Last updated: August 27, 2025
December in Norrtälje, Sweden offers a captivating winter experience, where temperatures fluctuate between a maximum of 9°C (49°F) and a minimum of -12°C (11°F), averaging around 1°C (34°F). This month sees significant precipitation, with 65 mm (2.6 in) spread over 14 days, creating a cozy, snow-dusted landscape. With an average humidity of 87%, the air is crisp and brisk, adding to the charm of the season. Whether you're walking through charming streets or enjoying the serene surroundings, December in Norrtälje is a picturesque portrayal of winter wonder.
In Norrtälje, Sweden, December brings a distinct chill as winter settles in, with temperatures reflecting a steady decline towards the colder months. The minimum temperatures hover around -12°C (11°F), while the average climbs only slightly to 1°C (34°F), and the maximum reaches a modest 9°C (49°F). This month marks a transition from the milder fall, as temperatures drop from the previous month's averages, signaling the onset of a frosty season. With these cooler conditions, residents and visitors can expect a picturesque wintry landscape, perfect for enjoying seasonal activities and the festive atmosphere that December brings.
In December, Norrtälje experiences a notable surge in precipitation, with 65 mm (2.6 in) of rainfall spread over 14 days, marking it as one of the wetter months of the year. This consistent moisture contributes to a seasonal charm, contrasting with the dry spells earlier in spring and summer. Notably, December's precipitation amount surpasses most months, except for the heavier downpours of October. The increase in rainy days reflects a transition into winter, with frequent showers offering a crisp, invigorating atmosphere in this picturesque Swedish town. As the year draws to a close, the combination of increased rainfall and colder temperatures sets the stage for a picturesque winter landscape, enriching Norrtälje's serene beauty.
In Norrtälje, Sweden, December ushers in a moderate humidity level of 87%, a slight dip from the preceding months, which have consistently hovered around the 90% mark in both November and January. Over the year, a noticeable trend emerges: while the winter months experience high humidity, peaking in January at 90%, the warmer months of June to August see a gradual decline, with July recording the lowest humidity at 74%. As the seasons shift, humidity levels rebound slightly in the fall, indicating that Norrtälje’s climate offers a distinct rhythm, with December bridging the gap between the crisp winter air and the lingering moisture of late autumn.
As winter settles in Norrtälje, December brings a low UV Index of 1, similar to the preceding months of November and January, which allows for a safe outdoor experience with an ample burn time of 45 minutes. This consistency in UV exposure reflects the region's tendency towards minimal sunlight during the colder months, positioning December as a time for cozy indoor activities. However, as the year progresses into spring, a notable increase in UV levels is observed, peaking at 7 during the summer months of June and July, emphasizing the importance of sun safety as the sun's rays become more intense. To stay informed about UV conditions throughout the year, check the detailed forecast here: Norrtaelje UV Index.
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As December embraces Norrtälje, Sweden, the sunshine begins to wane, offering just 75 hours of bright light, a stark contrast to the sun-drenched months that precede it. The year starts off with a mere 69 hours in January, but by February the daylight begins its gradual resurgence, reaching 168 hours. Spring sees a notable increase, with March basking in 264 hours, and April thriving at 368 hours. As summer arrives, the days stretch to their peak, with 490 hours of sunshine in July. However, the autumn months bring a gentle decline, tapering down to 136 hours in November. December's limited sunshine serves as a reminder of the cyclical nature of light in this northern haven, where the long days of summer give way to the introspective beauty of winter.
In Norrtälje, Sweden, the likelihood of sunny weather in December hovers at 26%, mirroring the trend seen in the preceding months of October and November. This statistic suggests a generally overcast period as the year draws to a close. Interestingly, the chance for sunshine starts to rise noticeably in the spring, peaking in July with a delightful 57% chance, illustrating how the winter months are marked by much gloom compared to the vibrant summer. As we reflect on the colder months, it’s evident that sunshine is a rare but cherished occurrence in December, urging residents to embrace the cozy charm of winter while looking forward to the brighter days ahead.
In Norrtälje, Sweden, December marks the culmination of the year’s diminishing daylight, offering just 6 hours of sunlight. This stark reduction follows November's meager 7 hours, creating a tranquil yet shadowy ambiance as winter takes hold. As daylight progressively decreases from the 17 hours enjoyed in June, residents start to adapt to the rhythm of shorter days, transitioning from the vibrancy of spring and summer to the quiet introspection of the colder months. The return of longer days begins in February, as sunlight gradually re-emerges, hinting at the promise of brighter skies ahead. This cyclical dance of daylight not only defines the seasonal character but also reflects the resilience and adaptability of life in this northern locale.
As December rolls into Norrtälje, Sweden, the average wind speed remains a steady 4.5 m/s (10 mph), mirroring the calm of the preceding months. This consistency in wind patterns is notable, especially as the winds in winter tend to be less vigorous than those of fall, which peaked at 5.3 m/s (12 mph) in October. Throughout the year, the area experiences a gentle tapering of wind speeds during the summer, with the lowest averages seen in June and July at 3.1 m/s (7 mph) and 3.4 m/s (8 mph) respectively. However, as autumn arrives, the winds regain their strength, approaching the winter averages once more. Thus, December's winds, while cool and crisp, offer a sense of continuity, seamlessly transitioning the region into the heart of winter.
Weather in Norrtaelje varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Norrtaelje, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures range from a minimum of -12°C (11°F) to a maximum of 9°C (49°F), with an average of 1°C (34°F). The month sees approximately 65 mm (2.6 in) of precipitation over 14 days, accompanied by a humidity level of 87%. In contrast, January experiences slightly colder temperatures, with a minimum of -14°C (7°F) and the same maximum of 9°C (49°F), but an average temperature of 0°C (32°F). Precipitation decreases to 39 mm (1.5 in) over just 10 days, and humidity rises slightly to 90%. For a detailed look at the weather conditions in January, visit Norrtaelje weather in January.
December and February both feature similar maximum temperatures, peaking at around 9°C (49°F), but the overall climate varies noticeably between the two months. In December, temperatures range from a minimum of -12°C (11°F) to an average of 1°C (34°F), accompanied by 65 mm (2.6 in) of precipitation over 14 days, resulting in a humidity level of 87%. In contrast, February experiences slightly colder conditions with minimum temperatures dropping to -14°C (7°F) and an average of -1°C (31°F). Precipitation in February is lower, totaling 35 mm (1.4 in) over just 9 days, while humidity remains high at 88%. For a detailed look at February weather trends, visit Norrtaelje weather in February.
In December, the weather is characterized by colder temperatures, with minimums dropping to -12°C (11°F) and maximums reaching only 9°C (49°F). The month sees an average temperature of 1°C (34°F) and experiences relatively high precipitation of 65 mm (2.6 in) over 14 days, accompanied by 87% humidity. In contrast, March presents a slight warming trend, with temperatures varying from a minimum of -13°C (9°F) to a maximum of 17°C (62°F), maintaining a similar average of around 1°C (35°F). Precipitation decreases to 40 mm (1.6 in) over just 7 days, while humidity remains slightly higher at 89%. For a detailed look at March's weather, visit Norrtaelje weather in March.
In comparing the weather of December and April, December presents itself with significantly colder temperatures, characterized by a minimum of -12°C (11°F) and an average of only 1°C (34°F), whereas April sees a gradual warming with temperatures ranging from a minimum of -10°C (15°F) to a maximum of 20°C (69°F). Precipitation levels also differ notably; December experiences 65 mm (2.6 in) over 14 days, making it a wetter month compared to April, which has only 26 mm (1.0 in) of rain over 7 days. Humidity remains fairly high in both months, with December at 87% and April slightly lower at 85%. For a more detailed look at April weather, you can visit Norrtaelje weather in April.
In December, the temperatures in Norrtälje can be quite frigid, with minimums plummeting to -12°C (11°F) and averages hovering around 1°C (34°F), peaking at a maximum of 9°C (49°F). The month experiences significant precipitation over approximately 14 days, contributing to a high humidity level of 87%. In contrast, May brings a refreshing warmth, with temperatures ranging from a minimum of -2°C (29°F) and averaging 9°C (49°F) to a maximum of 25°C (78°F). Although May has lower total precipitation at 48 mm (1.9 in) across just 9 days, the humidity level decreases to 77%, making it a much more pleasant time of year. For more detailed insights, check out Norrtaelje weather in May.
December and June showcase a stark contrast in weather conditions. In December, temperatures dip as low as -12°C (11°F), with an average of just 1°C (34°F) and highs reaching 9°C (49°F). The month is characterized by high humidity at 87% and considerable precipitation, with rain or snow falling on around 14 days and totaling 65 mm (2.6 in). In contrast, June brings a much milder climate, with minimum temperatures of 5°C (41°F) and average highs soaring to 28°C (82°F). The humidity decreases to 76%, and precipitation is lighter, totaling 42 mm (1.7 in) over about 7 days. For more insights, check out Norrtaelje weather in June.
December and July present striking contrasts in weather conditions. In December, temperatures plummet, ranging from a frigid minimum of -12°C (11°F) to a maximum of 9°C (49°F), with an average hovering around 1°C (34°F). The month experiences significant precipitation, totaling 65 mm (2.6 in) over approximately 14 days, accompanied by a high humidity level of 87%. Conversely, July boasts a much milder climate, with temperatures ranging from a comfortable minimum of 8°C (47°F) to a warm maximum of 30°C (86°F) and an average of 17°C (64°F). This month sees slightly less precipitation at 61 mm (2.4 in) over about 10 days, and humidity levels are lower at 74%. For a closer look at July’s pleasant weather conditions, you can check Norrtaelje weather in July.
When comparing the weather in December and August, we see a stark contrast in temperatures and conditions. December features cold weather with minimum temperatures dropping to -12°C (11°F) and an average around 1°C (34°F), while August enjoys much milder temperatures, ranging from a minimum of 6°C (44°F) to a maximum of 28°C (82°F) with an average of 17°C (63°F). Precipitation is slightly higher in December at 65 mm (2.6 in) over 14 days compared to August's 62 mm (2.4 in) across 12 days, but the higher humidity in December at 87% creates a much chillier atmosphere. In contrast, August's humidity of 77% offers a more comfortable, warmer feel. For more detailed insights into August conditions, check out Norrtaelje weather in August.
December weather in Norrtaelje presents a stark contrast to that of September. With average temperatures hovering around 1°C (34°F), December is significantly colder, featuring a minimum of -12°C (11°F) and a maximum of just 9°C (49°F). The month also experiences more precipitation, totaling 65 mm (2.6 in) over approximately 14 days, alongside high humidity levels at 87%. In contrast, September enjoys milder temperatures, averaging 13°C (55°F), with highs reaching up to 22°C (73°F), and less precipitation at 47 mm (1.8 in) over 9 days. For a closer look at September weather specifics, you can refer to this link: Norrtaelje weather in September.
In December, the weather turns much colder compared to October, with temperatures dropping from an average of 8°C (47°F) in October to just 1°C (34°F) in December. While October experiences milder conditions with maximum temperatures reaching 17°C (63°F), December's highs only reach up to 9°C (49°F). Additionally, both months have a similar number of rainy days—14 in December and 13 in October—but December's precipitation totals around 65 mm (2.6 in), slightly less than October's 72 mm (2.8 in). Humidity remains high in both months, with December averaging 87% compared to October's 89%. For more specific details on October's weather, visit Norrtaelje weather in October.
In December, temperatures drop significantly compared to November, with average lows of -12°C (11°F) and an average high of only 9°C (49°F), making it feel much colder overall. While November's temperatures range from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), December's colder averages, accompanied by higher precipitation levels of 65 mm (2.6 in) over 14 days, contribute to a more wintry atmosphere. Additionally, December maintains a humidity level of 87%, slightly lower than November's 90%, which could affect how the cold feels. For more detailed insights on November's climate, check out Norrtaelje weather in November.
As December settles in, Norrtaelje transforms into a winter wonderland, showcasing much colder temperatures compared to other months. The average temperature drops significantly, contrasting sharply with the milder autumn days. December is distinguished not just by its chill, but also by increased precipitation, bringing a noticeable dampness to the air with a high humidity level. This month typically features around two weeks of rain or snow, contributing to the crispy atmosphere that characterizes the holiday season. For those intrigued by seasonal shifts, a deeper look into the data can be found at Norrtaelje Climate.