Last updated: August 27, 2025
Olsztyn in December presents a chilly landscape, with temperatures ranging from a maximum of 10°C (50°F) to a minimum of -12°C (10°F) and an average of 1°C (34°F). The month is characterized by high humidity levels at 93%, contributing to a crisp atmosphere. With 12 days of precipitation and a total of 51 mm (2.0 in) of rainfall, the weather can be quite damp, making warm clothing essential for outdoor activities. December in Olsztyn encapsulates the beauty of winter, inviting visitors to embrace the season's charms, even amidst the cold.
As December arrives in Olsztyn, Poland, the winter chill settles in, with temperatures reflecting the seasonal shift. The month typically sees minimums dropping to around -12°C (10°F), while the average hovers at a brisk 1°C (34°F), providing a stark contrast to the warmer months. Daytime highs can reach up to 10°C (50°F), offering brief respites from the cold. This gradual decline in temperatures from the milder autumn months indicates a transition into a more intense winter season, with December often serving as a precursor to the colder extremes of January and February. As the landscape transforms into a winter wonderland, residents and visitors alike brace for snow-laden days and cozy evenings by the fire.
In December, Olsztyn experiences a notable increase in precipitation, with 51 mm (2.0 in) recorded over 12 days. This marks a shift from the drier months of November, which saw only 38 mm (1.5 in) across 10 days. The trend suggests that December ushers in a wetter season, preparing the region for the colder winter months ahead. While this level of precipitation is lower than the peak summertime totals—like July's impressive 101 mm (4.0 in)—it is consistent with a gradual rise seen from the preceding months. As the year wraps up, residents can expect more frequent, if not overly intense, rain showers, adding to the charm of a winter landscape while also highlighting the variability that characterizes Olsztyn’s climate.
In Olsztyn, Poland, December marks a notable peak in humidity, with levels soaring to 93%. This increase signifies a return to colder, wetter conditions after a gradual decline from the more humid months of late autumn. As the year progresses from January's high of 92%, we can observe a trend of decreasing humidity through the milder spring and early summer months, dipping to a comfortable low of 56% in June. However, as autumn sets in, humidity levels begin to rise once more, culminating in December’s damp chill. This cyclical pattern underscores the region’s seasonal transitions, where humidity remains a constant companion in the winter months, enhancing the cozy, atmospheric feel of Olsztyn during this time of year.
In December, Olsztyn experiences a significant drop in the UV Index, registering a low value of 1, which indicates minimal risk for sunburn during outside activities. This trend of reduced UV exposure continues a pattern established from the onset of winter, with January and February also exhibiting low levels. As the year progresses into the spring and summer months, the UV Index climbs, peaking at 8 during June and July, highlighting a shift towards increased sun intensity. The transition back to lower UV values in the fall reaffirms seasonal variations, reminding residents to remain vigilant about sun safety during the brighter months. For detailed insights on UV patterns, visit Olsztyn UV Index.
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In Olsztyn, Poland, the December sunshine offers a gentle farewell to the year, with about 120 hours of daylight illuminating the winter landscape. While this is a noticeable dip from the vibrant 343 hours of sunshine enjoyed in April, it marks a transition into the darker months that make the return of longer days in spring all the more cherished. As temperatures drop, Olsztyn's winter sunlight becomes a precious commodity, reminding residents of the longer, warmer days ahead. The trend of gradually increasing daylight from the stark 93 hours in January to the peak of nearly 440 hours in June emphasizes the journey toward spring, making every ray in December a hopeful sign of brighter days to come.
As December rolls into Olsztyn, Poland, the likelihood of basking in sunny weather takes a notable dip, with just a 22% chance of sunshine. This trend is reflective of the month's transition into winter, where the sun hides behind darker clouds, contrasting sharply with the brighter months leading up to it. While the sun begins to peek out with a 30% chance in February, December’s percentages are reminiscent of the lower chances seen in January at just 9% and November's 15%. This steady decline emphasizes the long, gray stretches of winter in Olsztyn, reminding residents and visitors alike to savor the fleeting moments of sunlight before the harsher aspects of the season take hold.
In Olsztyn, Poland, the December daylight duration is a stark contrast to the vibrant summer months, with only 7 hours of daylight. This gradual decline begins in November, where daylight dwindles to 8 hours, highlighting the shift as the year approaches its end. As winter tightens its grip, the pattern of daylight can be observed throughout the year—starting from a modest 8 hours in January, increasing steadily to a peak of 16 hours in June and July. Following this summer zenith, daylight hours begin to taper off once again, creating a rhythmic cycle that underscores the beauty of seasonal change. December’s limited natural light serves as a gentle reminder of the shorter days, setting the stage for the cozy, introspective atmosphere of winter in Olsztyn.
In December, Olsztyn experiences a noticeable shift in wind patterns, with an average wind speed of 4.3 m/s (10 mph), making it one of the windiest months of the year. This uptick follows a steady increase from the cooler autumn months of October and November, both averaging 4.6 m/s (10 mph). Interestingly, the wind speed maintains a dynamic range throughout the year, peaking during the autumn transition while receding during the summer months of June and July, where it dips to 2.8 m/s (6 mph). As the year draws to a close, December's breezy conditions bring a crispness to the air, marking the transition into winter in this picturesque Polish city.
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 December, temperatures in Olsztyn range from a minimum of -12°C (10°F) to a maximum of 10°C (50°F), with an average temperature of 1°C (34°F). The month experiences about 51 mm (2.0 in) of precipitation over 12 days, accompanied by relatively high humidity at 93%. In contrast, January sees a drop in minimum temperatures to -21°C (-6°F) and a slightly lower maximum of 9°C (49°F), with an average temperature of -1°C (31°F). Despite having slightly less precipitation at 44 mm (1.7 in) over 11 days, January maintains a similar humidity level of 92%. For more details, visit Olsztyn weather in January.
In December, temperatures in Olsztyn range from a minimum of -12°C (10°F) to a maximum of 10°C (50°F), with an average temperature of 1°C (34°F). The month sees about 51 mm (2.0 in) of precipitation spread over 12 days, alongside relatively high humidity levels at 93%. In contrast, February experiences cooler conditions, with temperatures dropping to a minimum of -20°C (-4°F) and peaking at 14°C (58°F), averaging around 0°C (32°F). Precipitation is slightly lower at 43 mm (1.7 in) over 8 days, and humidity decreases to 90%. For a more detailed look at February weather, you can explore Olsztyn weather in February.
In December, the weather tends to be cold and damp, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 10°C (50°F) and an average of around 1°C (34°F). The month sees about 51 mm (2.0 in) of precipitation over approximately 12 days, contributing to a high humidity level of 93%.
In contrast, March experiences slightly warmer conditions, with temperatures ranging from a minimum of -16°C (3°F) to a maximum of 16°C (61°F) and an average temperature of 3°C (37°F). Precipitation is similar, with around 46 mm (1.8 in) distributed over 11 days, and the humidity decreases to 87%. For more details on March weather, visit Olsztyn weather in March.
In December, the weather is quite cold, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 10°C (50°F) and an average around freezing at 1°C (34°F). The month sees high humidity levels at 93% and experiences about 51 mm (2.0 in) of precipitation over 12 days, making it a particularly damp and chilly month. In contrast, April ushers in a more moderate climate, where temperatures can reach a minimum of -5°C (24°F) and spike to a pleasant maximum of 27°C (80°F), with an average of 7°C (46°F). With only 39 mm (1.5 in) of precipitation over 9 days and lower humidity at 76%, April offers a refreshing transition into spring. For more details, you can check Olsztyn weather in April.
When comparing the weather of December and May, a stark contrast is evident in both temperature and humidity. December experiences colder temperatures, with lows reaching -12°C (10°F) and averages hovering around 1°C (34°F), while May warms up significantly, presenting a much more pleasant average of 12°C (55°F), with highs soaring to 28°C (83°F).
Precipitation levels are also noteworthy; December sees about 51 mm (2.0 in) of rainfall across 12 days, whereas May has a higher total of 87 mm (3.4 in) over 14 days, indicating that spring brings more frequent, though often lighter, showers. Furthermore, the humidity in December is quite high at 93%, whereas May enjoys a more comfortable humidity level of 58%. This transformation in weather patterns clearly showcases the transition from the chill of winter to the warmth of spring. For more detailed information, visit Olsztyn weather in May.
In December, the weather presents a chilly landscape with temperatures ranging from a frigid -12°C (10°F) at night to a moderate 10°C (50°F) during the day, making the average temperature hover around 1°C (34°F). With 51 mm (2.0 in) of precipitation spread over 12 days, the high humidity of 93% contributes to a damp and cold atmosphere. In contrast, June offers a warm respite, with temperatures varying from a mild 3°C (37°F) at night to a scorching 33°C (91°F) during the day and an average of 18°C (65°F). Although June receives slightly more precipitation at 59 mm (2.3 in) over 11 days, the lower humidity of 56% provides a much more pleasant experience. For more details on the June weather, check out Olsztyn weather in June.
December and July present strikingly contrasting weather patterns. In December, temperatures can drop as low as -12°C (10°F), with an average of around 1°C (34°F) and a maximum reaching just 10°C (50°F). This month also sees higher humidity levels at 93%, along with about 51 mm (2.0 in) of precipitation over 12 days. In contrast, July offers a much warmer climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 32°C (90°F), and an average of 19°C (66°F). While July experiences more precipitation, totaling 101 mm (4.0 in) across 15 days, its humidity is significantly lower at 59%. For a deeper look into July's weather patterns, you can check Olsztyn weather in July.
December and August present stark contrasts in weather. December is characterized by cold temperatures, with averages hovering around 1°C (34°F) and occasional dips to -12°C (10°F), making it a chilly month ideal for winter activities. Precipitation occurs on about 12 days, with a total of 51 mm (2.0 in) and humidity levels peaking at a high 93%. In contrast, August boasts milder and significantly warmer weather, where the average temperature is a comfortable 18°C (65°F) and can soar up to 32°C (90°F). Like December, August also sees rain on 12 days, but with greater total precipitation at 73 mm (2.9 in) and a much drier humidity of 60%. For a detailed look at what to expect, check out Olsztyn weather in August.
In comparing the weather between December and September, it's clear that these two months offer vastly different experiences. December presents a cold climate with temperatures ranging from a chilly -12°C (10°F) to a mild maximum of 10°C (50°F), coupled with high humidity levels at 93%. It also sees about 51 mm (2.0 in) of precipitation across 12 days. In contrast, September boasts a more moderate and warmer ambiance, with temperatures ranging from a minimum of 2°C (36°F) to a comfortable high of 30°C (87°F). This month is slightly wetter, with 73 mm (2.9 in) of precipitation over 11 days and a much lower humidity of 71%. For a comprehensive look at the weather specifics during this time, you can check Olsztyn weather in September.
In Olsztyn, the weather in December contrasts significantly with October. While October experiences a milder climate with average temperatures around 10°C (50°F) and highs reaching 22°C (71°F), December brings colder conditions, with averages dropping to around 1°C (34°F) and maximums only reaching 10°C (50°F). Additionally, October tends to be drier with 68 mm (2.7 in) of precipitation over 12 days, while December sees slightly less precipitation at 51 mm (2.0 in) but coupled with a higher humidity of 93%. For more details on October weather, you can visit Olsztyn weather in October.
In comparing the weather between November and December, December tends to be significantly colder with average temperatures dropping from 5°C (41°F) in November to around 1°C (34°F) in December. The minimum temperatures also reflect this shift, plunging from -6°C (22°F) in November to a chilling -12°C (10°F) in December. While November sees slightly more pleasant conditions, including a higher maximum temperature of 16°C (60°F), December experiences increased precipitation, totaling 51 mm (2.0 in) over 12 days, compared to 38 mm (1.5 in) over 10 days in November. Additionally, December’s humidity is slightly higher at 93%, compared to November’s 90%. For more detailed information, check out Olsztyn weather in November.
As December settles over Olsztyn, the weather shifts markedly, inviting a chill that contrasts dramatically with the milder months that precede it. With temperatures dipping to an average of just 1°C, the winter season asserts its presence, often bringing a delightful mix of frosty mornings and occasional snowfall. Humidity levels remain high at 93%, adding a crisp bite to the air, while precipitation occurs on about 12 days, creating a picturesque winter landscape. As the year draws to a close, Olsztyn transforms into a serene winter wonderland, making it a unique experience compared to the warmer, more temperate months. For a deeper dive into the city's weather trends, explore Olsztyn Climate.