Last updated: August 27, 2025
January in Cluj-Napoca, Romania presents a chilly landscape where temperatures oscillate between a brisk -21°C (-6°F) at night and a mild 12°C (53°F) during the day. The month boasts an average temperature of -3°C (28°F), enveloped in a blanket of high humidity at 93%. Rainfall is moderate, with a total of 34 mm (1.3 in) spread over 9 days, contributing to the city's wintry charm. Whether you're strolling through the historical streets or sipping hot beverages in cozy cafes, January offers a unique experience defined by its cold, yet captivating atmosphere.
In Cluj-Napoca, Romania, January brings a chilling embrace with temperatures that can plummet as low as -21°C (-6°F), creating a stark contrast to the milder, more temperate days that follow in February. However, as the month progresses, the average temperature hovers around -3°C (28°F), allowing for fleeting moments of mildness, potentially reaching a max of 12°C (53°F). This month serves as the coldest point in the year, setting a tone of frosty beauty that gives way to the gradual warming of spring. By February, temperatures start to rise slightly, indicating a shift from the deep freeze. The weather paints a vivid picture of seasonal transition, where the cold of winter slowly yields to the promise of warmer days ahead.
In Cluj-Napoca, Romania, January marks the beginning of the year with a modest precipitation total of 34 mm (1.3 inches), spread across 9 rainy days. This sets a relatively dry tone compared to the months that follow, where a gradual increase in rainfall is observed, particularly in May, when precipitation peaks at 115 mm (4.5 inches) and rainfall days soar to 19. The trend indicates that while wintertime sees light showers, the arrival of spring intensifies precipitation, making the subsequent months significantly wetter. By the summer, even though July experiences a slight drop in rainfall to 100 mm over 16 days, the overall pattern remains consistent, with summer months still holding robust averages of rainfall. This dynamic journey through the year's rain showcases Cluj-Napoca's distinct seasonal shifts, emphasizing the importance of preparedness for wetter days ahead as winter gives way to spring's blooms.
In January, Cluj-Napoca experiences a notable humidity level of 93%, setting the stage for a winter characterized by a damp chill. As the month transitions into February, humidity slightly decreases to 88%, but this trend of high moisture in the air continues throughout the winter months, reaching 91% in November and maintaining a consistent 92% in December. The spring months bring a gradual decline, with humidity dropping to 79% in April and further down to 71% by May and June. The summer sees the driest conditions, with humidity levels dipping to 55% in August. This pattern highlights a significant seasonal shift, where winter's dampness gives way to a warmer and noticeably less humid summer, before humidity levels rise again in autumn.
In January, Cluj-Napoca experiences a UV Index of 2, indicating a low exposure category with a burn time of 45 minutes. This trend of lower UV levels is characteristic of winter months, with the index gradually increasing as spring approaches. By February, the UV Index rises to 3 and remains in the moderate range, leading to shorter sun exposure times. March brings an even higher index of 5, signaling that residents and visitors should remain cautious with moderate sun protection. The arrival of April sees this upward trend peak, hitting 6, while May and June escalate to a very high UV Index of 8 and 9, respectively, dramatically reducing burn times to just 15 minutes. As summer wanes into August and September, the index slightly decreases, yet burn times remain critically low. Overall, January marks the beginning of a seasonal shift, with increasing UV levels as the year progresses, reminding us to stay informed about sun safety. For more detailed information, visit Cluj-Napoca UV Index.
UV Risk Categories
In Cluj-Napoca, Romania, January ushers in the year with a modest 159 hours of sunlight, setting the stage for a gradual ascent in brightness. As winter gives way to spring, February witnesses a remarkable increase to 214 hours, hinting at the lengthening days ahead. By March, the city basks in a delightful 290 hours of sunshine, as nature awakens. The trend continues, peaking in the vibrant summer months, with July showcasing a dazzling 426 hours—the sun's zenith in this charming city. Despite a slight decline in the following months, the overall trajectory demonstrates a compelling seasonal rhythm, culminating in a cozy December with 179 hours, reminding residents of the dawn's return after the long winter nights.
In Cluj-Napoca, Romania, the likelihood of sunny weather in January is relatively low, standing at just 20%. This trend continues into December, which experiences an even lower chance at 16%. As winter gives way to spring, the chances of sunshine begin to increase, climbing to 35% in February and gradually rising to 42% by March. Interestingly, April sees a dip back to 37%, but the overall trajectory becomes noticeably brighter as the year progresses. By the time June rolls around, residents can expect sunny days roughly 50% of the time, highlighting a significant shift towards more favorable weather in the subsequent months. Thus, while January might be gray, the promise of sunnier days is just around the corner.
In Cluj-Napoca, Romania, January marks the beginning of the year with 8 hours of daylight, a stark reminder of winter's grip. As the calendar flips to February, daylight increases to 10 hours, hinting at the gradual transition towards spring. March welcomes a further rise to 11 hours, and by April, the sun graces the city with 13 hours of light, embodying the vibrant awakening of nature. The transition becomes even more pronounced in May and throughout the summer months, when 15 hours of daylight invite longer days filled with activity and warmth. As summer wanes, daylight begins to gently decline; August sees 14 hours, followed by September's 12 hours. The descent continues into October with 10 hours, November's 9 hours, and back to 8 hours in December, closing off the year much as it began—under a blanket of shorter days. This rhythmic dance of daylight beautifully reflects the seasons in Cluj-Napoca, shaping both the landscape and the lifestyle of its residents.
In Cluj-Napoca, January ushers in a gentle breeze with an average wind speed of 2.2 m/s (5 mph), a figure that remains consistent with the wind patterns throughout the year. Interestingly, this month marks the transition from the slightly brisk winds of December to the more variable gusts that emerge in the spring months. February sees a slight uptick, reaching 2.5 m/s, while March hovers closely behind at 2.3 m/s. As winter gives way to spring, the winds remain relatively calm, settling back to 2.2 m/s in April. Overall, the trend shows that winter and early spring months maintain a steady, moderate breeze, offering a refreshing feel without overwhelming bluster, crafting an ideal atmosphere for residents and visitors to enjoy the charm of this vibrant city.
Weather in Cluj-Napoca varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Cluj-Napoca, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February present a noticeable shift in weather conditions. January typically sees colder temperatures, with a minimum of -21°C (-6°F) and an average of -3°C (28°F), while February warms up slightly, registering a minimum of -14°C (8°F) and an average of 1°C (34°F). Precipitation is more pronounced in February, amounting to 49 mm (1.9 in) over 11 days compared to January's 34 mm (1.3 in) over 9 days. The humidity levels begin to decrease slightly from 93% in January to 88% in February. For more detailed information on February's weather in Cluj-Napoca, you can check Cluj-Napoca weather in February.
In January, the weather in Cluj-Napoca is characterized by colder temperatures, with an average of -3°C (28°F) and a maximum reach of only 12°C (53°F). Precipitation is relatively low at 34 mm (1.3 in) over 9 days, accompanied by high humidity at 93%. In contrast, March brings a noticeable warming trend, with an average temperature of 4°C (39°F) and highs soaring to 22°C (72°F). However, March also sees increased precipitation, totaling 56 mm (2.2 in) over 11 days, but with slightly lower humidity at 86%. The transition from January to March highlights a significant shift towards milder temperatures and more variability in weather patterns. For a more detailed look at the conditions in March, you can visit Cluj-Napoca weather in March.
In January, Cluj-Napoca experiences frigid temperatures, with minimums plunging to -21°C (-6°F) and an average of -3°C (28°F), while highs reach only 12°C (53°F). The month sees significant snow and cold weather, with 34 mm (1.3 in) of precipitation over about 9 days, and humidity remains high at 93%. In stark contrast, April brings a noticeable warming trend, featuring minimum temperatures of -7°C (20°F) and an average of 9°C (48°F), soaring to a comfortable maximum of 26°C (80°F). Although April experiences slightly more precipitation at 52 mm (2.0 in) over 12 days, the humidity drops to a more manageable 79%, heralding the arrival of spring. For more details, you can check Cluj-Napoca weather in April.
In January, the weather in Cluj-Napoca is characterized by cold temperatures, with average lows around -3°C (28°F) and maximums reaching only 12°C (53°F). With high humidity levels at 93%, the month sees about 34 mm (1.3 in) of precipitation over approximately 9 days, creating a chilly and damp atmosphere. In contrast, May brings a significant warmth, with average temperatures rising to 14°C (57°F) and maximums soaring up to 27°C (81°F). However, May is also wetter, with a total precipitation of 115 mm (4.5 in) spread across 19 days, though the humidity drops to a more comfortable 71%. For more detailed information, you can visit Cluj-Napoca weather in May.
January and June in Cluj-Napoca present strikingly different weather patterns. In January, temperatures plummet to a minimum of -21°C (-6°F) and hover around an average of -3°C (28°F), with a maximum of 12°C (53°F). The month sees significant precipitation of 34 mm (1.3 in) over about 9 days, contributing to a notably high humidity level of 93%. In contrast, June brings a warm respite, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 32°C (90°F), and an average of 18°C (65°F). This month experiences much higher rainfall at 110 mm (4.3 in) across 18 days, though humidity drops to a more comfortable 71%. For a closer look at what to expect during the warmer months, you can check Cluj-Napoca weather in June.
In January, Cluj-Napoca experiences harsh winter conditions, with temperatures ranging from a biting minimum of -21°C (-6°F) to a maximum of 12°C (53°F), and an average temperature of -3°C (28°F). The city sees about 34 mm (1.3 in) of precipitation over 9 days, with high humidity levels at 93%, making the cold feel even more intense.
In contrast, July brings a significant shift in weather, with temperatures soaring to a minimum of 7°C (45°F) and reaching a maximum of 32°C (89°F), averaging around 19°C (67°F). The month is much wetter, with 100 mm (3.9 in) of precipitation over 16 days, but the humidity drops to a more comfortable 64%. For a detailed look at what to expect during this summer month, check out Cluj-Napoca weather in July.
The weather in January is characterized by much colder temperatures, with minimums plunging to -21°C (-6°F) and an average temperature of -3°C (28°F). In contrast, August brings a warm climate, featuring an average temperature of 20°C (68°F) and maximums soaring up to 35°C (95°F). Precipitation is also notable in both months, but while January experiences 34 mm (1.3 in) over 9 days, August sees a higher total of 74 mm (2.9 in) across 11 days. Additionally, January's humidity sits high at 93%, compared to a much drier 55% in August. For more information on August weather in Cluj-Napoca, you can visit Cluj-Napoca weather in August.
January and September present vastly different weather experiences. In January, temperatures plunge to a minimum of -21°C (-6°F), with an average temperature around -3°C (28°F) and a maximum of 12°C (53°F). The month sees high humidity levels at 93% and about 34 mm (1.3 in) of precipitation over 9 days. In stark contrast, September enjoys milder temperatures, with a minimum of -1°C (31°F), an average of 15°C (59°F), and a maximum reaching 29°C (85°F). This month also brings more precipitation, totaling 59 mm (2.3 in) over 8 days, but with significantly lower humidity at 64%. For more details, visit Cluj-Napoca weather in September.
January and October present contrasting weather patterns in Cluj-Napoca. In January, temperatures can plunge to a minimum of -21°C (-6°F), with an average of -3°C (28°F) and a maximum of 12°C (53°F), accompanied by high humidity levels of 93%. The month experiences about 34 mm (1.3 in) of precipitation over approximately 9 days. In contrast, October offers a milder climate, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F) and an average of 10°C (50°F). While October sees slightly more precipitation at 53 mm (2.1 in) over 7 days, the humidity drops to 83%. For more details, visit Cluj-Napoca weather in October.
January and November exhibit significant differences in temperature and overall weather conditions. January is characterized by much colder temperatures, with average highs only reaching 12°C (53°F) and lows plummeting to -21°C (-6°F), making it one of the coldest months. In contrast, November presents milder conditions, with average high temperatures of 22°C (73°F) and lows around -8°C (19°F). Precipitation levels are somewhat similar, with January receiving 34 mm (1.3 in) and November slightly higher at 41 mm (1.6 in), both occurring over approximately nine days. Humidity levels are also similar, with January at 93% and November slightly lower at 91%. For more detailed insights into November's weather specifics, you can explore Cluj-Napoca weather in November.
In comparing the weather between January and December, we see distinct differences in temperature and precipitation. January tends to be colder, with average temperatures reaching a minimum of -21°C (-6°F) and an average of -3°C (28°F), while December remains milder, with temperatures only dropping to a minimum of -13°C (9°F) and averaging around 0°C (33°F). Precipitation levels are also higher in December, accumulating 65 mm (2.6 in) over 13 days, compared to January's 34 mm (1.3 in) over 9 days. Notably, both months exhibit high humidity levels, with January at 93% and December at 92%. For more detailed insights on December weather, refer to Cluj-Napoca weather in December.
In January, Cluj-Napoca becomes a winter wonderland, contrasting sharply with the milder months that surround it. The chill is palpable, marked by an average temperature that hovers around freezing, with temperatures plummeting to cold extremes at night. This month also sees an uptick in precipitation, often falling as snow, which adds to the city's enchanting winter atmosphere. Additionally, the high humidity levels create a crispness in the air, making the experience of January distinctly different from the rest of the year. For a deeper understanding of the city's climate throughout the year, explore Cluj-Napoca Climate.