in March.
When comparing December and April weather, notable differences emerge. December features a frigid temperature range, with minimums dipping to -17°C (1°F) and an average temperature around -1°C (30°F). The month sees about 88 mm (3.5 in) of precipitation spread over 10 days and high humidity at 89%. In contrast, April experiences a milder climate, with minimum temperatures around -15°C (6°F) and an average of 8°C (47°F), peaking at a comfortable 26°C (78°F). While April has slightly more precipitation at 97 mm (3.8 in) over 13 days, the humidity drops to 79%, creating a more refreshing atmosphere. For more detailed information on weather during this month, check out the weather in April.
December and May exhibit stark contrasts in weather patterns. In December, temperatures dip to a minimum of -17°C (1°F) and hover around an average of -1°C (30°F), with a maximum reaching only 11°C (52°F). This winter month also sees significant humidity at 89% and experiences around 88 mm (3.5 in) of precipitation over 10 days. In contrast, May brings a much milder climate, with minimum temperatures starting at 0°C (32°F) and averaging 12°C (55°F), peaking at a pleasant 27°C (82°F). However, May is wetter, accumulating 184 mm (7.3 in) of precipitation over 21 days, albeit with lower humidity at 74%. For more details on the weather in May, visit weather in May.
December and June exhibit strikingly different weather characteristics. In December, temperatures range from a chilly minimum of -17°C (1°F) to a mild maximum of 11°C (52°F), with an average temperature of -1°C (30°F). The month often features high humidity levels at 89%, coupled with precipitation occurring on about 10 days, totaling 88 mm (3.5 in). In sharp contrast, June boasts a more temperate climate, with minimum temperatures of 3°C (38°F) and maximums reaching a warm 33°C (92°F), averaging around 18°C (64°F). This month experiences more rainfall, totaling 137 mm (5.4 in) over 17 days, although with a lower humidity of 75%. For more detailed insights, you can check the weather in June.
December and July present a striking contrast in weather conditions. In December, temperatures can plummet to a minimum of -17°C (1°F), with an average temperature of -1°C (30°F) and occasional highs reaching up to 11°C (52°F). This month is characterized by high humidity at 89% and experiences about 88 mm (3.5 in) of precipitation over roughly 10 days. In contrast, July offers a much warmer climate, with minimum temperatures around 7°C (45°F) and an average temperature of 19°C (66°F), while maximum readings can soar to 31°C (88°F). This summer month sees significantly more rainfall, accumulating 175 mm (6.9 in) of precipitation across 17 days, along with lower humidity levels at 74%. For a detailed look at the weather in July, you can explore weather in July.
December and August present stark contrasts in weather. In December, temperatures can plummet to a minimum of -17°C (1°F), with an average temperature around -1°C (30°F) and a maximum reaching 11°C (52°F). The month is characterized by high humidity at 89% and significant precipitation of 88 mm (3.5 in) over about 10 days. Conversely, August offers a much milder climate, with temperatures ranging from a minimum of 6°C (43°F) to a comfortable average of 19°C (66°F), peaking at 33°C (91°F). The August weather is generally drier, with precipitation totaling 180 mm (7.1 in) over 17 days and a lower humidity level of 68%. For a closer look at the weather specifics, you can refer to weather in August.
December and September present strikingly different weather conditions. In December, temperatures typically range from a chilly -17°C (1°F) to a mild 11°C (52°F), with an average of around -1°C (30°F). The month is marked by high humidity at 89% and precipitation totaling 88 mm (3.5 in) over approximately 10 days. In contrast, September enjoys significantly warmer temperatures, with a minimum of 0°C (31°F) and a maximum of 28°C (82°F), averaging 14°C (57°F). This month sees more rainfall, with precipitation reaching 168 mm (6.6 in) over about 14 days, but the humidity is lower at 74%. For more details, check out the weather in September.
In comparing December and October weather, we see stark contrasts in temperatures and conditions. December experiences much colder temperatures, with a minimum of -17°C (1°F), an average of -1°C (30°F), and a maximum of 11°C (52°F). In contrast, October enjoys milder conditions, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 22°C (71°F), averaging 9°C (49°F). While both months have similar levels of precipitation, with December recording 88 mm (3.5 in) and October slightly lower at 78 mm (3.1 in), the high humidity remains comparable, standing at 89% for December and 88% for October. For more detailed information, you can visit the weather in October.
December weather is noticeably colder than November, with average temperatures dropping from 4°C (40°F) in November to -1°C (30°F) in December. The minimum temperatures also plunge further, from -13°C (8°F) in November to -17°C (1°F) in December, while maximum temperatures reach only 11°C (52°F). Precipitation levels remain similar, with December receiving 88 mm (3.5 in) compared to November's 106 mm (4.2 in) over the same number of days. Humidity stays relatively consistent, hovering around 89% in December compared to 90% in November. For more details about November weather, you can check out weather in November.
As December rolls in, the wintry chill sets a stark contrast to the milder months that precede it. With temperatures dipping significantly, the average falls below freezing, while the sunsets arrive much earlier, wrapping the days in a cozy darkness. Accompanied by a notable humidity of 89%, the atmosphere feels crisp and biting, often enhanced by the 88 mm of precipitation seen over roughly ten days. This month truly embodies the winter season, making it a time for warm beverages and festive gatherings. For those curious about the broader climate trends, be sure to explore more on Climate.