Last updated: August 27, 2025
Experience the winter wonderland of Poznan, Poland, in January, where temperatures range from a brisk maximum of 12°C (54°F) to a chilly minimum of -18°C (1°F), creating a dramatic winter landscape. With an average temperature of just 1°C (34°F), this month showcases the season's full beauty. Visitors can expect 46 mm (1.8 in) of precipitation over approximately 11 days, resulting in frosty conditions complemented by a high humidity level of 90%. January in Poznan is a time to embrace the cold charm of winter, making it ideal for those seeking a truly authentic Polish experience.
In Poznan, Poland, January is a month of stark contrasts, with temperatures dipping as low as -18°C (1°F) and averaging around 1°C (34°F). This chillier climate sets the stage for winter activities, while the highs can reach a mild 12°C (54°F), hinting at the gradual transition toward spring. As we move into February, the temperatures remain brisk, but there's a subtle increase, with averages nudging up to 2°C (35°F). This trend continues into March, where milder days emerge, and the max temperatures can touch 19°C (67°F). The progression of warmer days continues into April and May, showcasing a delightful rise with averages hitting 9°C (48°F) and 13°C (56°F) respectively. Overall, January symbolizes the beginning of Poznan's transformative journey from the depths of winter towards the inviting warmth of spring, each month revealing a gradual thaw and an anticipation of the vibrant life that awaits.
In January, Poznan, Poland, experiences an average precipitation of 46 mm (1.8 in) over the course of 11 days, setting the tone for a wet winter. This amount reflects a slight increase compared to February's 44 mm (1.7 in), despite fewer precipitation days. As winter progresses into March, the total diminishes further to 43 mm (1.7 in), still maintaining 11 rainy days. Interestingly, while January is relatively wet, the months that follow often bring a mix of fluctuating rainfall, with May and June seeing a significant uptick, reaching 68 mm and 69 mm respectively. This trend highlights a gradual transition toward wetter conditions as spring runs into summer, suggesting a cycle where mild winter rains pave the way for more substantial patterns later in the year.
In January, Poznan experiences a notably high humidity level of 90%, setting the stage for the city’s cold winter atmosphere. As the season transitions into February, humidity remains steady at 90%, maintaining that chill in the air. However, as we move into March, there’s a slight dip to 87%, hinting at the gradual arrival of spring. By April, humidity begins to decline more significantly to 80%, marking the end of the dreary winter months. As the weather warms in May, humidity levels drop further to 67%, a trend that continues through the summer months of June, July, and August, creating a more comfortable climate. Yet, as September rolls in, the humidity begins to rebound to 78%, foreshadowing the return of the cooler seasons. With October and November, levels rise again, reaching 84% and 89% respectively, culminating in the year with December’s peak humidity of 92%. This cyclical pattern illustrates Poznan's transition from the dampness of winter to the milder summers, reflecting the interplay between seasonal changes and humidity levels throughout the year.
In January, Poznan experiences a UV Index of 1, indicating a low exposure category where the risk of harm from unprotected sun exposure is minimal, allowing for a safe burn time of 45 minutes. This trend of low UV levels continues into February, with the Index rising slightly to 2 still classified as low. As winter transitions to spring, March sees a notable increase with a UV Index of 4, marking the beginning of moderate exposure, which reduces the safe burn time to 30 minutes. This pattern continues into April, signaling the approach of warmer months. By May, residents must be more vigilant as the UV Index jumps to 7, indicating high exposure with a reduced burn time of 25 minutes. This increment continues through the summer months of June and July, where the Index peaks at 8, categorized as very high. As August and September arrive, there is a slight decline with the Index settling at 7 and 6 respectively—still within the high exposure range. Into the fall, the UV levels decrease further, ultimately returning to low exposure by November and December with indices of 2 and 1 respectively. This variation throughout the year underscores the importance of sun protection strategies as the UV Index fluctuates. Be informed and prepared by checking the Poznan UV Index.
UV Risk Categories
In Poznan, Poland, January may bring only 108 hours of sunshine, but the daylight hours gradually crescendo as the year unfolds. By February, those numbers leap to 191 hours, heralding a brightening landscape. March sees an even more significant surge with 265 hours, as spring starts to awaken the city from its winter slumber. The trend continues upward, peaking in June with a delightful 420 hours of sunshine, perfect for outdoor exploration. As summer wanes, the hours gradually decrease, settling at 384 hours in May before falling back to 288 hours by September. The crisp air of autumn ushers in 241 hours in October, followed by a dip in November to 162 hours, and finally a subdued 123 hours in December, marking the end of the annual cycle. This rhythmic ebb and flow of sunshine paints a vibrant portrait of Poznan, showcasing the beauty of each season.
In January, Poznan, Poland, experiences a modest 14% chance of sunny weather, making it one of the cloudiest months of the year. This trend is indicative of the winter season's grip, where the likelihood of sunshine begins to rise significantly in the following months. By February, the chance of sun nearly doubles to 29%, and continues climbing through spring, with March reaching 37% and April hovering around 35%. As we progress into the warmer months, the sunshine percentage peaks in June at 50%, before gradually tapering off in late summer and autumn. This pattern highlights the seasonal shift in Poznan's climate, where the dreary January skies make way for brighter, sunnier days as the year unfolds.
In Poznan, Poland, January marks the beginning of a gradual shift in daylight duration, offering around 8 hours of light. As February rolls in, the days begin to lengthen slightly, reaching 9 hours. This upward trend accelerates through March and April, where the daylight stretches to 11 and 13 hours, respectively. By May, residents bask in 15 hours of daylight, a prelude to the summer months when sunlight peaks at an impressive 16 hours in June and July. However, as summer wanes, a gentle decline begins; August sees a drop to 14 hours, followed by a decrease to 12 hours in September. As autumn sets in, October offers 10 hours of daylight, and the cycle continues into the winter months, with November and December seeing a return to 8 and a mere 7 hours of light. This rhythmic pattern of increasing and decreasing daylight not only shapes the seasons but also influences the daily lives of Poznan's residents.
In Poznań, Poland, January brings a brisk yet steady average wind speed of 3.4 m/s (8 mph), mirroring the conditions of the following month, February. As winter transitions into spring, the wind begins to pick up slightly, reaching 3.5 m/s (8 mph) in March and growing to 3.6 m/s in April. The trend continues through May, where the wind is at its peak for the early part of the year at 3.7 m/s. However, June introduces a noticeable dip with winds dropping to 2.8 m/s (6 mph), reflecting the calming of spring's breezes. As summer unfolds, the wind remains relatively gentle, averaging around 2.9 to 3.2 m/s (7 mph). A refreshing change occurs in the fall as the wind speeds rise again in October and November, reaching 4.0 m/s (9 mph), before settling back to 3.9 m/s in December, bringing a feeling of anticipation for the brisk winds of winter ahead. This cyclical pattern showcases how Poznań's wind flows harmoniously with the changing seasons.
Weather in Poznan varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Poznan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, January tends to be slightly colder with average temperatures around 1°C (34°F) and a maximum of 12°C (54°F). In contrast, February sees a small uptick in temperatures, reaching an average of 2°C (35°F) and peaking at 17°C (63°F). Both months experience similar levels of humidity at 90%, but February enjoys marginally less precipitation, with 44 mm over 9 days compared to January's 46 mm over 11 days. For more details on February weather trends, you can visit Poznan weather in February.
In January, the weather is characterized by colder temperatures, with a minimum of -18°C (1°F) and an average of just 1°C (34°F), while March sees a slight warming trend, with averages rising to 4°C (40°F) and maximums reaching 19°C (67°F). Both months experience similar levels of precipitation, with January receiving 46 mm (1.8 in) and March having 43 mm (1.7 in), but the humidity remains high in both months at around 90% in January and slightly lower at 87% in March. The overall conditions transition from the depths of winter in January to the more welcoming early signs of spring by March. For a detailed look at the climate in March, you can explore Poznan weather in March.
January and April exhibit contrasting weather patterns in terms of temperature and overall climate conditions. January is characterized by cold temperatures, with a minimum of -18°C (1°F) and an average of just 1°C (34°F), while April sees a significant warming trend, featuring a minimum of -3°C (26°F) and an average of 9°C (48°F). Precipitation levels are also noteworthy; January experiences 46 mm (1.8 in) over 11 days, whereas April has slightly less at 34 mm (1.4 in) over 9 days. Humidity levels are higher in January at 90%, compared to 80% in April, reflecting the transition from the depths of winter to the mildness of spring. For a detailed look at the April climate, check out Poznan weather in April.
In January, the weather is notably cold, with temperatures ranging from a chilling minimum of -18°C (1°F) to a maximum of 12°C (54°F). Average temperatures hover around 1°C (34°F), accompanied by high humidity levels at 90%, making the air feel even colder. Precipitation is moderate, occurring over 11 days and totaling 46 mm (1.8 in).
In contrast, May brings a significant transformation with much milder temperatures. The minimum temperature rises to 0°C (32°F) and can reach a pleasant maximum of 30°C (86°F), with an average of 13°C (56°F). While precipitation increases to 68 mm (2.7 in) over the same number of days, the humidity drops to a more comfortable 67%, enhancing the overall experience of spring. For a detailed overview of weather trends, check out Poznan weather in May.
January and June present a stark contrast in weather conditions. In January, temperatures typically range from a chilling -18°C (1°F) at night to a mild 12°C (54°F) during the day, with an average temperature around 1°C (34°F). The month sees about 46 mm (1.8 in) of precipitation over 11 days and a high humidity level of 90%. In contrast, June brings a much warmer atmosphere, with temperatures ranging from a minimum of 4°C (40°F) to a scorching maximum of 37°C (98°F), averaging 19°C (67°F). Although June experiences more precipitation at 69 mm (2.7 in) also spread over 11 days, the humidity drops to a comfortable 67%. For more details on June weather, check out Poznan weather in June.
In January, the weather is characterized by cold temperatures, with lows plunging to -18°C (1°F) and an average of just 1°C (34°F). Precipitation is relatively low at 46 mm (1.8 in) over 11 days, along with a high humidity level of 90%. In contrast, July brings a marked difference, with temperatures ranging from a minimum of 7°C (45°F) to a scorching maximum of 37°C (99°F), and an average temperature of 19°C (67°F). Rainfall increases to 99 mm (3.9 in) across 12 days, but humidity drops to a comfortable 67%. This stark contrast highlights the significant seasonal shift in Poznan’s climate. For more details, check out Poznan weather in July.
January and August present stark contrasts in weather. In January, temperatures can plunge as low as -18°C (1°F) with an average of just 1°C (34°F), while August brings milder conditions with minimum temperatures around 6°C (43°F) and an average of 20°C (68°F). Precipitation in January totals 46 mm (1.8 in) over about 11 days, whereas August sees slightly higher rainfall at 63 mm (2.5 in) across 10 days. Additionally, the humidity is notably higher in January at 90%, compared to a more comfortable 67% in August. For more details on August weather, you can check Poznan weather in August.
The weather in January presents a stark contrast to September, characterized by significantly colder temperatures. January experiences a minimum of -18°C (1°F) and an average of just 1°C (34°F), with a maximum of 12°C (54°F). On the other hand, September offers a much milder climate, with temperatures ranging from a minimum of 3°C (37°F) to a comfortable maximum of 33°C (92°F) and an average of 15°C (59°F). While January sees 46 mm (1.8 in) of precipitation over 11 days, September has slightly more rainfall at 59 mm (2.3 in) over 10 days, though with lower humidity levels of 78% compared to January's 90%. For more detailed insights into September weather, check out Poznan weather in September.
In January, temperatures tend to be quite frigid, with minimums reaching as low as -18°C (1°F) and an average temperature around 1°C (34°F). The month experiences significant humidity at 90% and receives approximately 46 mm (1.8 in) of precipitation over 11 days. In contrast, October offers a milder climate, featuring minimum temperatures around -3°C (27°F) and an average of 11°C (52°F), peaking at a comfortable 24°C (76°F). Although October sees slightly higher precipitation at 61 mm (2.4 in) also over 11 days, the humidity is lower at 84%. For more detailed insights, you can check out Poznan weather in October.
January and November exhibit notable differences in their weather patterns. January is characterized by much colder temperatures, with minimums reaching as low as -18°C (1°F) and an average of around 1°C (34°F), while November enjoys milder conditions, with temperatures averaging 6°C (43°F) and maximums soaring to 18°C (65°F). Additionally, January experiences slightly more precipitation, totaling 46 mm (1.8 in) over 11 days, compared to November's 40 mm (1.6 in) over just 8 days. Humidity levels remain quite high in both months, hovering around 90% in January and 89% in November. For more details, you can check out Poznan weather in November.
In comparing January and December weather, both months exhibit remarkably similar temperature patterns, with January averaging 1°C (34°F) and December at 2°C (36°F), while both featuring a maximum temperature of 12°C (54°F). The minimum temperatures are slightly colder in both months, with January reaching -18°C (1°F) and December -17°C (2°F). Precipitation levels are almost identical, with January receiving 46 mm (1.8 in) and December slightly higher at 47 mm (1.8 in), and both months seeing precipitation for 11 days. However, January's humidity is marginally lower at 90% compared to December's 92%. For more details, you can check out Poznan weather in December.
January in Poznan is a stark contrast to the milder months of spring and summer, grappling with a chill that often bites through layers of clothing. The average temperature hovers around the freezing mark with potential dips to bone-chilling lows, making it one of the coldest months of the year. With high humidity levels and nearly half the month experiencing precipitation, this time of year is characterized by damp conditions that can feel particularly frigid. If you're planning to visit Poznan in January, prepare for a wintry experience that’s markedly different from the more temperate seasons. For a comprehensive look at weather patterns throughout the year, check out Poznan Climate.