Last updated: August 27, 2025
In December, Slovenia experiences a notable chill, with temperatures ranging from a brisk maximum of 13°C (55°F) to an icy minimum of -17°C (1°F), averaging around 1°C (33°F). The month is characterized by a high humidity level of 89%, contributing to a damp atmosphere. Rainfall is frequent, with total precipitation of 111 mm (4.4 in) spread across approximately 10 days. This combination of cold temperatures and moisture creates a winter landscape that is both serene and captivating, inviting visitors to embrace the season’s charm.
December in Slovenia marks the onset of winter, with temperatures that reflect the season's chill. As the month progresses, you can expect minimum temperatures dipping to -17°C (1°F), creating a frosty atmosphere perfect for enjoying the festive spirit. The average temperature hovers around 1°C (33°F), providing a cold yet invigorating backdrop to the holiday season. Although it feels brisk, mercury can rise to a pleasant maximum of 13°C (55°F) on milder days, offering a respite from the colder nights. This trend of fluctuating temperatures is characteristic of December, setting the stage for a picturesque winter landscape that beckons visitors to explore Slovenia's adventure-filled offerings, from winter sports to cozy village markets.
December in Slovenia brings a significant 111 mm (4.4 in) of precipitation, falling over approximately 10 days. This places it just below the wetter months of May and September, indicating a steady transition into winter conditions. As the year draws to a close, precipitation levels remain notably high, consistent with the trend of increased rainfall during the late autumn and early winter months. The pattern suggests that while December is not the wettest month, it maintains a robust level of moisture, setting the stage for a snowy January ahead, particularly as temperatures drop. This blend of rainfall and cooler temperatures often enhances the picturesque winter landscape, making December a uniquely beautiful time to experience Slovenia’s serene scenery.
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 minimal risk of harm from unprotected sun exposure. With a burn time of 45 minutes, skin protection is less of a concern compared to the height of summer months, when UV levels soar to 9 in June and July, demanding a vigilant approach to sun safety. Throughout the year, UV exposure can fluctuate significantly—from moderate levels in early spring to very high levels in late spring and summer, with a peak in May before gradually tapering off into the cooler months. This seasonal trend emphasizes the importance of monitoring UV levels to ensure proper protection against sun exposure. For more information, visit UV Index.
UV Risk Categories
December in Slovenia marks a gentle transition into winter, with 202 hours of sunshine illuminating the landscape. While the daylight hours are fewer compared to the vibrant summer months, where July boasts a generous 415 hours, December's sunshine still provides a warm embrace amidst the crisp, cool air. As the year winds down, the trend shows a gradual decrease in sunshine from the peak of summer toward the dimmer winter months, with a more pronounced dip from October's 275 hours and November's 194 hours. However, December offers a small resurgence, nudging slightly up from November, inviting residents and visitors alike to enjoy the serene beauty of the season. This subtle increase reminds us that even in the depths of winter, there are moments of brightness to cherish in Slovenia.
In December, Slovenia experiences a 31% chance of sunny weather, which is a notable increase compared to the 23% likelihood seen in November. This slight uptick suggests that while the winter chill sets in, there's still a glimmer of sunshine to be savored. As the year progresses from January to December, the trend generally shows a rise in sunny days, peaking in March at 55%. However, many months, including December, remain on the lower end of the spectrum, highlighting that while December holds some promise for sun, it still leans heavily towards cloudier conditions typical of winter. Embrace the winter landscape, but keep your eyes peeled for those rare sunny intervals!
As we move through the year in Slovenia, daylight duration reflects the changing seasons in a captivating rhythm. December, with its 8 hours of daylight, represents the twilight of the year, where the sun makes a brief but precious appearance. This marks a noticeable decrease from the more generous 14 hours in May and 15 hours during the summer months of June and July. The transition from the vibrant sunlit days of spring to the hibernation of winter is evident as daylight diminishes from 11 hours in March to the year's darkest days in December. The gradual shift highlights the beauty of seasonal variation, inviting reflections on the cozy charm of Slovenia's December while eagerly anticipating the return of longer days in the coming months.
As December settles in Slovenia, the wind whispers a calm presence with an average speed of 1.5 m/s (3 mph), mirroring the gentle breezes of the preceding months. This trend of minimal wind is a refreshing contrast to the more variable gusts experienced during earlier months; both October and February saw slightly stronger winds at 1.7 m/s (4 mph), while the warm summer months of June and August brought similar softness. Throughout the year, Slovenia's wind patterns reveal a consistency that endows each season with its unique character, inviting residents and visitors alike to embrace the serene landscapes stirred softly by nature's breath. As we inch towards the end of the year, the December winds promise a tranquil close, perfectly complementing the peaceful winter ambiance.
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 present a notable contrast in weather patterns. In December, temperatures range from a chilly minimum of -17°C (1°F) to a mild maximum of 13°C (55°F), with an average of 1°C (33°F). This month also sees substantial precipitation, totaling 111 mm (4.4 in) over approximately 10 days, accompanied by high humidity at 89%. In comparison, January experiences slightly colder conditions, with temperatures dipping to -16°C (4°F) at their lowest and reaching a maximum of 12°C (53°F), averaging -1°C (31°F). However, January is characterized by significantly less precipitation, recording just 46 mm (1.8 in) over about 6 days, and slightly higher humidity at 91%. For more detailed information, you can check the weather in January.
In December, temperatures can drop to a chilling minimum of -17°C (1°F), with an average of around 1°C (33°F) and maximums reaching 13°C (55°F). The month is characterized by significant precipitation, totaling 111 mm (4.4 in) over about 10 days, coupled with high humidity at 89%. In contrast, February offers slightly milder conditions, with minimum temperatures of -14°C (8°F) and an average of 2°C (37°F), while maximums can reach up to 18°C (65°F). The precipitation decreases to 79 mm (3.1 in) spread over 8 days, and humidity levels are slightly lower at 87%. For more detailed insights, check out the weather in February.
In December, temperatures in Domžale can plunge to a minimum of -17°C (1°F), with an average of around 1°C (33°F) and a maximum reaching 13°C (55°F). This month experiences significant precipitation, totaling 111 mm (4.4 in) over about 10 days, coupled with high humidity at 89%. In contrast, March brings a slight warming trend with minimum temperatures around -16°C (3°F) and an average temperature of 5°C (41°F), climbing to a maximum of 21°C (70°F). Precipitation is reduced to 70 mm (2.8 in) over 9 days, and humidity drops to 82%. For a deeper understanding of the weather conditions, you can explore the detailed weather in March.
December and April present a stark contrast in weather patterns. In December, temperatures can plummet to a minimum of -17°C (1°F), with average highs around 1°C (33°F) and a notable humidity of 89%. This month sees approximately 111 mm (4.4 in) of precipitation, typically spread over about 10 days, creating a cold and damp atmosphere. In contrast, April enjoys more moderate conditions, with minimum temperatures around -9°C (16°F) and average highs reaching 10°C (50°F), peaking at a pleasant 25°C (77°F). While April still experiences rainfall with 100 mm (3.9 in) over about 12 days, the lower humidity of 79% contributes to a more comfortable environment. For more detailed insights on the weather during this month, check out weather in April.
December and May present stark contrasts in weather. In December, temperatures can drop as low as -17°C (1°F), with an average around 1°C (33°F) and a maximum of 13°C (55°F). The month experiences significant precipitation, totaling 111 mm (4.4 in) over about 10 days, accompanied by high humidity at 89%. In contrast, May offers a much milder climate with temperatures starting at a minimum of 0°C (32°F), averaging 14°C (57°F), and reaching up to 27°C (81°F). Precipitation increases to 159 mm (6.3 in), spread over 19 days, but the humidity decreases to 74%. For more detailed insights, check the weather in May.
In December, temperatures can drop significantly, with lows around -17°C (1°F) and an average of 1°C (33°F), making it quite a chilly month. The humidity is notably high at 89%, contributing to a damp feel, and precipitation occurs on about 10 days, totaling 111 mm (4.4 in). In contrast, June experiences a much warmer climate, with minimum temperatures of 4°C (40°F) and an average of 19°C (66°F) that can peak at 34°C (93°F). The humidity in June is significantly lower at 75%, and although it has a slightly higher number of rainy days (14), the overall precipitation of 96 mm (3.8 in) is less than that of December. For a more detailed look at the weather in June, you can check weather in June.
December and July present stark contrasts in weather. In December, temperatures can plummet to a minimum of -17°C (1°F), with an average of just 1°C (33°F) and a maximum reaching 13°C (55°F). The month is characterized by high humidity at 89% and frequent precipitation, averaging 111 mm (4.4 in) over about 10 days. Conversely, July boasts much warmer conditions, with minimum temperatures of 9°C (49°F), an average of 20°C (68°F), and maxima hitting 32°C (90°F). Although July sees slightly higher precipitation at 119 mm (4.7 in), it occurs over more days—around 16 in total—and features lower humidity at 74%. For a more detailed look at July's conditions, check out weather in July.
In December, temperatures can drop significantly, with a minimum of -17°C (1°F) and an average of just 1°C (33°F), while the maximum reaches a comfortable 13°C (55°F). The month experiences considerable precipitation, totaling 111 mm (4.4 in) over approximately 10 days, accompanied by high humidity levels of 89%. In contrast, August boasts much warmer conditions, featuring a minimum temperature of 8°C (46°F) and a pleasant average of 20°C (69°F), with peaks soaring up to 35°C (95°F). Although it is slightly wetter than December, August sees 125 mm (4.9 in) of rainfall spread over 15 days, but with lower humidity at 68%. For more detailed insights, you can check the weather in August.
When comparing the weather in December and September, it is clear that December is much colder, with temperatures ranging from a minimum of -17°C (1°F) to a maximum of 13°C (55°F) and an average of around 1°C (33°F). In contrast, September enjoys milder conditions, with minimum temperatures at 0°C (33°F) and maximums reaching 28°C (83°F), leading to an average temperature of 15°C (60°F). Additionally, precipitation levels vary, with December receiving 111 mm (4.4 in) over approximately 10 days, while September sees a higher total of 152 mm (6.0 in) spread across 13 days. Moreover, the humidity is significantly higher in December at 89%, compared to September's 74%. For more details on September's weather, you can visit weather in September.
December weather brings a significant chill compared to October, with temperatures plummeting to a minimum of -17°C (1°F) and an average of just 1°C (33°F). In contrast, October enjoys milder conditions, featuring a minimum of -1°C (30°F) and an average of 10°C (51°F), with highs reaching up to 23°C (74°F). While precipitation is slightly higher in December at 111 mm (4.4 in) over 10 days, October sees 87 mm (3.4 in) of rainfall over 9 days. Humidity levels remain comparable, with December at 89% and October at 88%. For more details on October’s weather, visit weather in October.
In comparing the weather between November and December, December exhibits significantly colder temperatures, with a minimum of -17°C (1°F) compared to November's minimum of -10°C (14°F). While November presents milder averages, with an average temperature of 6°C (42°F) and a maximum of 18°C (65°F), December's average temperature drops to 1°C (33°F) and peaks at 13°C (55°F). Furthermore, precipitation is somewhat lower in December at 111 mm (4.4 in) over 10 days, compared to November's total of 133 mm (5.2 in) over 11 days. Humidity remains relatively similar, with December at 89% and November slightly higher at 90%. For more information, you can check the weather in November.
As December arrives, the weather presents a stark contrast to the milder months preceding it. With an average temperature hovering around freezing, the chill sets in, accompanied by high humidity levels of 89% that make the air feel even colder. This month sees a noticeable increase in precipitation, with frequent rainy days that can shift to snow as temperatures drop close to their minimums. As we prepare for the festive season, the shift into winter brings not just a drop in temperatures but also a unique charm to the landscape. For more insights on how December fits into the overall climate pattern, visit Climate.