Last updated: August 27, 2025
January in Ljubljana, Slovenia, presents a chilly winter climate, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 12°C (54°F), resulting in an average temperature of 1°C (34°F). The month experiences 51 mm (2.0 in) of precipitation spread across 7 days, contributing to the city’s high humidity, which hovers around 88%. Visitors can expect a mix of cold days, occasional snowfall, and the beauty of Ljubljana's winter scenery, making it a unique time to explore the city's charming atmosphere.
January in Ljubljana, Slovenia, ushers in the heart of winter with temperatures that typically range from a brisk -12°C (11°F) at night to a daytime peak of 12°C (54°F). The average temperature hovers around 1°C (34°F), making it one of the colder months of the year. As winter fully settles in, you can expect chilly days and even frost-covered landscapes, with nighttime lows occasionally dipping further into the negatives. This month serves as a prelude to gradually warming temperatures in February and March, indicating that while January is cold and crisp, the days ahead will begin to hint at the return of spring warmth. With its striking winter scenery, Ljubljana in January captures the enchanting essence of a Slovenian winter, inviting visitors to explore its charm amidst the cold.
In January, Ljubljana experiences a moderate amount of precipitation, averaging 51 mm (2.0 in) over the course of about 7 days. This marks the beginning of the year with relatively lighter rainfall compared to the months ahead, where precipitation seems to increase steadily. February sees a significant leap to 88 mm (3.5 in) over 9 days, and this trend continues, culminating in May—the wettest month—where rain totals soar to 166 mm (6.5 in) on 19 days. As spring gives way to summer, July and August maintain high levels of rainfall, averaging around 98 mm (3.9 in) and 100 mm (3.9 in), respectively. Ultimately, the data reveals that while January may start the year with less rainfall, the subsequent months build up considerably, punctuating a year that is rich in liquid sunshine across Slovenia.
In January, Ljubljana experiences a notable humidity level of 88%, making it one of the more humid months of the year. This high moisture content contributes to the chilly winter atmosphere. As the seasons transition into February, humidity slightly declines to 82%, hinting at the gradual arrival of spring. By March and April, levels stabilize at 73%, suggesting a shift towards a fresher climate. The trend continues into the warmer months, with humidity decreasing further to 63% by July. The peak summer month of August sees a significant drop to 51%, providing a pleasant respite from the usual dampness. However, as autumn approaches, moisture begins to creep back, with levels rising again in October to 83% and peaking once more in the late fall with 89% humidity in November, before returning to 88% in December. This cyclical pattern highlights how Ljubljana's humidity shifts dramatically across the seasons, reflecting the region's diverse climate.
In January, Ljubljana experiences a low UV Index of 2, meaning sun exposure is minimal, with a burn time of approximately 45 minutes. As the month progresses into February, the UV Index rises to 3—still moderate but signaling the need for some sun protection with a reduced burn time of 30 minutes. This gradual increase continues through early spring, with March seeing a UV Index of 5 and April reaching 6, where more vigilant sun safety measures become necessary. As summer approaches, the UV Index peaks in June and July at a striking 9, categorized as very high, demanding extreme caution and limiting burn time to just 15 minutes. By August, there’s a slight dip to 8, followed by a gradual decrease through the fall months until the cycle returns to lower indices in December. This data highlights the importance of adjusting sun protection strategies throughout the year. For more detailed information, visit Ljubljana UV Index.
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In January, Ljubljana experiences 178 hours of sunshine, marking the start of the year with a gentle embrace of light. As the calendar progresses into February, the days grow brighter, accumulating 220 hours of sunshine, hinting at the promise of spring. March brings a delightful leap to 310 hours, further igniting the anticipation for warmer days ahead. The trend continues upward in April and May, with sunlit hours peaking at 336 and 361 respectively, as the city bursts into life with vibrant blooms. June and July offer the pinnacle of sunshine, reaching 408 and 427 hours, making these months perfect for outdoor adventures. As summer wanes, August still boasts a generous 393 hours, while September starts to transition with 318 hours. The gentle decline in October and November, with 286 and 212 hours, serves as a prelude to the peaceful, albeit dimmer, days of winter. By December, sunshine dwindles to 209 hours, wrapping up the year in a reflective hush as Ljubljana prepares for the cycle to begin anew. Throughout the year, the city's rhythm is beautifully illuminated by its seasonal sunshine, inviting both residents and visitors to bask in its glow.
In Ljubljana, Slovenia, the promise of sunny weather in January hovers at a modest 23%, signaling the depth of winter's grip on the city. As the year unfolds, this figure gradually increases, showcasing a notable trend towards sunnier days: February sees a jump to 37%, followed by March with an encouraging 58%. This upward trajectory continues into spring, where April and May display a slight dip but still maintain around one-third likelihood of sunshine. By the time summer arrives, the chances stabilize in the 40% to 53% range, highlighting a clear seasonal shift towards brighter days. As autumn sets in, the likelihood fluctuates but remains relatively low, with the trend of increasing sun re-emerging as the cold months transition into warmer seasons. Overall, while January may not promise abundant sun, the gradual climb in sunlight throughout the early months paints a hopeful picture for the year ahead.
As January unfolds in Ljubljana, daylight stretches to a modest 9 hours, gradually lengthening as the month progresses. This trend continues into February, where the city basks in 10 hours of sunlight, signaling the early stirrings of spring. By March, the days extend to 11 hours, enhancing outdoor activities and the vibrant life in the city. As we move into April, daylight blossoms to 13 hours, followed by 14 hours in May, creating the perfect ambiance for leisurely strolls in the picturesque parks. The summer months of June and July reach their peak with 15 hours of daylight, inviting residents and visitors alike to embrace the warmth and joy of the season. As August transitions to 14 hours, the slow shift towards autumn begins, leading to September’s 12 hours. The descent continues into October and November, where daylight dips back to 10 hours and 9 hours, rounding off the year with 8 hours in December. This rhythmic cycle of daylight not only defines the seasons but also enriches the cultural fabric of Ljubljana throughout the year.
In Ljubljana, Slovenia, the January wind presents a gentle start to the year, with an average speed of 2.0 m/s (5 mph). This tranquil atmosphere continues into March, showing no change in windspeed, but there’s a slight uptick to 2.5 m/s (6 mph) in February that adds a briskness to the late winter air. As spring arrives, the winds remain consistent, hovering around 2.1 to 2.2 m/s, creating a mild backdrop for the blossoming city. However, summer offers a noticeable dip, with average speeds declining to around 1.6 to 1.8 m/s, making the warm months feel even more languid and pleasant. Moving into autumn, the winds pick up slightly again in October at 2.2 m/s, but drop off towards the winter months, ending the year with 1.6 m/s in December. Overall, Ljubljana's wind pattern reveals a subtle rhythm, characterized by tranquil winter breezes that transition into gentler currents as the seasons progress.
Weather in Ljubljana varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Ljubljana, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather is characterized by chilly temperatures, with a minimum of -12°C (11°F) and an average of 1°C (34°F), peaking at 12°C (54°F). The month sees around 51 mm (2.0 in) of precipitation over approximately 7 days, accompanied by high humidity levels at 88%. In contrast, February brings slightly milder conditions with a minimum of -11°C (13°F) and an average temperature of 4°C (39°F), reaching up to 19°C (67°F) at its warmest. However, February experiences more precipitation, totaling 88 mm (3.5 in) over about 9 days, though humidity decreases to 82%. For more details, check out Ljubljana weather in February.
January and March present a notable contrast in weather conditions. In January, temperatures can drop as low as -12°C (11°F), with an average hovering around 1°C (34°F) and peaks reaching only up to 12°C (54°F). The month experiences 51 mm (2.0 in) of precipitation over approximately 7 days, while humidity is quite high at 88%. In contrast, March offers a warmer embrace with minimum temperatures around -14°C (8°F), an average climb to 6°C (43°F), and a maximum that can soar to 22°C (71°F). Precipitation increases to 71 mm (2.8 in) across about 10 days, but the humidity decreases significantly to 73%. For more details on the weather during this transitional month, check Ljubljana weather in March.
January and April present contrasting weather conditions. In January, temperatures typically range from a chilly -12°C (11°F) to a mild 12°C (54°F), with an average of around 1°C (34°F). The month sees significant precipitation, totaling 51 mm (2.0 in) over approximately 7 days, and high humidity at 88%. In contrast, April experiences a much larger temperature range, with lows around -11°C (13°F) and highs reaching 26°C (79°F), resulting in a warmer average of 10°C (51°F). The precipitation also increases to 94 mm (3.7 in) over about 12 days, but humidity drops to a more comfortable 73%. For more specific details on April weather, you can check out Ljubljana weather in April.
January and May in Ljubljana present stark contrasts in weather. In January, temperatures range from a chilling minimum of -12°C (11°F) to a mild maximum of 12°C (54°F), with an average of around 1°C (34°F). The month typically sees 51 mm (2.0 in) of precipitation over about 7 days and a high humidity level of 88%, creating a damp, cold atmosphere.
In contrast, May ushers in more welcoming weather, with temperatures rising significantly from a minimum of 1°C (34°F) to a maximum of 28°C (82°F), averaging around 14°C (58°F). However, this month is also marked by increased precipitation, totaling 166 mm (6.5 in) over 19 days, and a decrease in humidity to 70%. For a closer look at what to expect, you can check Ljubljana weather in May.
January in Ljubljana brings a stark contrast to June, with temperatures ranging from a chilly -12°C (11°F) at night to a milder peak of 12°C (54°F) during the day. The average temperature settles at around 1°C (34°F), accompanied by high humidity at 88%, creating a frosty atmosphere with about 51 mm (2.0 in) of precipitation over roughly 7 days. In contrast, June showcases a considerable warm-up, with nighttime temperatures not falling below 6°C (43°F) and daytime highs soaring to 34°C (94°F), leading to an average temperature of 20°C (68°F). Although June sees more days of rainfall, totaling 84 mm (3.3 in) over 12 days, the overall climate is significantly more pleasant with a drop in humidity to 69%. For more details on what to expect in June, check out Ljubljana weather in June.
In January, the weather in Ljubljana is characterized by cold temperatures, with minimums dropping as low as -12°C (11°F) and an average of just 1°C (34°F). The month sees frequent precipitation, with about 51 mm (2.0 in) over 7 days, accompanied by high humidity levels at 88%.
In stark contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 10°C (51°F) to highs of 34°C (93°F) and an average of 21°C (70°F). Rainfall increases during this month, totaling around 98 mm (3.9 in) over 13 days, but the humidity decreases significantly to 63%. For more detailed information, you can check Ljubljana weather in July.
January and August in Ljubljana present stark contrasts in weather. In January, temperatures range from a chilly -12°C (11°F) at night to a mild 12°C (54°F) during the day, with an average of around 1°C (34°F). The month sees about 51 mm (2.0 in) of precipitation over 7 days, coupled with high humidity levels at 88%, making it feel quite cold and damp. In contrast, August boasts much warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 35°C (96°F), and an average of 21°C (70°F). Although it receives more precipitation at 100 mm (3.9 in) over 12 days, the humidity is significantly lower at 51%, contributing to a more comfortable and summery atmosphere. For more detailed insights, check out Ljubljana weather in August.
January and September present stark contrasts in weather. In January, temperatures plummet, ranging from a minimum of -12°C (11°F) to a maximum of 12°C (54°F), with an average temperature of just 1°C (34°F). The month is characterized by high humidity at 88%, and precipitation occurs over 7 days, accumulating to 51 mm (2.0 in). In contrast, September brings a much milder climate, with temperatures varying from a minimum of 2°C (35°F) to a maximum of 29°C (85°F) and an average of 16°C (61°F). This month experiences significantly more rainfall, totaling 159 mm (6.3 in) and falling over 12 days. The humidity also drops to 64%, making September a more comfortable month overall. For more detailed weather information, check out Ljubljana weather in September.
January and October exhibit stark contrasts in weather. January is characterized by colder temperatures, with a minimum of -12°C (11°F) and an average of just 1°C (34°F). In contrast, October enjoys much milder conditions, where temperatures range from a minimum of 0°C (31°F) to a maximum of 24°C (76°F), averaging around 11°C (52°F). While January sees about 51 mm (2.0 in) of precipitation over 7 days, October experiences higher rainfall at 98 mm (3.9 in) across 9 days, accompanied by slightly lower humidity at 83%. For more specific weather details, check out Ljubljana weather in October.
When comparing the weather in January to that of November, notable differences emerge in both temperature and precipitation patterns. January experiences colder temperatures, with a minimum of -12°C (11°F) and an average of just 1°C (34°F), while November offers milder conditions, where temperatures range from a minimum of -6°C (22°F) to a more comfortable average of 6°C (44°F). Additionally, November is characterized by significantly higher precipitation at 131 mm (5.2 in) over approximately 11 days, compared to January’s 51 mm (2.0 in) over 7 days. The humidity levels remain fairly similar, with January at 88% and November slightly higher at 89%. For more insights on November weather, you can check out Ljubljana weather in November.
In comparing the weather of January and December, we see some notable differences. December tends to be slightly colder overall, with average temperatures ranging from a minimum of -15°C (6°F) to a maximum of 14°C (58°F), while January's temperatures have a slightly milder range, with minimums of -12°C (11°F) and maximums reaching 12°C (54°F). Additionally, December experiences significantly more precipitation, totaling 121 mm (4.8 in) over 10 days compared to January's 51 mm (2.0 in) over 7 days. Both months have a consistent humidity level of 88%, maintaining that characteristic chill in the air. For more detailed insights, you can check Ljubljana weather in December.
January in Ljubljana presents a notably colder and damper atmosphere compared to the milder months of the year. With temperatures frequently dipping to their lowest, the chill in the air often contrasts sharply with the spring's warmth that follows. This month also brings increased humidity, enhancing the brisk feel while the relatively low precipitation days highlight a unique winter charm. As you explore the city's winter beauty, you can delve deeper into the statistics and trends that define its climate year-round by visiting Ljubljana Climate.