Last updated: August 27, 2025
In December, Sigtuna, Sweden, experiences a chilly transition into winter, with an average temperature hovering around 0°C (33°F). Daily highs reach a maximum of 9°C (49°F), while nighttime lows can plummet to a brisk -18°C (1°F), offering a true taste of the season. The month sees about 56 mm (2.2 in) of precipitation spread over 13 days, contributing to the 87% humidity that envelops the town. This blend of cool temperatures and frequent showers creates a picturesque, frosty landscape, inviting both residents and visitors to embrace the beauty of winter in Sigtuna.
In December, Sigtuna, Sweden, experiences a notable transition as winter tightens its grip, with temperatures diving to a minimum of -18°C (1°F). The average temperature hovers around 0°C (33°F), while daytime highs reach a brisk 9°C (49°F). This chilly month contrasts sharply with the preceding autumn, highlighting a significant drop in temperatures as the year draws to a close. December’s frigid conditions mark a clear departure from the milder late fall temperatures, ushering in the enchanting atmosphere of a snowy Scandinavian winter. Visitors can expect a picturesque landscape, along with the crisp air that accompanies this season, making Sigtuna a serene winter wonderland.
In December, Sigtuna experiences a notable uptick in precipitation, with 56 mm (2.2 in) of rain spread over 13 days. This marks a significant increase from the previous month, where November saw 42 mm over just 9 days. The trend suggests that as the year closes, Sigtuna's weather becomes increasingly soggy, contributing to a rather damp and chilly atmosphere typical of Scandinavian winters. The consistent rainfall throughout December not only enhances the festive ambiance but also lays the groundwork for the regions' winter landscapes, as the wet conditions often precede the onset of snow.
In December, Sigtuna, Sweden, experiences a notable drop in humidity to 87%, following a cold autumn marked by humidity levels peaking at 90% in November. This slight decrease suggests the onset of winter conditions, although humidity remains relatively high compared to the spring and summer months, where it dipped to a low of 74% in July. The trend throughout the year highlights a clear seasonal rhythm, where humidity tends to rise in the colder months, peaking in early winter and early spring, while the warmer months witness a gradual decline. This cycle creates a unique atmospheric quality in Sigtuna, influencing both the environment and the local lifestyle amidst its enchanting winter charm.
In December, Sigtuna, Sweden, experiences a low UV Index of 1, similar to the preceding months of November and January. This consistent low exposure category means that residents and visitors can enjoy outdoor activities without significant risk of sunburn, with a safe burn time of 45 minutes. As the year progresses from lush summer months marked by higher UV levels (up to 7 in June and July) to the calmer winter months, it's a reminder of how seasonal changes influence UV exposure. For more detailed information about UV levels throughout the year, check out Sigtuna UV Index.
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In Sigtuna, Sweden, December greets winter with a modest 72 hours of sunshine, a contrast to the vibrant glow of previous months. As the year winds down, the sunlight gradually diminishes from a peak of 483 hours in July, marking the height of summer. While the days grow shorter and the chill sets in, December's sun harbors a gentle warmth that reminds locals of brighter days ahead. The trend shows a significant decline from the 438 hours in May and a continued descent through the autumn months, culminating in the year’s dimmest light. Yet, this seasonal shift transforms Sigtuna into a picturesque winter wonderland, where even fleeting rays of sunshine bring a sense of cheer amidst the festive preparations.
As December rolls into Sigtuna, the chance of sunny weather hovers around 31%, marking a minor dip compared to the sunnier months of June and July, which boast probabilities of 48% and 54%, respectively. Though winter settles in, December offers slightly more optimism for sunshine than the preceding months of October and November, each at 28%. This trend suggests that while the days grow shorter and colder, there remains a subtle chance to catch glimpses of sunlight amidst the frosty Scandinavian charm, inviting a serene beauty to the winter landscape.
As winter settles in, December in Sigtuna, Sweden, brings a familiar hush, with daylight lasting just 6 hours. This stark reduction follows the gradual dimming that begins in November, where the sun offers a mere hour more. The daylight duration has steadily waned since the vibrant 18 hours of sunlight observed in June, illustrating the region's dramatic seasonal shifts. While the days grow shorter, the luminous landscape takes on a serene beauty, inviting residents and visitors alike to embrace the cozy atmosphere of winter. As December fades, anticipation builds for the return of longer days and the reawakening of the sun in the coming months.
As December settles over Sigtuna, Sweden, the average wind speed slightly mirrors the year's earlier chill, clocking in at 3.3 m/s (7 mph). This pace is consistent with the gentle breezes of November and February, suggesting a seasonal trend where the winds remain moderate during the winter months. Notably, the winds tend to pick up in October, reaching a brisk 4.0 m/s (9 mph), before tapering off again as the year closes. Overall, while December's winds are calm compared to the spring's lively gusts, they maintain a steady presence, adding to the serene yet crisp ambiance that characterizes winter in this historical Swedish town.
Weather in Sigtuna varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sigtuna, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures range from a minimum of -18°C (1°F) to a maximum of 9°C (49°F), with an average hovering around 0°C (33°F). The month sees about 56 mm (2.2 in) of precipitation over 13 days and retains a high humidity of 87%. In contrast, January experiences even colder conditions, with temperatures dipping as low as -23°C (-10°F) and averaging -1°C (31°F), while the maximum can reach 10°C (51°F). Precipitation decreases to 34 mm (1.4 in) over just 7 days, but humidity rises slightly to 90%. For more detailed information, visit Sigtuna weather in January.
In December, temperatures range from a frigid minimum of -18°C (1°F) to a maximum of 9°C (49°F), with an average temperature of around 0°C (33°F). The month experiences 56 mm (2.2 in) of precipitation over 13 days, alongside a high humidity of 87%. In contrast, February offers slightly milder conditions, with temperatures varying from a minimum of -17°C (1°F) to a maximum of 12°C (53°F) and an average of -1°C (30°F). Precipitation decreases to 32 mm (1.2 in) over just 7 days, while humidity remains comparable at 88%. For more detailed insights into February weather, you can check Sigtuna weather in February.
December weather is characterized by colder temperatures, with averages hovering around 0°C (33°F) and lows dropping to -18°C (1°F). This month typically experiences more precipitation, amounting to 56 mm (2.2 in) over about 13 days, and the high humidity of 87% contributes to a chilly, damp atmosphere.
In contrast, March brings a gradual warming trend, with average temperatures rising to 1°C (35°F) and maximums reaching up to 18°C (65°F). Precipitation decreases to 41 mm (1.6 in) over just 8 days, and humidity remains fairly high at 89%. For a detailed look at Sigtuna's March weather, visit Sigtuna weather in March. Overall, while both months can feel cold and damp, March typically offers a milder and more pleasant experience compared to the harsher conditions of December.
December and April present a stark contrast in weather conditions. In December, temperatures can plunge to a minimum of -18°C (1°F), with an average of 0°C (33°F) and a maximum of 9°C (49°F). The month sees significant precipitation, totaling 56 mm (2.2 in) over about 13 days, while humidity remains high at 87%. In contrast, April experiences milder conditions, with a minimum temperature of -9°C (17°F) and an average of 5°C (42°F), reaching up to a maximum of 24°C (76°F). This month also has lower precipitation levels at 28 mm (1.1 in) over just 7 days, accompanied by a slightly lower humidity of 85%. For more specific insights on April weather in Sigtuna, visit Sigtuna weather in April.
December and May present stark contrasts in weather. In December, temperatures are significantly colder, with a minimum of -18°C (1°F) and an average around 0°C (33°F), while May enjoys a milder climate, featuring temperatures ranging from a minimum of -5°C (23°F) to a maximum of 30°C (85°F). While both months receive similar levels of precipitation at 56 mm (2.2 in), December experiences more rainy days, totaling 13 compared to May's 10. Additionally, humidity is higher in December at 87%, compared to 77% in May, contributing to the chilly atmosphere of midwinter. For more detailed insights on the weather in May, you can check Sigtuna weather in May.
The weather in December is markedly colder compared to June, with temperatures ranging from a frigid -18°C (1°F) to a maximum of 9°C (49°F), and an average of around 0°C (33°F). This contrasts sharply with June, where temperatures swing from a milder 3°C (37°F) at night to highs of 31°C (89°F) during the day, averaging 17°C (63°F). Though December experiences a slightly higher amount of precipitation at 56 mm (2.2 in) over 13 days, humidity levels are also higher at 87%, making it feel particularly chilly. In comparison, June sees a bit less rain at 58 mm (2.3 in) but has a lower humidity of 76%, often resulting in a more pleasant and comfortable atmosphere. For a detailed overview, check out Sigtuna weather in June.
December and July present stark contrasts in weather conditions. In December, temperatures plummet, with averages hovering around 0°C (33°F) and lows reaching as low as -18°C (1°F), while July enjoys a mild warmth with averages of 18°C (65°F) and highs that can soar to 32°C (91°F). Precipitation is relatively consistent in both months, with December experiencing 56 mm (2.2 in) over 13 days and July seeing slightly less at 53 mm (2.1 in) over 10 days. Additionally, the humidity level in December is quite high at 87%, compared to a more comfortable 74% in July. For more detailed information about July weather in Sigtuna, Sigtuna weather in July provides additional insights.
December and August present contrasting weather conditions. In December, temperatures can plunge as low as -18°C (1°F), with an average of 0°C (33°F) and a high of 9°C (49°F), creating a chilly environment accentuated by high humidity at 87%. This month also sees about 56 mm (2.2 in) of precipitation over 13 days, contributing to a wintry atmosphere. In stark contrast, August offers a much milder climate, with temperatures ranging from a minimum of 4°C (39°F) to a pleasant maximum of 31°C (88°F) and an average of 17°C (63°F). A total of 74 mm (2.9 in) of precipitation is recorded over 12 days, alongside a lower humidity level of 77%. For more detailed information, you can check Sigtuna weather in August.
In December, the weather is much colder than in September, with temperatures ranging from a frigid minimum of -18°C (1°F) to a maximum of 9°C (49°F), making it one of the coldest months of the year. In contrast, September enjoys a milder climate with temperatures that vary from a minimum of -1°C (30°F) to a much warmer maximum of 27°C (80°F), offering a more pleasant average temperature of 13°C (55°F). Additionally, while December experiences slightly more precipitation at 56 mm over 13 days, September sees comparable rainfall of 51 mm but over a shorter span of just 8 days. Humidity levels are quite similar, with December at 87% and September at 85%. For more detailed weather information for September, visit Sigtuna weather in September.
In comparison to October, December presents a much colder climate, with temperatures ranging from a minimum of -18°C (1°F) to a maximum of 9°C (49°F), averaging around 0°C (33°F). In October, temperatures are milder, with a minimum of -4°C (25°F) and a maximum of 19°C (67°F), averaging 8°C (46°F). While both months experience notable precipitation, October has a slightly higher amount at 68 mm (2.7 in) over 12 days, compared to December's 56 mm (2.2 in) over 13 days. Humidity levels remain relatively high in both months, with October at 89% and December at 87%. For more information, you can check the Sigtuna weather in October.
December presents a notable shift in weather compared to November. The minimum temperatures drop significantly in December to -18°C (1°F), while November offers relatively milder lows of -13°C (9°F). The average temperature in December is around 0°C (33°F), compared to November's 4°C (39°F), indicating a general cooling trend. Additionally, December sees a slight increase in precipitation, totaling 56 mm (2.2 in) over 13 days, compared to 42 mm (1.6 in) over 9 days in November. Humidity remains high in both months, with December at 87% and November slightly higher at 90%. For a more detailed look, you can refer to Sigtuna weather in November.
December in Sigtuna is a time of contrasting beauty, as the weather shifts dramatically from the milder months preceding it. With temperatures plunging to their yearly lows, the month showcases a delicate balance of biting cold and occasional warmth, creating a picturesque winter landscape. Precipitation is also a common theme, with increased humidity and frequent rainy days, making December one of the wetter months. As you embrace the charm of Sigtuna during this chilly season, explore more about the variations throughout the year at Sigtuna Climate.