Last updated: August 27, 2025
December in Slovenia brings a chilly embrace as temperatures fluctuate between a maximum of 17°C (63°F) and a minimum of -7°C (20°F), settling around a crisp average of 3°C (37°F). The month is characterized by an humidity level of 89%, creating a refreshing yet damp atmosphere. With a total precipitation amount of 67 mm (2.7 in) spread over 8 days, December can be quite wet, making it essential for visitors to indulge in the cozy indoor charm the country offers. Whether basking in the festive spirit or exploring the winter landscapes, Slovenia in December is a unique experience for all.
In December, Slovenia experiences a noticeable drop in temperatures as winter sets in. With minimums dipping to around -7°C (20°F) and averages around 3°C (37°F), it's clear that cozy winter wear becomes essential. The maximum temperatures, reaching up to 17°C (63°F), offer a brief respite from the chill, but the overall trend reflects a sharp transition into the colder months. Compared to the milder conditions of previous months, December's temperatures signal a shift, inviting both locals and visitors to embrace the season's festive atmosphere under a crisp, wintry sky.
In December, Slovenia experiences a noteworthy shift in precipitation patterns as the year concludes. With 67 mm (2.7 in) of rainfall over 8 days, the month showcases a slight dip from the previous month's 81 mm, yet maintains a consistent level of moisture that supports the winter landscape. This reflects a trend of gradually decreasing precipitation as the year winds down, following the peak in May, which recorded an impressive 129 mm. December's balanced rainfall serves to provide a resilient and refreshing atmosphere, preparing for the cold winter months ahead while subtly echoing the wetter seasons of spring and summer.
In December, Slovenia experiences a notable rise in humidity, maintaining a high level of 89%—a figure consistent with November's readings. This trend of elevated humidity during the winter months is characteristic of the region, as seen with January's substantial 90%. As temperatures drop and the landscape embraces the chill of winter, moisture in the air tends to linger. As the year progresses to spring, humidity gradually decreases, reaching its lowest point at 60% in August. However, the end of the year reveals a return to those damp conditions, setting the stage for a cozy, sometimes foggy atmosphere that typifies Slovenia's winter charm.
In December, Slovenia experiences a low UV Index of 2, indicating that sun exposure poses minimal risk, with an extended burn time of 45 minutes. This month marks a shift towards lower UV readings compared to the heightened levels of summer, where the index reached as high as 9 in June and July. As winter approaches, the decreasing UV levels signify a retreat from the intense sunlight of the previous months, creating a safer environment for outdoor activities. For those venturing outside, it’s still wise to be aware of the UV index, even in the colder months—knowing when and how to protect your skin is key. For more information on UV levels throughout the year, check the detailed UV Index for Slovenia.
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In Slovenia, the trend in sunshine hours throughout the year reveals a captivating transformation from winter to summer. January begins the year with a modest 163 hours, slowly gaining momentum as February brings 222 hours. By the arrival of March, sunshine leaps to 299 hours, setting the stage for the vibrant spring ahead. As the days lengthen, April sees a considerable increase to 332 hours, followed by a robust 366 hours in May. The peak of summer shines brightly in July with 423 hours, the apex of sunshine intensity. However, as summer wanes in August, the count gently recedes to 389 hours, followed by a gradual decline through the autumn months. By December, sunshine settles back to 201 hours, mirroring November's similar count, thus capping off the year with a serene winter glow that hints at the promise of longer days to come.
In Slovenia, December brings a 32% chance of sunny weather, a shift from the gloomier November, which sees only a 26% opportunity for sunshine. As the year progresses, the likelihood of sunny days fluctuates, with March peaking at 55% and April and June both enjoying substantial sunny spells. However, December's percentage follows a familiar winter trend, showing a slight increase from the late autumn months while still remaining relatively low compared to spring and early summer. This hints that while sun-kissed days are possible, the picturesque winter backdrop of Slovenia may predominantly be blanketed in clouds, adding to the charm of the season.
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 rolls in Slovenia, the average wind speed settles at 2.1 m/s (5 mph), reflecting a gentle breeze that mirrors the transition from fall to winter. This month sees a slight increase compared to the calm of November, which recorded 1.9 m/s (4 mph). Throughout the year, wind speeds in Slovenia have shown a tendency to fluctuate modestly, with the most breezy months typically occurring in spring, peaking at 2.8 m/s (6 mph) in April. Interestingly, the summer months experience a noticeable dip in wind activity, with August hitting a low of 1.8 m/s (4 mph). As the year draws to a close, the December winds, although mild, maintain a consistent rhythm, offering a serene backdrop to the snowy landscape.
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.
In December, temperatures fluctuate more significantly, with a minimum of -7°C (20°F) and a maximum of 17°C (63°F), leading to an average temperature of 3°C (37°F). This month experiences relatively high precipitation, totaling 67 mm (2.7 in) over 8 days, and humidity levels hover around 89%. In contrast, January is colder overall, with temperatures dropping to a minimum of -15°C (5°F) and peaking at 14°C (58°F), resulting in a slightly lower average temperature of 1°C (34°F). The precipitation in January decreases to 31 mm (1.2 in) over just 6 days, while humidity remains close to 90%. For a more detailed outlook, check the weather in January.
December and February present contrasting weather patterns, though both months experience cold temperatures typical of winter. In December, the average temperature hovers around 3°C (37°F), with a minimum of -7°C (20°F) and a mild maximum of 17°C (63°F). This month also has higher humidity at 89% and slightly more precipitation, totaling 67 mm (2.7 in) over eight days. In comparison, February is a bit colder, with an average temperature of 4°C (39°F), a minimum dropping to -12°C (11°F), and a higher maximum of 20°C (68°F). Precipitation is lower in February at 53 mm (2.1 in), but the humidity decreases slightly to 84%. For more detailed insights into February weather, you can refer to weather in February.
In December, the weather remains relatively mild with average temperatures around 3°C (37°F), peaking at 17°C (63°F). While it is not uncommon to experience chilly lows of -7°C (20°F), December sees a higher humidity level at 89% and about 67 mm (2.7 in) of precipitation spread over 8 days. In contrast, March often feels colder with minimum temperatures dipping to -18°C (-1°F), despite an average rising to 7°C (44°F) and maximums reaching 23°C (73°F). During this month, the precipitation decreases slightly to 46 mm (1.8 in) over 9 days, and humidity drops to 78%. For more details on the weather during this month, check out weather in March.
December and April present quite a contrast in weather conditions. In December, temperatures can dip as low as -7°C (20°F) and typically hover around an average of 3°C (37°F), with maximums reaching 17°C (63°F). The month experiences relatively high humidity at 89% and records 67 mm (2.7 in) of precipitation over about 8 days. In comparison, April showcases milder conditions with a minimum temperature of -5°C (24°F) and an average of 12°C (53°F), peaking at a pleasant 28°C (82°F). Although April sees slightly less total precipitation at 60 mm (2.4 in) over 10 days, it offers significantly lower humidity at 73%. For a more detailed overview, check out weather in April.
December and May present contrasting weather conditions. In December, temperatures can dip as low as -7°C (20°F) and typically average around 3°C (37°F), whereas in May, temperatures range from a minimum of 3°C (37°F) to a maximum of 32°C (89°F), with an average of 16°C (60°F). December experiences higher humidity at 89% and about 67 mm (2.7 in) of precipitation over 8 days, while May sees lower humidity at 71% and significantly more rainfall, totaling 129 mm (5.1 in) spread over 17 days. For more details on the specific weather patterns in May, you can check out this link: weather in May.
December and June present distinctly different weather patterns. In December, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 17°C (63°F), with an average around 3°C (37°F). The month experiences high humidity levels at 89%, alongside 67 mm (2.7 in) of precipitation over approximately 8 days. In contrast, June boasts significantly warmer temperatures, starting at 7°C (45°F) and soaring to a maximum of 36°C (97°F), with an average of 21°C (70°F). While June sees more precipitation at 85 mm (3.3 in), it also has 13 rainy days, but the humidity is lower at 73%. For more detailed information, you can check the weather in June.
The contrast between December and July weather is quite striking. In December, temperatures can drop as low as -7°C (20°F) at night, with an average of 3°C (37°F) and a maximum reaching 17°C (63°F). This month experiences high humidity at 89%, coupled with 67 mm (2.7 in) of precipitation over about 8 days. In stark contrast, July boasts much warmer temperatures, with a minimum of 10°C (50°F), an average of 22°C (72°F), and highs that can reach up to 36°C (97°F). Although July sees more precipitation at 95 mm (3.7 in) over 12 days, the overall humidity is lower at 70%. For a detailed overview, check out the weather in July.
December and August present stark contrasts in weather conditions. In December, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 17°C (63°F), with an average of 3°C (37°F). The month is characterized by high humidity levels at 89% and receives approximately 67 mm (2.7 in) of precipitation over 8 days. In contrast, August boasts warmer temperatures, with a minimum of 9°C (48°F) and an average of 22°C (72°F), peaking at a scorching 37°C (99°F). Although slightly wetter, with 88 mm (3.5 in) of precipitation over 11 days, its humidity is significantly lower at 60%. For more detailed insights, check out the weather in August.
In December, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 17°C (63°F), with an average around 3°C (37°F). The month experiences higher humidity at 89% and moderate precipitation of 67 mm (2.7 in) over approximately 8 days. In contrast, September offers warmer weather, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 33°C (91°F), averaging around 17°C (62°F). September sees more precipitation at 125 mm (4.9 in) over 11 days but with a significantly lower humidity of 65%. For more details, visit weather in September.
In December, temperatures drop significantly compared to October, with minimums plummeting to -7°C (20°F) and an average of just 3°C (37°F), whereas October enjoys milder conditions, ranging from a minimum of 0°C (32°F) and an average of 12°C (54°F). The maximum temperature in December reaches only 17°C (63°F), compared to a warm 26°C (79°F) in October. Both months see similar levels of precipitation, with December recording 67 mm (2.7 in) over 8 days and October slightly less at 66 mm (2.6 in) across 9 days. Humidity is notably higher in December at 89%, compared to 84% in October. For more detailed insights, check the weather in October.
In comparing the weather between November and December, December tends to be slightly colder with average temperatures ranging from -7°C (20°F) to a maximum of 17°C (63°F), compared to November's range from -5°C (23°F) to a high of 20°C (68°F). Precipitation is also a bit less in December, totaling 67 mm (2.7 in) over 8 days, while November sees slightly more with 81 mm (3.2 in) over 10 days. Both months maintain a high humidity level of 89%, contributing to the overall cool and damp conditions prevalent during this time. For a more detailed overview, you can check out the weather in November.
As December unfolds, Gorišnica experiences a chill that signals the heart of winter, in stark contrast to the milder months before it. Average temperatures plunge, heralding cooler days and crisp nights, while the air hangs heavy with an 89% humidity, often adding to the biting cold. This month also sees an uptick in precipitation, with rain or snow likely on about eight days, leading to a total of 67 mm of moisture that nourishes the landscape for the season ahead. For those who revel in the magic of winter, December's distinct chill and wetness illuminate a stark difference from the warmth of previous months, creating an enticing atmosphere that can be explored further in our Climate section.