Last updated: August 27, 2025
December in Slovenia presents a chilly yet captivating climate. With maximum temperatures reaching up to 14°C (58°F) and an average of 1°C (35°F), the month experiences a dramatic shift into winter's embrace, showcasing a minimum of -17°C (2°F). This period is marked by significant precipitation, totaling 94 mm (3.7 in) across 9 days, often adding to the magical atmosphere. High humidity levels at 89% further enhance the season's crispness, creating a picturesque winter wonderland that beckons outdoor enthusiasts and those seeking the serene beauty of Slovenia's landscapes.
As December descends upon Slovenia, temperatures take a noticeable dip, with minimums plummeting to a chilly -17°C (2°F). The month unfolds with an average temperature hovering around 1°C (35°F), creating a stark contrast to the milder autumn months preceding it. Daytime highs can reach a modest 14°C (58°F), offering brief moments of respite from the biting cold. This trend marks a significant shift from the preceding months, where temperatures in November were a bit more forgiving, averaging 6°C (43°F). As Slovenia embraces its winter season, the frosty air and often snowy landscapes invite both local and visiting adventurers to revel in the beauty of a winter wonderland.
In December, Slovenia experiences a notable precipitation level of 94 mm (3.7 in), mirroring the trend seen in both April and November, which also showcase substantial rainfall. This month sees about 9 days of precipitation, maintaining a consistent rainfall pattern throughout the late autumn and early winter months. As the year wraps up, December's precipitation serves as a reminder of the wetter months earlier in the year, notably May with its peak of 150 mm (5.9 in), when the region experiences the highest rainfall. This continuity in precipitation signifies a humid climatic trend, preparing the landscape for the cold winter 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.
As December rolls into Slovenia, the UV Index dips to 2, marking a period of low exposure to harmful UV rays, with a burn time of 45 minutes. This trend reflects the gradual decline in UV intensity as the year draws to a close. From the summer months of July and August, where the index peaked at 9 (very high exposure), the UV levels steadily decreased, corresponding to shorter burn times and milder sun conditions. With January carrying over a similar UV index of 2, it's the perfect opportunity to enjoy outdoor activities with minimal sun risk. For more detailed insights into UV conditions throughout the year, visit 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.
When considering the likelihood of sunny weather in December in Slovenia, the trends reveal a modest probability of sunshine at 33%. This marks a slight increase from November's 24%, indicating a brighter start to winter, although still lower than the more optimistic months of spring and summer. Notably, as the year progresses, the chance of sunshine tends to peak in March at 55%, suggesting a clear shift towards sunnier days as the seasons change. Overall, while December might not offer extensive sun-filled afternoons, it does hint at a gradual transition into the sunnier months ahead.
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 average wind speed hovers around 1.6 m/s (4 mph), reflecting a gentle whisper from nature rather than a robust winter howl. This month marks a trend of stability, where wind speeds have notably oscillated within the range of 1.5 to 2.0 m/s throughout the year. It seems the winds hold a quiet conversation during the cold months, particularly in December, maintaining a consistent calm that complements the serene winter landscape. Compared to the breezy conditions of early winter, this slight drop in speed toward the year's end invites cozy evenings indoors, as the soft breeze dances through the frosty air rather than whipping it into a frenzy. Overall, the wind's subdued presence in December harmonizes beautifully with the tranquil charm of Slovenia's winter season.
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 notable differences in weather patterns, despite being consecutive winter months. In December, the temperatures range from a minimum of -17°C (2°F) to a maximum of 14°C (58°F), with an average temperature of 1°C (35°F). This month also experiences higher precipitation, totaling 94 mm (3.7 in) over about 9 days, coupled with a humidity level of 89%. In contrast, January tends to be slightly colder, with temperatures dipping a bit lower, from -18°C (0°F) to a maximum of 12°C (54°F) and an average of 0°C (32°F). Additionally, January sees significantly reduced precipitation at 39 mm (1.5 in) over just 6 days and a humidity level of 91%. For more detailed information on weather in January, you can check weather in January.
In December, temperatures can plunge to a chilly -17°C (2°F), with an average temperature of 1°C (35°F) and a maximum of 14°C (58°F). The month typically experiences around 94 mm (3.7 in) of precipitation over 9 days, coupled with high humidity levels averaging 89%. In contrast, February offers slightly milder weather, with minimum temperatures around -14°C (7°F) and an average of 3°C (38°F), peaking at 19°C (66°F). Precipitation decreases to 68 mm (2.7 in) over 8 days, and humidity is marginally lower at 87%. For a closer look, you can check the weather in February.
In December, the weather tends to be much colder, with temperatures ranging from a minimum of -17°C (2°F) to a maximum of 14°C (58°F), resulting in an average temperature of around 1°C (35°F). Precipitation is relatively high at 94 mm (3.7 in), falling over 9 days, and the humidity is notably high at 89%.
In contrast, March experiences a milder climate, with temperatures ranging from a minimum of -13°C (8°F) to a maximum of 21°C (71°F) and an average of 6°C (42°F). Although precipitation is lower at 60 mm (2.4 in) spread over 10 days, the humidity decreases to 82%. For more details, check out the weather in March. This shift from frigid December to a warmer March marks a transition into spring, bringing a welcome change in weather conditions.
December and April present quite contrasting weather patterns. In December, temperatures can drop as low as -17°C (2°F), with an average of 1°C (35°F) and a maximum reaching 14°C (58°F). The month experiences high humidity at 89%, alongside 94 mm (3.7 in) of precipitation over approximately 9 days. In stark contrast, April sees milder temperatures, with a minimum of -10°C (14°F), an average of 10°C (50°F), and a maximum of 26°C (79°F). Despite having a similar total precipitation of 94 mm (3.7 in), April experiences slightly more rainy days at 12, coupled with a lower humidity level of 79%. For more details on the weather during that month, you can check out weather in April.
December and May exhibit strikingly different weather patterns. In December, temperatures can plummet to a minimum of -17°C (2°F), with an average high of only 14°C (58°F). The month experiences considerable precipitation, amounting to 94 mm (3.7 in) over approximately 9 days, and the humidity remains high at 89%. In contrast, May brings more moderate conditions, with temperatures ranging from a minimum of 0°C (32°F) to a pleasant maximum of 28°C (83°F) and an average temperature of 14°C (58°F). However, it also sees a higher total precipitation of 150 mm (5.9 in) spread over 19 days, accompanied by a significantly lower humidity level of 74%. For a closer look at May's weather, visit weather in May.
December brings a chill to the air, with temperatures ranging from a biting -17°C (2°F) to a moderate 14°C (58°F), while the average hovers around 1°C (35°F). The month is marked by high humidity levels at 89% and 94 mm (3.7 in) of precipitation over about 9 days, contributing to a wintry atmosphere.
In contrast, June offers a much warmer and more inviting climate. Temperatures start at a mild 5°C (42°F) and can peak at a sweltering 34°C (93°F), with an average of 19°C (67°F). Although June sees slightly less precipitation at 89 mm (3.5 in) over 14 days, the humidity is notably lower at 75%, making it generally more comfortable. For more details, visit weather in June.
December and July present stark contrasts in weather conditions. In December, temperatures can plummet to a minimum of -17°C (2°F), with an average temperature of just 1°C (35°F) and a maximum of 14°C (58°F). This month also experiences high humidity at 89%, along with 94 mm (3.7 in) of precipitation over 9 days. In contrast, July boasts a much milder climate, with temperatures ranging from a minimum of 10°C (49°F) to a maximum of 33°C (91°F) and an average of 21°C (69°F). Although July sees more total precipitation at 132 mm (5.2 in) over 15 days, the lower humidity at 74% creates a more comfortable summer atmosphere. For a closer look, check out the weather in July.
In December, temperatures can be quite frigid, with a minimum of -17°C (2°F) and an average of around 1°C (35°F), making it a stark contrast to the warm August weather, where temperatures range from a minimum of 7°C (45°F) to an average of 21°C (69°F) and can reach a maximum of 35°C (96°F). December sees a higher humidity level at 89%, contributing to a chilly ambiance, whereas August experiences more moderate humidity at 68%. Additionally, December has about 94 mm (3.7 in) of precipitation over 9 days, while August receives a slightly higher 114 mm (4.5 in) across 14 days, indicating a more pronounced summer pattern. For more specific insights on August weather conditions, you can refer to the detailed information available here: weather in August.
December and September present contrasting weather conditions. In December, temperatures range from a frigid min of -17°C (2°F) to a max of 14°C (58°F), with an average temperature of 1°C (35°F). The month sees a considerable amount of precipitation, totaling 94 mm (3.7 in) over about 9 days, accompanied by high humidity at 89%. In contrast, September experiences much milder temperatures, with a minimum of 1°C (34°F) and a peak max of 29°C (85°F), resulting in an average of 15°C (60°F). This month is wetter overall, receiving 134 mm (5.3 in) of rain across 13 days, but the humidity is relatively lower at 74%. For a detailed look at the specifics of September's weather, visit weather in September.
In December, the weather takes a significant turn towards winter, with temperatures ranging from a chilling minimum of -17°C (2°F) to a maximum of 14°C (58°F), resulting in an average temperature of just 1°C (35°F). This contrasts sharply with October, which enjoys much milder conditions, where temperatures range from a minimum of -1°C (30°F) to a pleasant maximum of 23°C (74°F), leading to a more comfortable average of 11°C (52°F). Additionally, December experiences more precipitation (94 mm or 3.7 in) over about 9 days, while October sees slightly less (76 mm or 3.0 in) under similar conditions. The humidity remains relatively high in both months, with December at 89% and October at 88%. For more detailed insights, you can view the weather in October.
In November, the weather was relatively milder with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 20°C (68°F), and an average temperature of 6°C (43°F). The month saw slightly higher precipitation at 108 mm (4.2 in) over 10 days and maintained a humidity level of 90%. In contrast, December brought much colder conditions, with temperatures dropping significantly, reaching a minimum of -17°C (2°F) and only peaking at 14°C (58°F) for an average of 1°C (35°F). While December had a total precipitation of 94 mm (3.7 in) over 9 days and a similar humidity of 89%, its frigid temperatures marked a stark shift from the milder climate experienced in November. For more detailed insights, you can refer to the weather in November.
As December settles in, it brings a notable chill that sets it apart from the preceding months. With average temperatures hovering around 1°C (35°F) and the potential for nighttime lows plunging to -17°C (2°F), this month transforms the landscape into a winter wonderland. The increased humidity at 89% and precipitation of 94 mm (3.7 in) over nine days contribute to an atmosphere that feels distinctly brisk and damp. Unlike the milder temperatures of fall, December heralds the arrival of winter, inviting us to embrace cozy indoor activities while enjoying the beauty of frosted surroundings. For a deeper understanding of how December fits into the broader climatic patterns of the region, visit Climate.