Last updated: August 27, 2025
In Alta, Sweden, December weather presents a captivating winter landscape characterized by varied temperatures and significant humidity. With maximums reaching 8°C (47°F) and minimums dipping to -10°C (14°F), the month averages a brisk 2°C (35°F). This period witnesses a notable precipitation total of 70 mm (2.8 in) over approximately 15 days, contributing to the region's serene beauty. With humidity levels hovering around 87%, the cold air feels crisp, enhancing the magical vibe of this Arctic wonderland. Whether you're venturing for a winter adventure or enjoying the stunning natural scenery, December in Alta offers an enchanting experience for all.
In Alta, Sweden, December ushers in the chill of winter, with temperatures dipping to a brisk minimum of -10°C (14°F). The month typically features an average temperature of 2°C (35°F), moderating slightly as the holiday season approaches. However, highs reach only about 8°C (47°F), indicating a clear departure from the milder fall months. As the year draws to a close, the frosty air transforms the landscape into a winter wonderland, setting the stage for snow-covered days and twinkling nights, making December a quintessential representation of Alta's cold but enchanting climate.
In December, Alta, Sweden experiences a notable shift in precipitation, with a total of 70 mm (2.8 in) recorded over 15 days. This increase in both rainfall and the number of precipitation days signifies the onset of winter, as the region transitions from the milder fall months. Notably, December's precipitation surpasses that of the preceding months, particularly November's 50 mm (2.0 in) over 11 days. This pattern suggests that as temperatures drop, the likelihood of snowfall increases, making December one of the wetter months in the annual cycle. Such trends highlight the importance of preparation for winter conditions, as residents and visitors alike can expect more frequent, albeit lighter, precipitation in the form of snow as they move deeper into the season.
December in Alta, Sweden, experiences an average humidity of 87%, which reflects a subtle dip compared to the preceding months of November (90%) and October (89%). This trend of high humidity levels, peaking in the earlier winter months, underscores Alta's chilly climate. As the year progresses towards winter, humidity generally remains elevated, hovering around the mid to high 80s; however, a gradual decline is observed moving from summer into fall. Interestingly, while December shows a slight reduction, it still maintains notable moisture in the air, setting the stage for the cold, snow-laden months ahead. This consistent humidity pattern paints a vivid picture of Alta's climate, where the crisp winter air mingles with lingering moisture, contributing to the region's enchanting winter scenery.
In December, Alta, Sweden experiences a low UV Index of 1, indicating minimal sun exposure risk, much like the preceding months of January and November. Residents and visitors can expect a burn time of 45 minutes under direct sunlight—plenty of time to enjoy outdoor winter activities without significant concern for skin damage. This month neatly concludes a gradual shift from the higher UV levels seen in mid-summer, with the UV Index peaking at 7 in both June and July. As winter deepens, the UV exposure remains consistent and manageable, making December a great time for outdoor adventures. For detailed insights and forecasts, check out the Alta UV Index.
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In Alta, Sweden, the month of December marks a notable dip in sunlight hours, with just 78 hours illuminating the winter landscape. This is a stark contrast to the vibrant 171 hours of sunlight seen in February and the peak of 488 hours in July. As the year progresses towards winter, the gradual decline in daylight becomes evident, starting from 454 hours in May to a meager 71 hours in January. Despite December's limited sunshine, the gradual increase in hours from the desolate winter months leads toward the invigorating spring, where daylight burgeons to a promising 366 hours in April. The cycle of sunlight in Alta illustrates the profound seasonal shifts, dancing between extended summer days and the darkness of winter, creating a captivating and dynamic atmosphere throughout the year.
In December, the likelihood of sunny weather in Alta, Sweden remains modest, hovering around 30%—a figure that aligns closely with the preceding months of October and November. This stability hints at the long Arctic nights that characterize winter, where sunlight is limited and the enchanting glow of winter landscapes takes precedence. Interestingly, as the year progresses, the chances of sun experience a noticeable increase during the spring and summer months, peaking in July with a remarkable 57%. This trend underscores a distinct seasonal shift, where residents and visitors alike eagerly anticipate the gradual return of brighter days following the dark, chilly December.
In Alta, Sweden, the transition from winter to summer is marked by a striking fluctuation in daylight duration. December, with its 6 hours of daylight, represents the depths of winter, mirroring the shortest days of the year. As the calendar turns to January and November, the darkness continues to linger, but by February, sunlight begins to assert itself, increasing to 9 hours. The gradual lengthening of days peaks in June with a remarkable 18 hours of daylight, offering nearly round-the-clock exposure to the sun. This exuberance then ebbs as summer fades, leading to a steady decline back to 6 hours by the end of the year in December, highlighting the rhythmic ebb and flow of daylight that defines life in this northern paradise.
In December, Alta, Sweden, experiences a steady wind speed of 5.3 m/s (12 mph), maintaining the same average as the previous month. This consistency marks a slight resurgence from the lower speeds witnessed in the late spring and summer months, where winds dipped to around 3.5 m/s in June. As winter approaches, the winds tend to pick up, with autumn months showcasing a gradual increase, peaking at 5.8 m/s in October. Overall, the December winds reflect a stable transition into the colder season, echoing the region's enchanting winter charm.
Weather in Alta varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Alta, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit notable differences in weather patterns, though both are characterized by chilly temperatures. In December, temperatures range from a minimum of -10°C (14°F) to an average of 2°C (35°F) and a maximum of 8°C (47°F). The month experiences a higher precipitation level of 70 mm (2.8 in) over approximately 15 days, combined with a humidity of 87%. In contrast, January tends to be colder, with minimum temperatures dropping to -15°C (6°F) and an average temperature of 0°C (33°F), while the maximum reaches 9°C (49°F). Precipitation decreases significantly to 43 mm (1.7 in) spread over about 10 days, and humidity slightly increases to 90%. For more detailed information on January weather, you can visit Alta weather in January.
In comparison to December, February tends to be colder, with average temperatures hovering around 0°C (32°F) compared to December's 2°C (35°F). The minimum temperatures in February can dip even lower, reaching -12°C (11°F), while December manages to stay slightly milder with a minimum of -10°C (14°F). Precipitation also decreases from December's 70 mm (2.8 in) over 15 days to just 38 mm (1.5 in) across 9 days in February, indicating a drier month. Despite these variations, humidity remains high in both months, with February at 88% and December at 87%. For more insights into February weather specifically, you can explore Alta weather in February.
In December, temperatures range from a chilly -10°C (14°F) to a maximum of 8°C (47°F), with an average of 2°C (35°F). The precipitation level is relatively high at 70 mm (2.8 in), occurring over 15 days and accompanied by a humidity of 87%. In contrast, March sees similar minimum temperatures of -10°C (14°F), with average temperatures rising to 2°C (35°F) but peaking at a warmer 14°C (57°F). Precipitation in March drops to 44 mm (1.7 in) over just 9 days, while humidity slightly increases to 89%. For more details on weather conditions in March, you can check Alta weather in March.
December weather is characterized by colder temperatures, with an average of 2°C (35°F) and minimum lows reaching -10°C (14°F). This month sees significant precipitation, averaging 70 mm (2.8 in) over 15 days, and high humidity levels around 87%. In contrast, April brings a noticeable shift as temperatures rise, averaging 5°C (40°F) with maximum highs reaching up to 17°C (62°F). Precipitation decreases to 25 mm (1.0 in) over just 7 days, while humidity remains relatively low at 85%. The change from December to April highlights a transition from winter's chill to the mildness of spring. For more specific details about the weather in April, please check Alta weather in April.
December weather is characterized by much colder temperatures, with a minimum of -10°C (14°F) and an average around 2°C (35°F). In contrast, May experiences a milder climate, with minimums around -2°C (29°F) and average highs reaching up to 21°C (69°F). While December sees more precipitation over 15 days totaling 70 mm (2.8 in), May is relatively drier with only 50 mm (2.0 in) of rain spread across 9 days. Additionally, December has higher humidity levels at 87%, whereas May's humidity is comparatively lower at 77%. For further information on May weather, you can check Alta weather in May.
December and June present starkly contrasting weather conditions. In December, temperatures in Alta range from a chilling minimum of -10°C (14°F) to a maximum of 8°C (47°F), with an average of only 2°C (35°F). This month also sees significant precipitation, averaging 70 mm (2.8 in) over 15 days, accompanied by high humidity levels at 87%. In contrast, June offers much milder weather, with temperatures fluctuating between a minimum of 7°C (44°F) and a pleasant maximum of 23°C (75°F), averaging around 15°C (60°F). Precipitation drops to 44 mm (1.7 in) over just 7 days, and humidity is lower at 76%. For more details on the weather conditions in June, you can visit Alta weather in June.
When comparing December and July weather, the contrast is striking. December experiences much colder temperatures, with a minimum of -10°C (14°F) and an average around 2°C (35°F), whereas July enjoys milder conditions with a minimum of 9°C (48°F) and an average of 17°C (64°F). Precipitation is more frequent in December, occurring over 15 days and totaling 70 mm (2.8 in), while July sees less rain, about 55 mm (2.1 in) over just 9 days. Additionally, humidity is significantly higher in December at 87%, compared to 74% in July, contributing to the chill in the air. For more specifics on July weather, you can check Alta weather in July.
December and August in Alta present stark contrasts in weather. December features cold temperatures, with a minimum of -10°C (14°F) and an average of 2°C (35°F), while August showcases a much milder climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (81°F). Precipitation levels are similar, with December receiving 70 mm (2.8 in) over 15 days compared to August’s 68 mm (2.7 in) over 12 days. Additionally, December is characterized by higher humidity at 87%, compared to a more comfortable 77% in August. For a detailed look at August weather in Alta, check out Alta weather in August.
In December, the weather is notably colder, with average temperatures around 2°C (35°F), dipping as low as -10°C (14°F). This month experiences more precipitation as well, totaling 70 mm (2.8 in) over approximately 15 days, paired with high humidity levels of 87%. In contrast, September offers a milder climate, with average temperatures reaching 13°C (56°F) and highs of 22°C (72°F). Precipitation in September is somewhat less, amounting to 52 mm (2.0 in) over about 10 days, while humidity remains slightly lower at 85%. For more details, check Alta weather in September.
In comparing the weather between December and October, we find notable differences. December experiences much colder temperatures, with a minimum of -10°C (14°F) and an average high of 8°C (47°F), while October boasts a milder range with temperatures starting at a minimum of 0°C (32°F) and peaking at 16°C (60°F). Precipitation levels are fairly similar, with December receiving 70 mm (2.8 in) over approximately 15 days, compared to October's 76 mm (3.0 in) across 13 days. Humidity levels are slightly lower in December at 87%, against October's 89%. For a deeper look into October weather patterns, you can visit Alta weather in October.
In comparing the weather between November and December, we see a notable drop in temperatures as December brings a min of -10°C (14°F) and an average of 2°C (35°F), contrasting with November’s milder min of -7°C (20°F) and an average of 5°C (41°F). While November boasts a maximum temperature of 14°C (57°F), December's peak is limited to 8°C (47°F). Precipitation is relatively higher in December, with 70 mm (2.8 in) occurring over 15 days, compared to November's 50 mm (2.0 in) across 11 days. Humidity is slightly lower in December at 87%, whereas November feels a bit more humid at 90%. For more details on November's weather, you can visit Alta weather in November.
As December settles in, Alta experiences a notable shift in weather patterns, characterized by cooler temperatures and increased precipitation. With an average temperature hovering around 2°C, the chilly days often feel crisper, contrasting sharply with the milder conditions of earlier months. This period also sees a rise in humidity levels, making the already wet days feel even more brisk, as precipitation occurs on about half the month. The snow-dusted landscape creates a picturesque winter setting, setting the scene for holiday festivities. For a deeper insight into how Alta’s climate varies throughout the year, visit Alta Climate.