Last updated: August 27, 2025
January in Slovenia brings a chill as temperatures fluctuate between a maximum of 11°C (53°F) and a biting minimum of -22°C (-8°F), averaging around -2°C (28°F). With a high humidity level of 91%, the air often feels colder, enhancing the wintry atmosphere. The month records 38 mm (1.5 in) of precipitation over five days, contributing to the snow-laden landscapes that characterize this beautiful Central European country. Whether you’re exploring the serene countryside or enjoying winter activities, January showcases Slovenia’s stunning winter charm.
In Slovenia, January is marked by a sharp cold, with temperatures dipping to a minimum of -22°C (-8°F) and an average of -2°C (28°F), creating a true winter wonderland. This chill sets the stage for early winter activities, as the temperature can reach a maximum of 11°C (53°F), offering brief respites from the frigid lows. As the year progresses into February, there's a slight ascent in temperature, but the icy grip remains, showing a minimum of -16°C (3°F) and an average of just 1°C (34°F). Notably, as spring approaches in March, Slovenia begins to warm, with average temperatures climbing to 4°C (39°F), hinting at the eventual thaw and more hospitable conditions. Overall, January stands as a stark reminder of winter's chill, making it a month of dramatic temperature contrasts, setting the tone for the gradual warming that follows in the months ahead.
January in Slovenia sees a relatively modest precipitation level, with only 38 mm (1.5 in) of rain recorded over an average of just 5 days. This marks the beginning of a gradual build-up in rainfall as the year progresses; by February, precipitation increases to 64 mm (2.5 in), followed by a notable rise in March and April, where the figures soar to 66 mm (2.6 in) and 97 mm (3.8 in), respectively. As spring transitions to summer, the trend continues upward, peaking in May with a substantial 184 mm (7.3 in). Therefore, while January is relatively dry, it sets the stage for the more humid months ahead, highlighting a clear upward trajectory in precipitation as the seasons shift in Slovenia.
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.
In January, Slovenia experiences a low UV Index of 2, allowing for a relatively safe exposure with a burn time of 45 minutes—ideal for enjoying the crisp winter air. As the months progress into February and March, the UV Index gently climbs to 3 and 5, respectively, marking a transition to a moderate exposure level where caution becomes more necessary, with burn times dropping to 30 minutes. By April, the UV Index reaches 6, shifting to a high exposure category, which signals the start of sunnier days as spring unfolds. The UV index peaks in the summer months of May and June at 8 and 9, entering the very high category, reducing burn times drastically to just 15 minutes. As summer wanes into September, the UV Index decreases to 6, before easing further in the autumn months back to moderate levels. This gradual fluctuation underscores the importance of staying informed about the changing UV levels throughout the year, especially during peak sun exposure. For more information on UV Index trends, visit UV Index.
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January marks the beginning of a vibrant year in Slovenia, with 170 hours of sunshine that gradually set the stage for the months to come. As February transitions in with 210 hours of sun, the days begin to lengthen, heralding an energetic shift in the air. By March, sunshine soars to 299 hours, igniting a sense of anticipation as nature awakens from its winter slumber. The brilliance continues to crescendo through the spring, peaking in July with an impressive 414 hours, showcasing Slovenia at its sun-drenched best. As the year winds down, sunshine gradually retreats, culminating in December with 199 hours. This rhythmic cycle not only highlights Slovenia's climatic charm but also encourages exploration and adventure throughout the year, inviting visitors to bask in its diverse seasonal splendor.
In Slovenia, the likelihood of sunny weather in January is relatively low, at just 22%, signaling that this winter month is often overcast and chilly. As the seasons transition into spring, the chance of sunshine notably increases, with February almost doubling that of January at 45%. This upward trend continues into March and peaks in April and May, where the sunshine probability hovers around 52% and 31%, respectively. This pattern indicates a gradual move toward more vibrant and sun-filled days as the year progresses, making early spring a more rewarding time for those chasing sunshine compared to the stark, cloudy skies of 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.
In January, Slovenia experiences a gentle breeze, with an average wind speed of 1.6 m/s (4 mph), setting a calm tone for the start of the year. This tranquility continues into February, where the winds pick up slightly to 1.8 m/s, before stabilizing around 1.7 m/s in March. As spring approaches in April and May, winds remain relatively consistent at 1.9 m/s, providing a refreshing backdrop to the blooming landscapes. The summer months see a slight dip, with wind speeds returning to 1.6 m/s in June, eventually tapering off to 1.4 m/s by August. Interestingly, wind speeds fluctuate minimally throughout the autumn and winter months, maintaining an average of around 1.5 m/s. Overall, January's winds signal the gradual transition from quiet winter to the lively breezes of spring, reflecting Slovenia's serene yet dynamic weather patterns.
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 exhibit distinct weather patterns, with February generally being milder than January. In January, temperatures range from a frigid minimum of -22°C (-8°F) to a maximum of 11°C (53°F), with an average of -2°C (28°F). It tends to be quite humid at 91% and experiences precipitation over 5 days totaling 38 mm (1.5 in). In contrast, February sees a less severe minimum temperature of -16°C (3°F) and a higher maximum of 18°C (64°F), averaging around 1°C (34°F). This month also experiences increased precipitation of 64 mm (2.5 in) across 8 days, with humidity slightly lower at 87%. For more details, check out the weather in February.
January and March exhibit notable differences in weather conditions. In January, temperatures typically range from a chilling minimum of -22°C (-8°F) to a slightly warmer maximum of 11°C (53°F), with an average temperature around -2°C (28°F). The month sees around 38 mm (1.5 in) of precipitation over approximately 5 days, coupled with high humidity at 91%. In contrast, March brings milder conditions, with temperatures varying from a minimum of -17°C (1°F) to a much warmer maximum of 20°C (69°F) and an average of 4°C (39°F). Precipitation also increases to about 66 mm (2.6 in) over 12 days, and humidity decreases to 82%. For a more detailed look at the weather in March, visit weather in March.
January and April present a stark contrast in weather conditions. In January, temperatures can plummet to a minimum of -22°C (-8°F), with an average of -2°C (28°F) and a maximum of 11°C (53°F). The month typically features around 38 mm (1.5 in) of precipitation over just 5 days, accompanied by high humidity levels at 91%. In comparison, April experiences a much milder climate, with temperatures ranging from a minimum of -15°C (6°F) to a maximum of 26°C (78°F), and an average of 8°C (47°F). The month is wetter, receiving 97 mm (3.8 in) of precipitation over 13 days, while humidity drops to 79%. For more details on the weather in April, visit weather in April.
January and May present starkly contrasting weather conditions. In January, temperatures range from a frigid minimum of -22°C (-8°F) to a maximum of 11°C (53°F), with an average of -2°C (28°F). The month sees approximately 38 mm (1.5 in) of precipitation over just five days, coupled with high humidity at 91%. In contrast, May experiences a much milder climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 27°C (82°F), and an average of 12°C (55°F). This month is significantly wetter, with 184 mm (7.3 in) of precipitation spread over 21 days and lower humidity at 74%. To explore more about the weather patterns in May, visit weather in May.
January and June present stark contrasts in weather. In January, temperatures can plunge as low as -22°C (-8°F), with an average of -2°C (28°F) and a maximum reaching just 11°C (53°F). The month experiences about 38 mm (1.5 in) of precipitation over 5 days, coupled with high humidity levels at 91%. In contrast, June brings much milder temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 33°C (92°F), with an average of 18°C (64°F). Precipitation increases significantly, totaling 137 mm (5.4 in) spread over 17 days, and humidity decreases to a more comfortable 75%. For more detailed information, see the weather in June.
In January, the weather is distinctly cold, with temperatures ranging from a frigid -22°C (-8°F) to a maximum of 11°C (53°F) and an average of -2°C (28°F). The high humidity of 91% contributes to the chilly atmosphere, and precipitation occurs on about five days, totaling 38 mm (1.5 in). In stark contrast, July experiences a much milder climate, with temperatures varying from a minimum of 7°C (45°F) to a pleasant maximum of 31°C (88°F) and an average of 19°C (66°F). While July sees significantly more rainfall—175 mm (6.9 in) spread over 17 days—it offers a humidity level of 74%, creating a warm, summery feel. More details can be found in the weather in July.
January and August present starkly contrasting weather. In January, the temperatures plummet, with lows reaching -22°C (-8°F) and an average of -2°C (28°F), peaking at a relatively mild 11°C (53°F). The month has a high humidity of 91%, with light precipitation occurring over about five days, totaling 38 mm (1.5 in). In sharp contrast, August boasts a much warmer climate, with minimum temperatures of 6°C (43°F) and an average of 19°C (66°F), soaring to a high of 33°C (91°F). However, August is also characterized by increased precipitation of 180 mm (7.1 in) spread over 17 days, and a lower humidity level at 68%. For a more detailed look, check out the weather in August.
January weather is characterized by frigid temperatures, with lows plunging to -22°C (-8°F) and an average temperature around -2°C (28°F). The month sees limited precipitation, totaling about 38 mm (1.5 in) over five days, and a high humidity level of 91%, contributing to a cold and damp atmosphere. In contrast, September offers a more temperate climate, with temperatures ranging from a minimum of 0°C (31°F) to a pleasant maximum of 28°C (82°F) and an average of 14°C (57°F). However, it experiences significantly higher precipitation, totaling 168 mm (6.6 in) over 14 days, and lower humidity at 74%. For more detailed weather insights, you can check the weather in September.
January and October exhibit stark contrasts in weather conditions. In January, temperatures can plunge to a chilling minimum of -22°C (-8°F), while averaging -2°C (28°F) and peaking at 11°C (53°F). The month typically sees about 38 mm (1.5 in) of precipitation over approximately 5 days, accompanied by high humidity at 91%. In comparison, October experiences milder temperatures, with a minimum of -2°C (29°F), an average of 9°C (49°F), and a maximum of 22°C (71°F). Precipitation increases to 78 mm (3.1 in) over approximately 10 days, along with slightly lower humidity at 88%. For a more detailed look at October weather conditions, visit weather in October.
In January, temperatures are notably colder, with minimums plunging to -22°C (-8°F) and an average around -2°C (28°F), while November enjoys a milder climate with a minimum of -13°C (8°F) and an average of 4°C (40°F). Precipitation is also more frequent in November, totaling 106 mm (4.2 in) over 10 days, compared to January's 38 mm (1.5 in) across just 5 days. Both months exhibit high humidity levels, with January at 91% and November slightly lower at 90%. For further details on November's weather, you can check this link: weather in November.
January's weather features colder minimum temperatures, dipping to -22°C (-8°F), compared to December's milder minimum of -17°C (1°F). While both months share a maximum temperature of 11°C (53°F), January offers an average temperature of -2°C (28°F), slightly colder than December's average of -1°C (30°F). Precipitation is less frequent in January, with 38 mm (1.5 in) over 5 days, versus December's 88 mm (3.5 in) across 10 days. However, humidity levels remain quite high in both months, with January at 91% and December closely trailing at 89%. For more details, check the weather in December.
As January settles in, it brings with it a stark contrast to the milder months of the year. The biting chill can be felt with temperatures often dipping significantly, veering well below freezing. The mix of high humidity and light precipitation creates a unique atmospheric feel, making January one of the most distinctive months in terms of weather. With an average temperature hovering around the frigid mark, those venturing outside are treated to a fresh, crisp environment, making activities like snow sports more prevalent. For a complete understanding of this month’s climatic impact, explore more on our dedicated Climate page.