Last updated: August 21, 2025
December in Joensuu, Finland brings a crisp winter chill, with temperatures ranging from a maximum of 3°C (38°F) to a minimum of -23°C (-9°F). The average temperature hovers around -4°C (25°F), creating a picturesque yet frosty landscape. This month sees considerable precipitation, totaling 73 mm (2.9 in) across 16 days, while humidity peaks at a remarkable 98%, adding to the wintry atmosphere. As snow blankets the region, Joensuu transforms into a serene winter wonderland, inviting both locals and visitors to embrace the beauty of the season.
In December, Joensuu, Finland, experiences a definitive embrace of winter, with temperatures reflecting the season's chill. The month typically sees minimums dipping to -23°C (-9°F), while averages hover around -4°C (25°F), providing a stark contrast to the milder post-summer months. The maximum temperature reaches a modest 3°C (38°F), marking a clear transition from the freezing grips of November, which had seen slightly warmer readings. As the year draws to a close, Joensuu’s December showcases the genuine essence of winter, setting the stage for snow-covered landscapes and frosty atmospheres, inviting those who revel in the cold to indulge in the beauty of this Nordic wonderland.
In December, Joensuu experiences a notable shift in its precipitation patterns as winter sets in, recording 73 mm (2.9 in) of moisture across 16 days. This marks a slight increase from November's 64 mm, reinforcing the trend of rising precipitation towards the end of the year. As temperatures drop, snowfall becomes more prevalent, contributing to the total precipitation and transforming the landscape into a winter wonderland. Interestingly, December mirrors the wetter months of July and August in terms of precipitation days, highlighting a substantial elongation of moisture delivery in the colder season. The consistent occurrence of precipitation during this month sets a cozy, snow-covered scene that characterizes Joensuu's enchanting winter atmosphere.
In December, Joensuu experiences a significant leap in humidity, rising back to a notable 98%—a level reminiscent of the deep winter months of January and February. This spike follows a gradual decline throughout the warmer months; from the relative comfort of 75% in June to 87% in April, we see a steady decrease as summer gives way to autumn's crisp embrace. However, as the calendar turns towards the end of the year, the humidity surges again, signaling the return of cold, moist air typical of Finnish winters. This cyclical pattern reflects Joensuu's distinctive climate, where humidity can be high as the city prepares for the snowy landscapes that characterize its winter months.
In December, Joensuu, Finland experiences a low UV Index of 1, similar to the preceding winter months. This low exposure category allows residents and visitors to enjoy outdoor activities without the worry of sunburn, with a safe burn time of 45 minutes before needing protection. As the year progresses, UV levels typically rise from January through August, reaching a peak of 6 during the summer months, showcasing a clear seasonal trend. Following this peak, the UV Index gradually decreases as autumn approaches, returning to its winter lows by December. For ongoing UV readings and safety tips, visit Joensuu UV Index.
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Nestled in the heart of Finland, Joensuu experiences a dramatic shift in sunlight throughout the year, particularly in December, when the city sees a mere 25 hours of sunshine. This stark contrast highlights a trend prominently observed in the preceding months; as winter descends, daylight dwindles sharply from the 60 hours of sunlight in November, plunging into the darkest period of the year. However, the story doesn’t end there—Joensuu basks in a generous 493 hours of daylight during the brilliant summer months of June, tapering off in August and leading into the autumn months, where sunlight begins to diminish substantially. This rhythmic ebb and flow of sunlight not only shapes daily life but also provides an alluring backdrop for the snow-laden beauty of a Finnish winter, inviting both contemplation and a sense of seasonal wonder.
In Joensuu, Finland, the likelihood of basking in sunny weather diminishes as winter sets in, with December offering a modest 8% chance of sunshine. This trend reflects a dramatic shift from the brighter days of late spring and early summer, where the peak months of June and July boast over 50% visibility of the sun. As the year progresses, the chances decline significantly, hitting lows of just 2% in January. The steady decrease in sunlight during the colder months underscores the region's long and dark winters, making those rare golden rays in December even more precious for the inhabitants.
In Joensuu, Finland, the daylight duration showcases a dramatic transformation throughout the year, with December marking the shortest days of the year at just 5 hours of daylight. As winter deepens, the trend begins to reverse from the bright, nearly 19 hours of sunlight in June, gradually declining through the summer months until it dips below 6 hours in November. Following this annual cycle, daylight starts to gradually increase again in January, as the area emerges from the grips of winter, beginning the slow revival towards the more luminous months of spring and summer, where daylight extends to a vibrant 17 hours in May. This cyclical pattern exemplifies the contrast between the long, sunlit days of summer and the crisp, dark winters that define life in this northern region.
As December sweeps into Joensuu, Finland, the wind takes on a character of its own, averaging 3.6 m/s (8 mph), offering a brisk reminder of winter's arrival. Notably, this month experiences a slight uptick from November's 3.9 m/s, showcasing a transition as the cold sets in. Throughout the year, wind speeds tend to ebb and flow, with the calmest months being July and June, where speeds dip to around 2.9 m/s (6 mph). This gentle breeze in summer contrasts sharply with the more invigorating gusts of October, which averages 4.3 m/s (10 mph). The overall trend suggests a gradual increase in wind speed as the year progresses toward winter, with December’s brisk winds echoing the season’s chill while adding a refreshing energy to the snowy landscapes.
Weather in Joensuu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Joensuu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Joensuu range from a minimum of -23°C (-9°F) to a maximum of just 3°C (38°F), with an average temperature of -4°C (25°F). The month experiences significant precipitation, with 73 mm (2.9 in) falling over 16 days and humidity levels peaking at 98%. Conversely, January is even colder, with minimum temperatures dropping to -29°C (-19°F) and an average of -6°C (21°F). Although average maximum temperatures can reach 5°C (41°F), the precipitation decreases to 48 mm (1.9 in) over 13 days, and humidity slightly rises to 99%. For more detailed information, you can visit Joensuu weather in January.
In comparing the weather between December and February, we observe notable differences in temperature and precipitation. December sees a minimum temperature of -23°C (-9°F) and an average of -4°C (25°F), with maximums reaching 3°C (38°F). This month experiences 73 mm (2.9 in) of precipitation over 16 days, contributing to a consistent humidity level of 98%. In contrast, February tends to be colder, with a minimum of -27°C (-17°F) and an average of -7°C (20°F), while still allowing maximum temperatures to climb slightly to 4°C (40°F). This month receives less precipitation at 48 mm (1.9 in) across 12 days, maintaining the same high humidity of 98%. For more details, you can check Joensuu weather in February.
In December, temperatures in Joensuu range from a chilling -23°C (-9°F) at night to a slightly warmer maximum of 3°C (38°F), with an average of -4°C (25°F). With high humidity at 98%, the air feels particularly frigid, and December experiences about 73 mm (2.9 in) of precipitation over 16 days. In contrast, March sees slightly milder conditions, with minimum temperatures dropping to -25°C (-14°F) and maximums reaching 9°C (49°F), resulting in a similar average of -3°C (26°F). March experiences less precipitation at 50 mm (2.0 in) over 12 days, and humidity is a touch lower at 95%. For more detailed weather information, check out Joensuu weather in March.
When comparing December and April weather, significant differences emerge in both temperature and precipitation. December experiences a chilling minimum of -23°C (-9°F) and a maximum of only 3°C (38°F), with an average temperature of -4°C (25°F). The month also sees high humidity at 98% and considerable precipitation over 16 days, totaling 73 mm (2.9 in). In contrast, April offers a much milder climate, with temperatures ranging from a minimum of -14°C (8°F) to a maximum of 17°C (64°F), and an average of 1°C (35°F). The month enjoys lower humidity at 87% and less precipitation, with totals around 41 mm (1.6 in) spread over just 9 days. For more detailed insights, you can check Joensuu weather in April.
In December, the weather is characterized by frigid temperatures, with averages around -4°C (25°F) and maximums only reaching 3°C (38°F). The month experiences high humidity at 98%, coupled with significant precipitation spread over 16 days, totaling 73 mm (2.9 in). In contrast, May brings a dramatic shift in climate, featuring much milder conditions with an average temperature of 8°C (47°F) and maximums soaring to 26°C (79°F). The precipitation in May is lower at 55 mm (2.2 in) and is distributed over just 11 days, with humidity dropping to a more comfortable 78%. For more insights on May’s climate, you can visit Joensuu weather in May.
December and June present stark contrasts in weather patterns. In December, temperatures are quite frigid, with minimums dropping to -23°C (-9°F) and an average temperature around -4°C (25°F). The month experiences substantial precipitation over 16 days, along with high humidity levels reaching 98%. In contrast, June brings a much milder climate, with minimum temperatures of 2°C (37°F) and an average that rises significantly to 16°C (60°F), hitting maximums of up to 31°C (87°F). This month sees less precipitation over just 11 days and a more comfortable humidity level of 75%. For more details on the weather in June, you can visit Joensuu weather in June.
December in Joensuu is characterized by frigid temperatures, with lows plunging to -23°C (-9°F) and an average of -4°C (25°F), while highs barely reach 3°C (38°F). This month sees significant humidity at 98% and experiences 73 mm (2.9 in) of precipitation over 16 days, creating a wintry landscape. In stark contrast, July brings milder weather with minimum temperatures of 7°C (45°F), an average of 17°C (63°F), and highs soaring to 31°C (88°F). Although July has slightly more precipitation at 89 mm (3.5 in) over 12 days, the humidity is notably lower at 83%. For more detailed insights, check out Joensuu weather in July.
December and August present stark contrasts in weather. December's temperatures can plummet to lows of -23°C (-9°F), with an average of -4°C (25°F) and highs reaching just 3°C (38°F), creating a bitterly cold ambiance. In contrast, August offers a mild climate, with temperatures ranging from a minimum of 7°C (45°F) to an average of 15°C (60°F) and soaring to a maximum of 29°C (85°F). While December experiences a total precipitation of 73 mm (2.9 in) over 16 days, August sees slightly higher precipitation at 99 mm (3.9 in) across the same number of days, albeit in a much warmer setting. Humidity is notably higher in December at 98%, compared to August’s 88%. For more detailed insights on the summer weather, check out Joensuu weather in August.
In December, the weather takes a stark turn, with average temperatures hovering around -4°C (25°F) and plunging to a chilling minimum of -23°C (-9°F), creating a winter wonderland that feels much colder due to the high humidity of 98%. Conversely, September offers more moderate conditions, with temperatures ranging from a pleasant 0°C (32°F) at night to a comfortable high of 22°C (72°F) during the day. While both months experience notable precipitation—73 mm (2.9 in) in December and slightly higher at 87 mm (3.4 in) in September—the days of rain are fewer in September, occurring on 14 days compared to December's 16 days. For a detailed look at September's climate, you can visit Joensuu weather in September.
In comparison to October, December in Joensuu experiences significantly colder temperatures, with averages around -4°C (25°F) compared to October's average of 5°C (41°F). While both months see similar amounts of precipitation, December's 73 mm (2.9 in) comes with a chillier atmosphere, and humidity levels remain high at 98%. In contrast, October, with its mild maximum temperature reaching up to 17°C (62°F), features slightly lower humidity at 95% and higher precipitation at 86 mm (3.4 in). For more details on October's weather, visit Joensuu weather in October.
December's weather in Joensuu is markedly colder than in November, with average temperatures plunging to around -4°C (25°F), contrasted with November's milder average of 1°C (33°F). The maximum temperature in December rarely exceeds 3°C (38°F), while November can see highs of up to 10°C (50°F). Additionally, December experiences more precipitation, totaling 73 mm (2.9 in) over 16 days, compared to November's 64 mm (2.5 in) over 13 days. Humidity also rises slightly in December, reaching 98% compared to November's 94%. For more details, you can check Joensuu weather in November.
As December envelops Joensuu, the weather transforms into a chilly embrace, markedly different from the milder months that precede it. The average temperatures dip, creating a stark contrast with the more moderate autumn conditions, while the high humidity levels intensify the cold, making the air feel even crisper. With frequent precipitation scattered over numerous days, the city often finds itself blanketed in snow, adding to its winter charm. This wintry wonderland not only alters the landscape but also invites outdoor activities that celebrate the beauty of the season. To explore more about how the climate shapes Joensuu throughout the year, visit Joensuu Climate.