January Weather in , Slovenia

Last updated: August 27, 2025

January in Slovenia presents a captivating blend of winter's chill and occasional warmth, with temperatures ranging from a frigid minimum of -15°C (5°F) to a more temperate maximum of 14°C (58°F). The month averages around 1°C (34°F), creating a striking contrast in weather conditions. With 31 mm (1.2 in) of precipitation over 6 days, residents and visitors alike can expect a mix of snow and rain, while the 90% humidity adds to the biting cold, enveloping the landscape in a frosty embrace. This winter month is perfect for those eager to experience Slovenia's serene, snow-covered beauty.

January Temperature in

In January, Slovenia experiences a crisp winter chill, with temperatures ranging from a frigid -15°C (5°F) at their lowest to a mild 14°C (58°F) at peak. The average temperature hovers around 1°C (34°F), setting the stage for snowy landscapes and a serene atmosphere. As the month progresses into February, a gradual warming trend emerges, with lows of -12°C (11°F) and a noticeable rise in afternoon highs up to 20°C (68°F). This transition continues into March, where the mercury can dip to -18°C (-1°F), yet the average climbs higher, reaching 7°C (44°F). A peak in daytime warmth of 23°C (73°F) hints at the approaching spring. This upward trend persists into April and May, where not only do average temperatures rise significantly, but the contrast between morning and afternoon highs grows, from 12°C (53°F) to a balmy 16°C (60°F). The transformations from January through May illustrate Slovenia's beautiful seasonal shift, inviting visitors to witness the gradual awakening of nature as winter cedes to spring.

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).
JanFebMarAprMayJunJulAugSepOctNovDec333944536070727262544437
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

In January, Slovenia experiences relatively low precipitation, averaging 31 mm (1.2 in) over just 6 rainy days, marking it as one of the driest months of the year. This sets the stage for a gradual increase in rainfall as winter transitions to spring, with February bringing 53 mm (2.1 in) across 8 days. The pattern of increasing precipitation continues through spring, highlighted by a significant leap to 60 mm (2.4 in) in April. By May, the wet season truly begins, with precipitation soaring to 129 mm (5.1 in) over 17 days, making it the wettest month in the data set. This steady upward trend indicates a shift from the dry winter months toward the more abundant rainfall typical of late spring and summer in Slovenia.

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.
JanFebMarAprMayJunJulAugSepOctNovDec31534660129859588125668167
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in

In January, Slovenia experiences a notable humidity level of 90%, setting the stage for a winter that feels both crisp and damp. As the year progresses, humidity gradually decreases, reaching 84% in February and 78% in March, hinting at the gradual transition towards spring. The trend continues, with humidity dropping to 73% by April and stabilizing around 71% in May. The summer months bring a further decline, with July and August witnessing lower humidity levels of 70% and 60%, respectively, offering a welcome relief. However, as autumn approaches, the humidity begins to rise again, climbing back to 84% in October and spiking to 89% in November and December, reflecting the cycle of the seasons in this beautiful region. Overall, January acts as the peak of humidity, but the fluctuating trends throughout the year illustrate Slovenia's dynamic climate.

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.
JanFebMarAprMayJunJulAugSepOctNovDec90%84%78%73%71%73%70%60%65%84%89%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 relatively low UV Index of 2, with a burn time of 45 minutes—a reminder that while protection is still advisable, the sun's rays are less intense during winter. As the month transitions into February, the UV Index rises to 3, indicating a moderate exposure category, where burn time decreases to 30 minutes. This gradual uptick continues into March with a UV index of 5, maintaining a moderate level but reminding outdoor enthusiasts to be cautious. Notably, April marks a significant shift as the UV Index climbs to 6, entering the high exposure category, and further intensifies through the spring and summer months. By May, it peaks at 8, indicating very high exposure, and remains at this elevated level during the sunniest months of June and July. As summer wanes, the UV Index decreases, reaching 6 in September, before tapering back to moderate levels in the fall and winter months. Staying informed about the UV Index is essential for healthy sun habits throughout the year; discover more UV Index insights for Slovenia.

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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
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 January, Slovenia basks in 163 hours of sunshine, a modest start to the year that hints at the brighter days ahead. As winter loosens its grip, the sky opens up, ushering in February with 222 hours of sunlight, signaling the gradual return of warmth. This upward trend continues as March experiences a boost to 299 hours, with spring's imminent arrival becoming more palpable. By April, the sun shines even more generously, providing 332 hours, while May dazzles with a full 366 hours, creating the perfect backdrop for the blooming landscape. The sunshine peaks in July at 423 hours, embodying the essence of summer in all its glory. Despite a slight dip in August and a tapering off in the months that follow, the overall trajectory of sunshine in Slovenia exhibits a captivating journey from the quiet light of winter to the vibrant embrace of summer, making each sunny hour a cherished reminder of nature's cycles.

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.
JanFebMarAprMayJunJulAugSepOctNovDec163h222h299h332h366h403h423h389h322h285h201h201h
Data source: January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in During January

In January, Slovenia experiences a modest 28% chance of sunny weather, setting the stage for a month where winter often blankets the landscape. This figure marks the lowest likelihood of sunshine compared to the subsequent months; by February, the chance doubles to 50%, signaling a gradual increase as spring approaches. The trend continues into March and April, where sunny probabilities rise to 55% and 40%, respectively, showcasing a welcome transition toward brighter days. While January may feel particularly gray, the promise of more sunshine is just around the corner, making it an ideal time for cozy indoor activities before the sun's return.

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.
JanFebMarAprMayJunJulAugSepOctNovDec28%50%55%40%38%55%48%45%52%42%26%32%
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 year with approximately 9 hours of daylight, marking one of the shortest days as winter grips the landscape. However, as the month transitions to February, daylight gradually increases to 10 hours, hinting at the arrival of spring. This upward trend continues into March with 11 hours, providing a glimpse of longer days ahead. By the time April arrives, daylight extends to 13 hours, and May blooms brightly with 15 hours of sunshine, a peak that remains consistent through June and July. As summer fades, August sees a slight reduction in daylight to 14 hours, and the gradual retreat continues into September with 12 hours. By October, daylight shrinks back to 10 hours, before settling at 9 hours again in November and further diminishing to 8 hours in December. This cyclical pattern highlights Slovenia's vibrant seasonal changes, emphasizing the growing light of spring and summer, followed by the cozy embrace of winter's shorter days.

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 2m10h 19m11h 56m13h 35m15h15h 43m15h 20m14h 5m12h 29m10h 51m9h 24m8h 38m
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 average wind speed of 2.5 m/s (6 mph), setting the tone for the early winter months. As the year progresses, the wind speeds see slight fluctuations, peaking at 2.8 m/s (6 mph) in April, just as spring begins to unfold. Interestingly, states of calm settle in during the summer months, with August and September recording the lowest speeds at 1.8 m/s (4 mph), inviting outdoor leisure activities under the sun. As autumn arrives, the wind gains momentum again, with speeds returning to 2.5 m/s (6 mph) typical of January. Overall, this pattern reveals a rhythmic dance of breezes across the seasons, from the crisp winds of winter to the tranquil stillness of summer, only to crescendo once more in the fall.

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.
JanFebMarAprMayJunJulAugSepOctNovDec2.5 m/s2.62.52.82.72.12.41.81.82.51.92.1
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 and February present distinct contrasts in weather patterns. January typically experiences colder temperatures, with a minimum of -15°C (5°F) and an average of 1°C (34°F). While it sees about 31 mm (1.2 in) of precipitation over six days, the humidity remains high at 90%. In contrast, February is slightly warmer, boasting a minimum of -12°C (11°F) and an average of 4°C (39°F), with maximum temperatures reaching up to 20°C (68°F). This month also has increased precipitation at 53 mm (2.1 in) over eight days, but the humidity decreases to 84%. For a more detailed look at weather in February, check the provided link.

January typically presents colder conditions compared to March, with temperatures ranging from a chilly -15°C (5°F) to a milder maximum of 14°C (58°F). In contrast, March experiences more variability with temperatures dipping to -18°C (-1°F) but peaking at a pleasant 23°C (73°F). Furthermore, January sees around 31 mm (1.2 in) of precipitation over 6 days, while March has slightly higher precipitation at 46 mm (1.8 in) across 9 days, resulting in lower humidity in March (78%) compared to January’s high of 90%. For a more detailed look at March weather, you can visit weather in March.

January and April present contrasting weather patterns, highlighting the transition from winter to spring. In January, temperatures range significantly, with lows dipping to -15°C (5°F) and an average temperature around 1°C (34°F), while precipitation occurs over about six days, accumulating to 31 mm (1.2 in) with high humidity levels at 90%. In contrast, April witnesses a notable warming trend, featuring minimum temperatures of -5°C (24°F) and average highs reaching 12°C (53°F), with peaks up to 28°C (82°F). Additionally, April experiences more precipitation, totaling 60 mm (2.4 in) over ten days, though humidity lessens to 73%. To learn more about the weather in April, visit weather in April.

In January, the weather is characterized by cold temperatures, with a minimum of -15°C (5°F) and an average of just 1°C (34°F), capped at a maximum of 14°C (58°F). This month sees relatively low precipitation, totaling 31 mm (1.2 in) over about 6 days, but high humidity levels at 90%. In contrast, May experiences a significant warming trend, with temperatures ranging from a minimum of 3°C (37°F) to an average of 16°C (60°F), peaking at a remarkable 32°C (89°F). Precipitation increases sharply to 129 mm (5.1 in) across 17 days, and humidity drops to 71%, making the weather feel much more comfortable. For more details, you can explore the weather in May.

In January, temperatures in Gorišnica can be quite frigid, with a minimum of -15°C (5°F) and an average of around 1°C (34°F). The month typically experiences 31 mm (1.2 in) of precipitation over six days and a high humidity level of 90%, making for a chilly and damp environment. In contrast, June brings a dramatic shift in weather, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 36°C (97°F). The average temperature jumps to a pleasant 21°C (70°F), and while June sees increased precipitation at 85 mm (3.3 in) across 13 days, the humidity drops to a more comfortable 73%. For a more detailed look at the weather patterns during this month, you can visit weather in June.

January and July present strikingly different weather conditions. In January, temperatures often plunge to a minimum of -15°C (5°F) and barely reach an average of 1°C (34°F), making it one of the coldest months of the year. The humidity is notably high at 90%, contributing to a chilly atmosphere, with around 31 mm (1.2 in) of precipitation spread over 6 days. In contrast, July brings warmth and vibrancy, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 36°C (97°F) and an average of 22°C (72°F). Although July is wetter, with 95 mm (3.7 in) of precipitation occurring over 12 days, the lower humidity of 70% enhances the summer experience. For more details, you can check the weather in July.

In January, temperatures can dip as low as -15°C (5°F), with an average of around 1°C (34°F) and a high of 14°C (58°F). The month sees an average of 31 mm (1.2 in) of precipitation over about 6 days, combined with a high humidity level of 90%. In contrast, August brings a much warmer climate, where temperatures range from a minimum of 9°C (48°F) to a staggering maximum of 37°C (99°F), with an average temperature of 22°C (72°F). While August is generally wetter, with 88 mm (3.5 in) of rainfall spread over 11 days, it also enjoys a lower humidity level of 60%. For more details, you can explore weather in August.

January and September exhibit stark contrasts in weather patterns. January is characterized by cold temperatures, with minimums dropping to -15°C (5°F) and an average of only 1°C (34°F), while precipitation levels are relatively low, averaging 31 mm (1.2 in) over about 6 days and high humidity at 90%. In contrast, September experiences a much milder climate, with minimums around 3°C (38°F) and an average temperature of 17°C (62°F), reaching highs of 33°C (91°F). However, it also sees increased precipitation of 125 mm (4.9 in) over 11 days and lower humidity at 65%. This shift from the frigid chill of January to the warmth of September highlights the seasonal transitions, making weather in September a vibrant time for outdoor activities.

In January, the weather is notably colder, with temperatures ranging from a chilling minimum of -15°C (5°F) to a maximum of 14°C (58°F) and an average of just 1°C (34°F). The month experiences 31 mm (1.2 in) of precipitation over approximately 6 days, accompanied by high humidity levels of 90%. In contrast, October brings a more temperate climate, with temperatures fluctuating between a minimum of 0°C (32°F) and a maximum of 26°C (79°F), averaging around 12°C (54°F). The month sees increased precipitation at 66 mm (2.6 in) over about 9 days, and slightly lower humidity at 84%. For more details, check out the weather in October.

In January, the weather is considerably colder, with temperatures ranging from a minimum of -15°C (5°F) to a maximum of 14°C (58°F) and an average of just 1°C (34°F). The month also sees approximately 31 mm (1.2 in) of precipitation over about 6 days, making the air feel quite humid at 90%. In contrast, November experiences milder temperatures, with a minimum of -5°C (23°F), an average of 7°C (44°F), and a maximum reaching 20°C (68°F). This month also has higher precipitation levels of 81 mm (3.2 in) spread over 10 days, accompanied by a similar humidity level of 89%. For more specific insights, you can check the weather in November.

January generally experiences colder temperatures compared to December, with minimums dipping as low as -15°C (5°F) and an average of 1°C (34°F), while December sees milder conditions with minimums around -7°C (20°F) and an average of 3°C (37°F). Additionally, January tends to be drier, with only 31 mm (1.2 in) of precipitation over 6 days, in contrast to December's higher rainfall of 67 mm (2.7 in) across 8 days. Humidity remains relatively constant, hovering around 90% in January and 89% in December. For a more detailed look at December's weather, visit weather in December.

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Conclusion: What to Expect From January Weather in

January brings a unique chill to Gorišnica, with its icy grasp setting it apart from the milder months of the year. As temperatures hover around 1°C, this month is characterized by significantly lower averages compared to the more temperate spring and autumn seasons. The nippy air is often accompanied by increased humidity levels of 90%, creating a sharp contrast to the drier summer months. While precipitation is modest at 31 mm over a handful of days, the winter landscape transforms into a serene and frosty setting, inviting a different kind of beauty. For more detailed insights into the climate variations throughout the year, visit Climate.