Last updated: August 27, 2025
December in Olsztyn, Poland is characterized by notable temperature fluctuations, with a maximum reaching 14°C (58°F), while average temperatures hover around 1°C (35°F) and can plummet to a minimum of -14°C (7°F). This chilly month experiences an average precipitation amount of 56 mm (2.2 in), spread across approximately 13 days, resulting in a high humidity level of 92%. As winter settles in, Olsztyn transforms into a picturesque landscape, perfect for those who appreciate the serene beauty of frosty days and the charm of festive winter activities.
In December, Olsztyn experiences a notable dip in temperatures, marking the transition into winter. The month typically sees a minimum of -14°C (7°F), creating a crisp atmosphere perfect for bundling up. With an average temperature of 1°C (35°F) and a maximum reaching 14°C (58°F), December maintains a chilly climate that often invites a light dusting of snow. This pattern reflects a gradual cooling trend as the year ends, following November's milder conditions. As daylight fades sooner and the air turns brisk, Olsztyn transforms into a serene winter landscape, offering a picturesque backdrop for seasonal festivities and cozy gatherings.
December in Olsztyn, Poland, brings an average precipitation of 56 mm (2.2 in), marking it as a moderately wet month. With around 13 rainy days, Olsztyn experiences a noticeable uptick in rainfall compared to November, which recorded only 40 mm over 9 days. This trend highlights a shift towards wetter conditions as the year wraps up, aligning with the spike in precipitation observed in the late autumn months. With December's precipitation slightly lower than the peak of 91 mm in August, it nevertheless plays a crucial role in sustaining the region's winter landscape. As the winter progresses, these patterns suggest a continuation of a cool, damp climate that characterizes the season in Olsztyn.
In Olsztyn, Poland, December marks a notable peak in humidity, reaching an average of 92%. This increase caps off a year characterized by fluctuating moisture levels, beginning with 90% humidity in January and gradually declining to its lowest of 65% in May. As the seasons shift, humidity starts to rise again, culminating in the chilly month of December, which sees a significant spike from 90% in November. This trend highlights the region's cool, damp winters, creating an atmosphere that is both crisp and heavily laden with moisture, as residents brace for the cold while wrapped in the embrace of heavy air.
In Olsztyn, Poland, the December UV Index drops to a mild 1, reflecting a low exposure category that means you can enjoy the outdoors with minimal risk of sunburn—approximately 45 minutes of exposure before needing to seek shade. This trend of declining UV levels throughout the autumn months becomes particularly evident as the year progresses, from a peak of 8 in June and July during summer to the cooler, more sheltered conditions of winter. Compared to the heights of late spring and summer, December presents a gentle reminder to balance sun safety with winter activities. For more details on UV levels throughout the year, visit Olsztyn UV Index.
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As winter approaches, Olsztyn experiences a gentle decline in daylight, with December offering around 132 hours of sunshine. This transitional month fits into a broader trend where the city enjoys its most sun-soaked days during the warmer months, peaking in July with 415 hours. Here, the rhythm of sunshine reflects the changing seasons; as temperatures drop, the hours of daylight taper off, following a pattern that sees the annual high of June and July give way to lesser illumination in late autumn and winter. Although December may be the dimmest month of the year, the charm of its crisp days invites a unique beauty, reminding us that even the shortest days can bring warmth and light in their own way.
In Olsztyn, Poland, the likelihood of experiencing sunny weather in December tends to dip significantly, with only a 16% chance of sunshine. This marks a notable decrease as the year comes to a close, contrasting sharply with the more sunlit months of June and May, which enjoy probabilities of 51% and 37% respectively. The transition into winter brings a gradual decline in sunny days, starting from a peak in early summer, with November already reflecting a lesser 26% chance. As the long, dark days of December settle in, residents can expect the clouds to dominate the sky, making sunny breaks a rare delight during this time of year.
In Olsztyn, Poland, the daylight duration experiences a dynamic ebb and flow throughout the year, reflecting the changing seasons. Starting with a modest 8 hours in both January and December, the days gradually lengthen as spring approaches, peaking at a vibrant 16 hours in June. This increase continues smoothly through April and May, with gains of up to 15 hours in May before slowly tapering off. The summer months bring a slight decline, as daylight begins to wane, followed by a notable drop to 10 hours in October. As the year closes, Olsztyn returns to its winter rhythm, where daylight stands still at 8 hours in both November and December, encapsulating the cyclical nature of light that defines this picturesque locale.
In Olsztyn, Poland, December ushers in a steady wind speed of 4.1 m/s (9 mph), aligning with the consistent breezes experienced in the preceding months. Notably, the late autumn and winter months showcase a remarkable stability, as October and November also hover around similar speeds, making December feel somewhat familiar in terms of wind intensity. As we transition through the year, it's intriguing to observe how the milder summer months see the calmest winds, with June and July both dipping to 2.8 m/s (6 mph). Meanwhile, the earlier months of winter mirror December's calmness but gradually ramp up, suggesting a gentle but persistent winter atmosphere as Olsztyn moves deeper into the season. Overall, December's winds reflect a notable continuity, bridging autumn's crispness with the approaching chill of winter.
Weather in Olsztyn varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Olsztyn, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between December and January, there is a noticeable shift in temperatures and conditions. December experiences milder temperatures, with a minimum of -14°C (7°F) and an average of 1°C (35°F), while January plunges to a minimum of -26°C (-15°F) and an average of -1°C (31°F). Precipitation is slightly less in January at 40 mm (1.6 in) compared to December's 56 mm (2.2 in), though January still has about 10 days of precipitation. Additionally, humidity remains high in both months, with December at 92% and January at 90%. For a more detailed look at weather patterns, you can refer to Olsztyn weather in January.
December and February exhibit striking similarities and slight variations in their weather patterns. Both months experience a minimum temperature of -14°C (7°F) and share an average temperature of around 1°C (35°F). However, February tends to be slightly warmer with a maximum temperature reaching 18°C (65°F), compared to December's peak of 14°C (58°F). In terms of precipitation, December receives a bit more, with 56 mm (2.2 inches) over 13 days, while February has 50 mm (2.0 inches) across 11 days. Humidity is also slightly lower in February at 88%, compared to December's 92%. For more details, you can check Olsztyn weather in February.
In December, temperatures tend to be colder, with a minimum of -14°C (7°F) and an average around 1°C (35°F), although it can reach up to 14°C (58°F) at times. The month is characterized by high humidity levels at 92% and a precipitation total of 56 mm (2.2 in) over roughly 13 days. In contrast, March experiences slightly milder temperatures, ranging from a minimum of -15°C (5°F) to an average of 4°C (39°F), and even peaking at 21°C (70°F). Precipitation in March is lower at 42 mm (1.7 in) across about 11 days, along with a lower humidity of 86%. For more details, you can visit Olsztyn weather in March.
December and April in Olsztyn present a stark contrast in weather conditions. December experiences much colder temperatures, with a minimum of -14°C (7°F) and an average of 1°C (35°F), while April enjoys milder weather, ranging from a minimum of -7°C (20°F) to an average of 9°C (48°F). The maximum temperature in December reaches only 14°C (58°F), compared to April's higher peak of 27°C (81°F). While both months receive similar precipitation—56 mm (2.2 in) in December and 58 mm (2.3 in) in April—December is marked by higher humidity at 92%, compared to April's more comfortable 79%. For more detailed information, you can visit Olsztyn weather in April.
December and May present strikingly different weather conditions. In December, temperatures can drop as low as -14°C (7°F), with an average temperature of around 1°C (35°F) and a maximum of 14°C (58°F). The month experiences significant precipitation (56 mm or 2.2 in) over 13 days, coupled with high humidity levels at 92%. In stark contrast, May sees much milder temperatures, ranging from a minimum of -2°C (29°F) to an average of 14°C (57°F), peaking at a warm 30°C (85°F). It also receives more precipitation, at 83 mm (3.3 in) over 15 days, but with lower humidity of 65%. For a more detailed look at May weather, check out Olsztyn weather in May.
December and June present stark contrasts in weather conditions. In December, temperatures can plunge as low as -14°C (7°F), with an average of 1°C (35°F) and highs reaching up to 14°C (58°F). The month is characterized by high humidity at 92%, with precipitation totaling 56 mm (2.2 in) over approximately 13 days. In contrast, June enjoys milder temperatures, starting at a minimum of 5°C (42°F) and averaging 19°C (67°F), with maximums soaring to 35°C (95°F). Although June has slightly higher precipitation at 76 mm (3.0 in) over 12 days, it comes with a more comfortable humidity level of 66%. For more detailed insights on the weather during this month, check Olsztyn weather in June.
When comparing December and July weather, the differences are quite stark. December experiences much colder temperatures, with a minimum of -14°C (7°F) and an average of just 1°C (35°F), while July boasts a much warmer atmosphere, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 37°C (99°F). Precipitation levels are relatively similar, with December seeing 56 mm (2.2 in) and July slightly higher at 83 mm (3.3 in), both occurring over 13 days. Furthermore, December's humidity is significantly higher at 92%, compared to July’s more moderate 67%. For a detailed look at July weather in Olsztyn, you can visit Olsztyn weather in July.
December and August present contrasting weather conditions, showcasing the extremes of winter and summer. In December, temperatures can plummet to a minimum of -14°C (7°F) and average around 1°C (35°F), while highs can reach 14°C (58°F). This month experiences high humidity at 92% and sees precipitation on 13 days, totaling 56 mm (2.2 in). In stark contrast, August enjoys a much warmer climate, with minimum temperatures of 7°C (44°F) and an average of 20°C (68°F), peaking at 35°C (94°F). Although it is drier, August still records precipitation on 12 days, accumulating 91 mm (3.6 in) at a significantly lower humidity level of 67%. For a detailed look at weather conditions, you can refer to Olsztyn weather in August.
In December, the weather is significantly colder, with temperatures ranging from a minimum of -14°C (7°F) to a maximum of 14°C (58°F), and an average of 1°C (35°F). In contrast, September experiences much milder temperatures, with a minimum of 1°C (34°F) and a maximum reaching 32°C (90°F), averaging 15°C (59°F). December also sees higher humidity levels at 92%, compared to September's 72%. Both months experience considerable precipitation, with December receiving 56 mm (2.2 in) over 13 days, while September has a more substantial 87 mm (3.4 in) over just 11 days. For more detailed insights into September weather, visit Olsztyn weather in September.
In comparing the weather between December and October, October offers milder temperatures, with an average of 11°C (51°F), while December experiences a much colder average of just 1°C (35°F). October's maximum temperature can reach up to 24°C (76°F), significantly warmer than December’s maximum of 14°C (58°F). Precipitation levels are relatively similar, with October receiving 65 mm (2.6 in) over 11 days compared to December’s 56 mm (2.2 in) over 13 days. Humidity is also lower in October at 83%, compared to a high of 92% in December. For more detailed insights, check out Olsztyn weather in October.
December's weather in Olsztyn showcases significantly colder temperatures compared to November. With a minimum of -14°C (7°F) and an average of 1°C (35°F), December experiences a sharper drop in warmth, whereas November's temperatures range from -7°C (19°F) to an average of 6°C (42°F). Additionally, December sees increased precipitation, totaling 56 mm (2.2 in) over 13 days, compared to November's 40 mm (1.6 in) across 9 days. Humidity levels are fairly similar, with December at 92% and November at 90%. For more details, check Olsztyn weather in November.
December in Olsztyn heralds the arrival of winter, where temperature swings create a notable chill that starkly contrasts with the milder months preceding it. The average chill sets in as the days shorten and the humidity rises, resulting in a damp atmosphere that can feel quite brisk. With precipitation making an appearance on nearly half the days of the month, Olsztyn experiences a shift from the serene greenery of autumn to the stark beauty of winter. If you're curious about how this month compares with the rest of the year, check out the detailed information available at Olsztyn Climate.