January Weather in , Slovenia

Last updated: August 27, 2025

In January, Slovenia experiences a diverse range of temperatures, with a maximum of 12°C (53°F) and a minimum plummeting to -16°C (4°F). The average temperature hovers around a chilly -1°C (31°F), setting the stage for a winter landscape. This month also sees a moderate precipitation amount of 46 mm (1.8 in), typically spread across 6 days, contributing to the region's enchanting snowy scenery. With humidity levels at a high 91%, January in Slovenia offers a uniquely crisp yet damp winter atmosphere, perfect for those who embrace the beauty of the season.

January Temperature in

In January, Slovenia experiences a captivating winter chill, with temperatures swinging from a frigid minimum of -16°C (4°F) to a milder maximum of 12°C (53°F), resulting in an average of -1°C (31°F). This month serves as a stark reminder of the season's bite, especially as it follows December's plunge to -17°C (1°F). However, the cold begins to retreat as February rolls in, bringing slightly warmer conditions with an average of 2°C (37°F), hinting at the gradual transition toward spring. As winter wanes, the trend continues into March, where the thermometer nudges upward again, averaging 5°C (41°F) amidst frequent snow-covered landscapes, promising a transition that will eventually lead to the blossoming warmth of April and beyond.

January Weather in : Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in , showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In , January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec313641495766686859514233
Data source: Temperature data for generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in

January in Slovenia experiences a modest precipitation total of 46 mm (1.8 in), with rainfall spread over just 6 days. This sets the stage for a gradual increase in wet conditions as winter transitions into spring. By February, precipitation nearly doubles, reaching 79 mm (3.1 in), showing that winter is still assertive but beginning to relent. The trend continues into March, where the rainfall begins to stabilize around 70 mm (2.8 in) over 9 days. This early part of the year is characterized by relatively low precipitation, but as we move into spring and May, the totals surge, peaking at a striking 159 mm (6.3 in) by late spring. The pattern suggests a significant shift toward more rainfall from late winter through autumn, highlighting Slovenia’s dynamic climate.

January Precipitation Trends in

The chart displays monthly precipitation patterns in , with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In , January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4679701001599611912515287133111
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in

In Slovenia, January marks the peak of humidity, with levels reaching an impressive 91%. This high moisture content sets the stage for a winter landscape, enveloped in a cool, crisp atmosphere. As the months progress, humidity gradually decreases, dipping to 87% in February and further to 82% in March. By April, the air feels slightly drier at 79%, continuing a downward trend through the spring months. As summer arrives, humidity stabilizes around 74% from June to July, before dipping to its annual low of 68% in August. However, as autumn approaches, the humidity begins to creep back up, starting with 74% in September and soaring to 90% in November, culminating in a 88% reading in October. This cyclical pattern of high humidity in winter and lower levels in summer beautifully illustrates Slovenia's evolving climate throughout the year.

January Average Humidity in

This chart illustrates the average monthly humidity levels in , with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%82%79%74%75%74%69%74%88%90%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in

In January, Slovenia experiences a UV Index of 2, categorized as low, which means the risk of harm from unprotected sun exposure is minimal, allowing for a burn time of approximately 45 minutes. As the months progress, the UV Index gradually increases, hitting a moderate 3 in February and 5 by March, where a notable shift towards more moderate exposure occurs. The trend continues into April with a high Index of 6. However, the peak months arrive in May and June, when figures soar to an intense 8 and 9, leading to a reduction in burn time to just 15 minutes under the strong sun. This pattern plateaus during July and August before tapering off in the fall, with a drop to 4 and 3 in October and November, and sliding back to low levels of 2 in December. For further insights and detailed information on UV exposure, check the UV Index.

Maximum UV Index Levels in for January

The chart shows the monthly maximum UV Index (UVI) for in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987432
Data source: January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in

In Slovenia, January greets the New Year with an average of 178 hours of sunshine, a modest yet promising start to the year. As winter transitions into spring, February sees a rise to 215 hours, hinting at longer, brighter days ahead. March truly begins to shine, boasting 300 hours as daylight lingers longer, and the sun's warmth becomes more palpable. By the time April rolls around, sunlight hours increase significantly to 331, with May following suit at 355 hours, creating the perfect backdrop for blooming landscapes. The sun reaches its zenith in July, basking the country in an impressive 415 hours, while August starts to transition slowly with 382 hours. As autumn approaches, the hours of sunshine gradually taper off, with October at 275 and November at 194, reminding us that the enchanting glow of Slovenian summers will soon give way to the serene beauty of winter once again, finishing with 202 hours in December. This cyclical dance of light not only influences the scenery but also enriches the vibrant culture and outdoor lifestyle that characterize Slovenia throughout the year.

Monthly Sunshine Duration in : January Highlighted

The January sunshine duration represents the total number of hours experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec178h215h300h331h355h396h415h382h309h275h194h202h
Data source: January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in During January

In Slovenia, January greets you with a modest 26% chance of sunny weather, making it one of the cloudier months of the year. As winter progresses into February, the likelihood of sunshine increases significantly to 41%, hinting at the gradual transition towards brighter days. This upward trend continues into March, where the chances soar to 55%, marking a notable shift as spring approaches. However, the following months vary, with April dipping to 34% and May slightly lower at 31%. The weather stabilizes around 50% in June, before fluctuating again in the summer months. Overall, January's sun exposure, while limited, sets the stage for a brightening outlook in the following weeks.

Percentage of Sunny Days in January in

The chart illustrates the percentage of sunny days in throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%41%55%34%32%50%45%42%49%34%23%31%
Data source: January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in in January

In Slovenia, January heralds the chilly depths of winter with just 9 hours of daylight, a stark contrast to the longer days ahead. As the year progresses into February, daylight begins its gradual ascent to 10 hours, lifting spirits with a promise of warmer, brighter days. This trend continues through March and April, where daylight reaches 11 and 13 hours, respectively, signaling the vibrant awakening of spring. By May and June, the sun bathes the landscape in 14 and 15 hours of light, perfect for outdoor adventures. Interestingly, this peak daylight duration of 15 hours extends into July but begins to wane in August, cascading down to 14 hours. The days gradually shorten as autumn approaches, with 12 hours in September, before dipping back to 10 hours in October. As winter circles back, November and December offer just 9 and 8 hours of daylight, encapsulating the cyclical rhythm of nature in this enchanting region.

Average Daylight Hours in for January

The chart illustrates the variation in daylight duration in throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 3m10h 20m11h 56m13h 34m14h 59m15h 42m15h 19m14h 4m12h 29m10h 51m9h 25m8h 40m
Data source: daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in

In January, Slovenia experiences a gentle breeze with an average wind speed of 1.5 m/s (3 mph), setting a tranquil tone for the winter months. This calmness continues into February, where the wind picks up slightly to 1.8 m/s (4 mph), maintaining a steady pace through the spring months of March and April. Interestingly, the wind speed stabilizes at 1.8 m/s for both April and May, suggesting a consistent weather pattern as nature awakens. As summer approaches, June brings a slight decrease to 1.6 m/s, while July and August hover around 1.7 m/s and 1.4 m/s respectively, indicating a shift towards more placid conditions. The trend continues into the fall, with wind speeds ranging between 1.5 m/s and 1.7 m/s, ultimately returning to the January average by December. This cyclical pattern underscores Slovenia's relatively serene climate, providing a backdrop of calm throughout the year.

Average January Wind Speed in

The chart displays monthly wind speed patterns in , with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.5 m/s1.81.71.81.81.61.71.41.51.71.51.5
Data source: January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Compares to Other Months

Weather in varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in , focusing on differences in temperature, rainfall, humidity, and UV levels.

January is characterized by colder temperatures, with a minimum of -16°C (4°F) and an average of -1°C (31°F), while February sees a slight warming trend, with averages rising to 2°C (37°F) and a maximum of 18°C (65°F). However, February also experiences more precipitation, totaling 79 mm (3.1 in) over 8 days, compared to January's 46 mm (1.8 in) over just 6 days. Humidity remains relatively high in both months, but February is slightly lower at 87% compared to January's 91%. For a detailed breakdown of the conditions, see weather in February.

January and March exhibit notable differences in weather patterns. While January maintains a chillier average temperature of -1°C (31°F) with a maximum of 12°C (53°F), March sees a significant warming trend, boasting an average of 5°C (41°F) and a peak of 21°C (70°F). Precipitation also varies, with January receiving 46 mm (1.8 in) over 6 days, compared to March's 70 mm (2.8 in) spread over 9 days. Additionally, January tends to be more humid at 91%, whereas March's humidity is slightly lower at 82%. For a deeper look into the specific weather conditions, you can visit weather in March.

January and April showcase a significant contrast in weather conditions. In January, temperatures can plummet to a minimum of -16°C (4°F), with an average of -1°C (31°F) and daytime highs reaching only up to 12°C (53°F). The month is also marked by high humidity at 91% and receives around 46 mm (1.8 in) of precipitation over just six days.

Conversely, April brings a more temperate climate, with minimum temperatures of -9°C (16°F) and an average of 10°C (50°F). The maximum temperatures rise considerably, peaking at 25°C (77°F). This month experiences increased precipitation, totaling 100 mm (3.9 in) over 12 days, coupled with a lower humidity of 79%. For more details, check out the weather in April.

January and May present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -16°C (4°F), with an average around -1°C (31°F) and a maximum of 12°C (53°F). The month sees about 46 mm (1.8 in) of precipitation over 6 days, and the humidity is notably high at 91%. In comparison, May brings much milder temperatures, starting from a minimum of 0°C (32°F) and reaching an average of 14°C (57°F) and a peak of 27°C (81°F). The precipitation increases significantly to 159 mm (6.3 in) spread over 19 days, accompanied by a lower humidity level of 74%. For more detailed insights into the weather patterns, you can refer to the weather in May.

In January, the weather is characterized by freezing temperatures, with a minimum of -16°C (4°F) and an average of -1°C (31°F), while maximum temperatures can reach up to 12°C (53°F). The month sees about 46 mm (1.8 in) of precipitation over six days and high humidity levels at 91%. In stark contrast, June boasts much warmer conditions, with temperatures ranging from a minimum of 4°C (40°F) to a sizzling maximum of 34°C (93°F) and an average temperature of 19°C (66°F). June experiences higher precipitation at 96 mm (3.8 in) spread over 14 days, but with significantly lower humidity at 75%. For more details, you can check the weather in June.

January and July present stark contrasts in weather. In January, temperatures can plunge as low as -16°C (4°F) with an average of -1°C (31°F) and a maximum reaching only 12°C (53°F). The month also sees significant humidity at 91% and experiences around 46 mm (1.8 in) of precipitation over 6 days. In contrast, July offers a much warmer climate, with minimum temperatures of 9°C (49°F), an average of 20°C (68°F), and highs peaking at 32°C (90°F). However, it is also more humid, with an average of 74% and total precipitation of 119 mm (4.7 in) across 16 days. For more details, check the weather in July.

January and August present a striking contrast in weather conditions. In January, temperatures can plunge as low as -16°C (4°F) and average around -1°C (31°F), while the mildest days may reach up to 12°C (53°F). The month is marked by high humidity at 91% and limited sunshine, with an average of 46 mm (1.8 in) of precipitation spread over about 6 days. In contrast, August boasts a much warmer climate, featuring minimum temperatures around 8°C (46°F) and average highs of 20°C (69°F), with peaks soaring to 35°C (95°F). The month experiences more rainfall, totaling 125 mm (4.9 in) across approximately 15 days, but humidity drops to a more comfortable 68%. For those interested in exploring the specifics, you can find more information about the weather in August.

January and September present strikingly different weather patterns. In January, temperatures range from a biting low of -16°C (4°F) to a mild high of 12°C (53°F), with an average temperature of -1°C (31°F). The month is characterized by high humidity at 91% and light precipitation occurring on about 6 days, totaling 46 mm (1.8 in). Conversely, September offers a more temperate climate, with minimum temperatures at 0°C (33°F) and maximums reaching 28°C (83°F), resulting in a pleasant average of 15°C (60°F). However, it is also the wetter month, experiencing 152 mm (6.0 in) of rainfall over 13 days and a significantly lower humidity of 74%. For more details on the variations in weather, check out weather in September.

January and October present stark contrasts in weather. In January, temperatures can plunge to a minimum of -16°C (4°F) and typically hover around -1°C (31°F), with a maximum of 12°C (53°F). The month sees about 46 mm (1.8 in) of precipitation across approximately 6 days and is characterized by high humidity at 91%. In contrast, October experiences a milder climate, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 23°C (74°F) and an average of 10°C (51°F). The month is wetter, receiving about 87 mm (3.4 in) of precipitation over 9 days, while humidity remains slightly lower at 88%. For further details, check out the weather in October.

January and November present distinctly different weather patterns. In January, temperatures can drop to a minimum of -16°C (4°F), with an average of -1°C (31°F) and a maximum reaching 12°C (53°F). The month sees around 46 mm (1.8 in) of precipitation over roughly 6 days, with humidity levels high at 91%. In contrast, November offers milder conditions, with minimum temperatures around -10°C (14°F), an average of 6°C (42°F), and maximums peaking at 18°C (65°F). Precipitation is significantly higher at 133 mm (5.2 in) spread across 11 days, while humidity remains slightly lower at 90%. For a closer look at the weather trends during this month, you can refer to the weather in November.

In January, temperatures in Domžale range from a chilly -16°C (4°F) at their lowest to a mild 12°C (53°F) at their peak, with an average of around -1°C (31°F). The month sees an average of 46 mm (1.8 in) of precipitation over about six days, while humidity levels are relatively high at 91%. In contrast, December experiences slightly lower temperatures, with a minimum of -17°C (1°F) and a maximum of 13°C (55°F), along with an average of 1°C (33°F). Precipitation in December is significantly higher, totaling 111 mm (4.4 in) and occurring across ten days. Humidity is slightly lower at 89%. For a closer look at the weather conditions during this month, you can refer to weather in December.

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Conclusion: What to Expect From January Weather in

As January grips Domžale in the heart of winter, the weather starkly contrasts with the milder months that precede and follow it. Bitterly cold temperatures dominate, often plunging well below freezing, while the ambient chill is exacerbated by a high humidity level of 91%. Though precipitation is relatively moderate, the frequent overcast skies and the potential for snow can create a stark, monochromatic landscape. This chilly month serves as a reminder of nature's stark beauty in its dormant state, making it a unique time to experience Slovenia's winter charm. For more insights into the weather patterns throughout the year, explore our section on Climate.