Last updated: August 21, 2025
December in Imatra, Finland, presents a charming yet challenging winter landscape. With average temperatures hovering around -3°C (27°F), and a maximum of 5°C (42°F), visitors can expect a frosty experience, occasionally dipping to a chilling -21°C (-6°F). The month sees substantial precipitation, totaling 73 mm (2.9 in) over about 16 days, contributing to the high humidity levels of 95%. Such conditions foster a magical wintry atmosphere, perfect for those seeking to embrace the beauty of Finland's cold season.
In December, Imatra, Finland, begins to see the full embrace of winter, with temperatures often dipping to a chilly minimum of -21°C (-6°F). The month averages around -3°C (27°F), signaling a stark contrast to the mild autumn that preceded it. While daytime highs can reach a modest 5°C (42°F), the overall trend showcases a significant drop from the more temperate conditions of November. This persistent cold lays the groundwork for an enchanting winter landscape, inviting outdoor enthusiasts to engage in activities like skiing and ice fishing, as December firmly establishes Imatra as a winter wonderland.
In December, Imatra, Finland, experiences a significant shift in its precipitation patterns, mirroring the winter chill that envelops the region. With 73 mm (2.9 in) of precipitation recorded, December matches October's levels, contributing to the late-year accumulation. The number of precipitation days jumps to 16, surpassing several earlier months, indicating a more consistent pattern of rainfall or snowfall that characterizes the onset of winter. This surge in wet days reflects the month’s cold climate, where snowfall becomes more frequent, adding a magical touch to the winter landscape. Overall, December's precipitation trends highlight a transition into the depths of winter, with a blend of liquid and frozen forms of moisture transforming the environment.
In December, Imatra, Finland, experiences a notable increase in humidity, registering at 95%. This month marks a slight rise from November's humidity levels of 93% and is part of a gradual trend of rising humidity as the year progresses towards winter. After hitting its peak in January at 98%, humidity levels begin to subtly decline, with February and March showcasing lower readings of 96% and 93%, respectively. Interestingly, the summer months, particularly June and July, exhibit the lowest humidity figures, at 75% and 82%, hinting at a significant seasonal shift. As we approach the end of the year, the pattern suggests that Imatra's dampness is a defining characteristic of its climate, especially in the colder months, leading to a more humid atmosphere as temperatures drop.
In Imatra, Finland, the UV Index during December reflects a consistent trend towards lower levels of sun exposure, remaining at 1, which is categorized as low. This means residents and visitors can enjoy outdoor activities with minimal risk of harm from UV radiation, as the burn time extends to about 45 minutes without significant risk for most skin types. This pattern of low UV levels is typical for the winter months, following a gradual increase from the moderate levels seen in spring and early summer, where the index peaks at 7 during July. Overall, December's UV index reinforces the importance of safe sun practices, even in the colder months. For more detailed insights, check out the full guide on Imatra UV Index.
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In Imatra, Finland, December serves as a reminder of the fading light in the year, with a modest total of just 24 hours of sunshine. This shift marks a stark contrast to the vibrant sunny months of May and June, which bask in 438 and 485 hours, respectively. As winter descends, the days grow shorter, and the sun's presence dwindles significantly from the 86 hours recorded in November. This decline continues, leading into January, which, despite being the coldest month, only offers 31 hours of sunlight. The trend is clear: as the seasons change, so too does the availability of sunlight, emphasizing the stark beauty and challenges of winter in this picturesque Finnish town.
As December rolls into Imatra, Finland, the likelihood of basking in sunny weather dwindles significantly, with only a 6% chance of sunshine. This reflects a broader trend seen throughout the winter months, where the opportunities for clear skies diminish sharply. Following a slight uptick in early spring, where March enjoys a more optimistic 35% sun chance, the summer months, particularly June and July, offer a delightful respite with over 55% likelihood of sunshine. However, as temperatures drop and the days grow shorter, the sun becomes an elusive feature of the December landscape, setting the stage for a cozy, though cloudy, conclusion to the year.
In Imatra, Finland, the daylight duration follows a captivating rhythm throughout the year, with December marking the low point at just 5 hours of daylight. This gradual decline begins after the vibrant 17 hours of sunshine in May, as daylight decreases steadily through the summer months. By August, the transition signals a retreat into shorter days, culminating in the chilly depths of winter where the sun rises late and sets early. Interestingly, while December offers the least light, it sets the stage for the gradual return of longer days starting in January, where daylight begins its slow climb once more. This cyclical pattern of daylight not only shapes the seasonal landscape but also influences the daily lives of Imatra's residents, beckoning them to embrace the enchanting winter darkness before the sun rejoices in its return.
As December sweeps into Imatra, Finland, the wind begins to whisper its final tales of the year, with an average speed of 3.7 m/s (approximately 8 mph). This subtle increase in wind velocity compared to the summer months reflects the gradual transition into winter, where the air carries a crisp, refreshing chill. Interestingly, December's winds are stronger than those found in the milder months of June and July, which lingered around a gentle 2.9 m/s. As we move toward the colder months, the wind's momentum seems to build, culminating in a notable spike in October, averaging 4.5 m/s. It's a dance of nature, where the breezes blend seasonal changes, reminding us that each gust is a brushstroke in the canvas of Imatra's winter landscape.
Weather in Imatra varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Imatra, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures typically range from a minimum of -21°C (-6°F) to a maximum of 5°C (42°F), with an average temperature of -3°C (27°F). The month experiences around 73 mm (2.9 in) of precipitation over 16 days and maintains a high humidity level of 95%.
In contrast, January sees even colder temperatures, with a minimum of -26°C (-15°F) and an average of -5°C (24°F), although it can rise to a maximum of 7°C (45°F). Precipitation decreases to 46 mm (1.8 in) across 12 days, while humidity slightly increases to 98%. For more detailed information about January weather, you can check Imatra weather in January.
In December, temperatures range from a low of -21°C (-6°F) to a maximum of 5°C (42°F), with an average temperature of -3°C (27°F). The month experiences 73 mm (2.9 in) of precipitation over 16 days and maintains a high humidity level of 95%. In contrast, February is colder, with temperatures dipping to a minimum of -28°C (-18°F) and reaching a maximum of 6°C (44°F), averaging -6°C (22°F). This month sees slightly less precipitation at 53 mm (2.1 in) over 11 days, while the humidity remains high at 96%. For more detailed information on February weather, you can visit Imatra weather in February.
December and March present contrasting weather experiences, although they share some similarities. In December, temperatures range from a brisk -21°C (-6°F) to a slightly warmer 5°C (42°F), with an average of -3°C (27°F). The month sees significant precipitation over 16 days, totaling 73 mm (2.9 in), accompanied by high humidity levels of 95%.
In contrast, March generally exhibits milder conditions, with a temperature range from a minimum of -27°C (-16°F) to a maximum of 11°C (52°F), and an average temperature of -2°C (28°F). While March receives lower precipitation—48 mm (1.9 in) over 12 days—it maintains a similar humidity level of 93%.
For a closer look at the weather in March, check out Imatra weather in March.
December and April exhibit significant differences in weather patterns. In December, temperatures can plunge as low as -21°C (-6°F), with an average of -3°C (27°F) and a maximum of 5°C (42°F). This cold month also sees high humidity levels of 95% and approximately 73 mm (2.9 in) of precipitation over 16 days. In contrast, April experiences a milder climate with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 19°C (67°F), averaging around 3°C (38°F). Precipitation decreases to 46 mm (1.8 in) spread over just 11 days, along with lower humidity at 88%. For more detailed insights, you can check Imatra weather in April.
December and May showcase stark contrasts in weather conditions. In December, temperatures plunge to a minimum of -21°C (-6°F) and average around -3°C (27°F), with a maximum reaching just 5°C (42°F). The month experiences frequent precipitation over approximately 16 days, accompanied by a high humidity level of 95%, resulting in a generally cold and damp atmosphere. In contrast, May brings a more temperate climate with minimum temperatures dropping only to -3°C (27°F) and soaring to a pleasant maximum of 28°C (83°F). With an average temperature of 10°C (50°F), May has less precipitation, totaling 52 mm (2.1 in) across merely 10 days, and lower humidity at 77%. For more details about the delightful weather in May, you can check out Imatra weather in May.
In December, the weather is characterized by frigid temperatures, with a minimum of -21°C (-6°F) and averages around -3°C (27°F), peaking at a maximum of 5°C (42°F). The precipitation for the month totals 73 mm (2.9 in), occurring over 16 days, accompanied by high humidity at 95%. In stark contrast, June brings milder conditions, with temperatures ranging from a minimum of 2°C (36°F) to an average of 16°C (61°F), and reaching as high as 32°C (89°F). The month sees less precipitation, totaling 53 mm (2.1 in) over just 10 days, and features lower humidity at 75%. For more details regarding June weather in Imatra, see Imatra weather in June.
In December, the weather is characterized by harsh cold, with temperatures fluctuating between a frigid -21°C (-6°F) and a maximum of 5°C (42°F), alongside high humidity levels of 95%. The month witnesses significant precipitation spread across 16 days, amounting to 73 mm (2.9 in). In stark contrast, July offers a much milder climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 32°C (89°F) and an average of 18°C (64°F), making it an ideal time for outdoor activities. July experiences slightly less precipitation, totaling 72 mm (2.8 in) over 12 days, along with a lower humidity of 82%. For more detailed information, you can check Imatra weather in July.
In December, the weather is cold and stark, with temperatures ranging from a chilling -21°C (-6°F) to a mild max of 5°C (42°F), averaging around -3°C (27°F). The month sees about 73 mm (2.9 in) of precipitation spread over 16 days, alongside high humidity levels at 95%. In contrast, August brings warmer temperatures, with a minimum of 7°C (44°F) and a comfortable average of 16°C (61°F), peaking at 29°C (85°F). Although it experiences slightly higher precipitation at 86 mm (3.4 in) over the same number of days, the humidity decreases to 84%. For a more detailed look at what to expect, check out Imatra weather in August.
The weather in December is significantly colder compared to September, with temperatures ranging from a minimum of -21°C (-6°F) to a maximum of 5°C (42°F), while September enjoys milder conditions with temperatures between 0°C (33°F) and 23°C (74°F). Both months experience similar precipitation levels, with December recording 73 mm (2.9 in) over 16 days and September slightly lower at 70 mm (2.8 in) over 12 days. Additionally, December has a higher humidity level at 95% compared to September's 90%, which can contribute to a more chilling effect in the winter month. For more details on September weather, you can check Imatra weather in September.
In comparing the weather of December and October, it is evident that December is significantly colder, with average temperatures hovering around -3°C (27°F) compared to October's milder average of 6°C (43°F). The minimum temperature in December can plunge to a frigid -21°C (-6°F), while October sees a milder low of -4°C (24°F). Both months receive similar precipitation levels at 73 mm (2.9 in), but December experiences this rainfall over a greater number of days, totaling 16 compared to October's 13 days. Additionally, December's humidity is slightly higher at 95%, compared to 93% in October. For further details on October's weather, you can visit Imatra weather in October.
In comparing the weather between November and December, December experiences significantly colder temperatures, with a minimum of -21°C (-6°F) and an average of -3°C (27°F), in contrast to November's milder minimum of -10°C (15°F) and average of 2°C (35°F). December also sees higher precipitation levels, totaling 73 mm (2.9 in) over 16 days, compared to November’s 48 mm (1.9 in) over 11 days. Humidity remains high in both months, with December at 95% and November at 93%. For more details on November's weather, visit Imatra weather in November.
As December unfolds in Imatra, the weather presents a striking departure from the milder months of autumn. The chilly atmosphere, characterized by an average temperature that dips below freezing, sets the stage for a winter wonderland. Although precipitation is frequent, with 16 days of rain or snow and a total accumulation of 73 mm, the high humidity of 95% can make the cold feel even more pervasive. This month showcases a stark contrast to the warmer seasons, inviting residents and visitors alike to embrace the beauty and challenges of a Finnish winter. For a deeper dive into the climate throughout the year, visit Imatra Climate.