Last updated: August 21, 2025
In December, Tuusula, Finland experiences a striking winter climate defined by temperatures that range from a maximum of 6°C (43°F) to a chilling minimum of -19°C (-3°F), making it a true winter wonderland. The average temperature hovers around a brisk -2°C (29°F). This month witnesses 71 mm (2.8 in) of precipitation, spread across approximately 14 days, resulting in a moisture-rich atmosphere with humidity levels soaring to an impressive 95%. Visitors can expect a blend of frosty air and periodic snowfall, setting the stage for enchanting winter scenery.
In December, Tuusula, Finland, ushers in the chill of winter with temperatures that dive to a minimum of -19°C (-3°F), while the average temperature hovers around -2°C (29°F). This month marks a noticeable dip compared to the milder conditions seen in November, illustrating the gradual transition into the depths of winter. The maximum temperature peaks at 6°C (43°F), offering fleeting moments of warmth amidst the frosty backdrop. As December progresses, the crisp air and snow-covered landscapes create a quintessential Finnish winter scene, perfect for those embracing the season's magic.
In December, Tuusula experiences a significant increase in precipitation, with 71 mm (2.8 in) of rain recorded, marking it as one of the wetter months of the year. This uptick aligns with a rise in precipitation days, totaling 14, suggesting that the month brings a mix of drizzly and snowy weather as winter sets in. Compared to November's 54 mm (2.1 in) over 10 days, December not only delivers more moisture but also extends the wet weather into the heart of winter. Overall, a clear trend emerges as the year draws to a close, showcasing Tuusula's transition into a season characterized by increased precipitation and more frequent weather events.
In Tuusula, Finland, December sees a humidity level of 95%, maintaining a trend of high moisture that characterizes the winter months. This month follows a slight drop from November's 94%, yet remains consistent with the preceding months from October (93%) and September (90%). While the height of summer in June and July experiences a relative low at 75%, humidity steadily climbs as the year transitions into autumn and winter. This seasonal pattern reveals how humidity in Tuusula spikes in the colder months, creating a distinctive chill in the air that resonates with the region's winter charm.
In Tuusula, Finland, the UV Index trends through the year showcase a clear seasonal pattern. The winter months of January, February, and December consistently exhibit a low UV Index of 1, indicating minimal sun exposure risk with a burn time of about 45 minutes. As spring unfolds, the UV Index gradually rises, reaching moderate levels of 3 in March and peaking at 5 in May. The summer months of June and July see higher UV readings of 7, signaling a shift to the high exposure category with a reduced burn time of 25 minutes. As autumn settles in, the index declines, landing back at 4 in September and tapering off to low levels by October and November. This annual cycle highlights the importance of adjusting sun protection measures throughout the year. For further insights, visit Tuusula UV Index.
UV Risk Categories
In December, as Tuusula embraces the heart of winter, sunlight becomes a rare treasure, with only 58 hours gracing the sky. This stark contrast to the sun-drenched summer months reveals a fascinating trend, where daylight peaks in June with nearly 493 hours of sunshine, gradually tapering off into the darker parts of the year. As the months pass, the average sunlight dwindles from a promising 451 hours in May to a mere whisper of daylight in December. This cyclical dance of light and shadow highlights the region's transformation through the seasons, urging locals and visitors alike to cherish even the fleeting rays of sunshine amidst the serene, snow-covered landscapes.
When it comes to December in Tuusula, Finland, the likelihood of enjoying sunny weather is relatively low, with a sun chance of just 12%. This marks a significant drop as the year progresses, particularly after the summer months of July and June, where sunshine peaks at 56% and 52%, respectively. As autumn sets in, the chances dwindle further, evidenced by November's historic 17% sunny likelihood. With December's short days and often overcast skies, it's clear that those hoping for sun should manage their expectations, as the winter months herald a retreat from the vibrant sunshine enjoyed earlier in the year.
In Tuusula, Finland, the daylight duration experiences a significant fluctuation throughout the year, reflecting the stark contrasts of the Nordic seasons. As we transition into December, the daylight diminishes to a mere 5 hours, marking the shortest days of the year. This decline begins as early as November with 7 hours of light, following a gradual taper from October's 10 hours. The trend becomes more pronounced as we compare the winter months to the peak of summer, where daylight stretches to an impressive 18 hours from late June through July. As the year unfolds, the increasing daylight from the depths of winter in December to the more lively spring months signifies a gradual rebirth, culminating with 14 hours in April and soaring to 17 hours in May. This dance of light not only shapes the rhythm of daily life in Tuusula but also highlights the rich, seasonal tapestry characteristic of Finland.
As December settles over Tuusula, the breeze carries with it a gentle crispness, with an average wind speed of 3.5 m/s (8 mph). This month sees a slight uptick compared to the calmer winds of mid-summer, which reached a low of 2.7 m/s (6 mph) in June. The winds start to pick up momentum from October onward, peaking at 4.3 m/s (10 mph), hinting at a transition towards the brisk conditions of winter. By December, the winds maintain a pleasant steadiness, encouraging both cozy indoor gatherings and invigorating outdoor adventures. As the year draws to a close, this moderate wind serves as a reminder of the shifting seasons in Finland, offering a perfect backdrop to the picturesque winter landscape.
Weather in Tuusula varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tuusula, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures range from a chilly minimum of -19°C (-3°F) to a mild maximum of 6°C (43°F), with an average of -2°C (29°F). The month sees about 71 mm (2.8 in) of precipitation over 14 days, with a high humidity level of 95%. In contrast, January is even colder, with minimum temperatures dropping to -25°C (-13°F) and an average temperature of -3°C (26°F). The maximum temperature is slightly higher at 8°C (47°F), but the overall precipitation decreases to 52 mm (2.1 in) over 11 days, while humidity rises to 97%. For a detailed look at January's weather, you can visit Tuusula weather in January.
In December, temperatures vary from a minimum of -19°C (-3°F) to a maximum of 6°C (43°F), with an average temperature of -2°C (29°F). The month is marked by higher precipitation, totaling 71 mm (2.8 in) over 14 days, resulting in a distinctly humid atmosphere with 95% humidity. In contrast, February showcases even colder temperatures, reaching a chilling minimum of -25°C (-13°F) and an average of -4°C (25°F), with a maximum of 7°C (45°F). February experiences less precipitation, totaling 46 mm (1.8 in) across just 9 days, while maintaining the same high humidity of 95%. For more details on weather conditions in February, visit Tuusula weather in February.
December and March present notably different weather patterns, despite both months being part of the winter season. In December, the average temperature hovers around -2°C (29°F), with a maximum of 6°C (43°F) and a minimum of -19°C (-3°F). It experiences a higher humidity level at 95% and sees approximately 71 mm (2.8 in) of precipitation over 14 days. In contrast, March showcases slightly milder conditions with an average temperature of -1°C (30°F) and a maximum of 11°C (53°F), although it can dip to a lower minimum of -24°C (-12°F). The precipitation drops to 49 mm (1.9 in) over 12 days, accompanied by a humidity of 93%. For more detailed insights into the weather during this time, you can check Tuusula weather in March.
December and April present contrasting weather patterns. In December, temperatures can plummet to a minimum of -19°C (-3°F), with an average hovering around -2°C (29°F) and a maximum of 6°C (43°F). The month is characterized by high humidity at 95% and considerable precipitation, averaging 71 mm (2.8 in) over 14 days. In contrast, April brings milder conditions, with temperatures ranging from a minimum of -16°C (3°F) to a comfortable maximum of 21°C (70°F), providing a notable average of 4°C (39°F). Precipitation in April is lower at 46 mm (1.8 in) across 10 days, along with a decrease in humidity to 86%. For a closer look at what to expect, check out Tuusula weather in April.
December and May present stark contrasts in weather. In December, temperatures plunge to a minimum of -19°C (-3°F) with an average of -2°C (29°F) and can reach a maximum of 6°C (43°F). This month sees considerable precipitation, averaging 71 mm (2.8 in) over 14 days, along with high humidity levels around 95%. In contrast, May experiences a significant warming trend, with minimum temperatures of -5°C (24°F), an average of 10°C (51°F), and maximum temperatures soaring to 29°C (84°F). Precipitation in May is lower at 55 mm (2.2 in) over just 10 days, and humidity is more moderate at 75%. These differences highlight the transition from the chilly depths of winter to the balmy beginnings of summer. For more detailed insights, you can explore Tuusula weather in May.
December and June present starkly contrasting weather conditions. In December, temperatures plunge with a minimum of -19°C (-3°F) and an average of -2°C (29°F), while the maximum only reaches 6°C (43°F). The month is characterized by high humidity at 95% and significant rainfall, with precipitation occurring on 14 days and totaling 71 mm (2.8 in). In contrast, June offers a much milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 31°C (87°F), and an average temperature of 16°C (62°F). The humidity is considerably lower at 75%, and while rainfall is still present, it occurs on only 10 days and totals 61 mm (2.4 in). This highlights the vibrant transition from the cold, snowy days of December to the warm, pleasant atmosphere of June. For more detailed insights, you can check Tuusula weather in June.
December and July present stark contrasts in weather patterns. In December, temperatures can plummet to a minimum of -19°C (-3°F), with an average of -2°C (29°F) and a maximum of 6°C (43°F). The month experiences higher humidity at 95% and significant precipitation over 14 days, totaling 71 mm (2.8 in). In contrast, July boasts a much milder climate, with temperatures ranging from a minimum of 7°C (44°F) to an average of 18°C (64°F) and peaking at 32°C (89°F). Although July sees slightly more precipitation at 82 mm (3.2 in) over just 12 days, the humidity is notably lower at 80%. For more details on July weather in this region, you can check Tuusula weather in July.
In December, the weather in Tuusula is characterized by frigid temperatures, with a minimum of -19°C (-3°F) and an average of -2°C (29°F), reaching a maximum of 6°C (43°F). This month sees significant precipitation, with 71 mm (2.8 in) falling over 14 days, accompanied by high humidity at 95%. In contrast, August brings a milder climate, where temperatures range from a minimum of 6°C (43°F) to an average of 16°C (61°F), peaking at 30°C (86°F). While precipitation is slightly higher at 75 mm (3.0 in) over 12 days, the humidity is lower at 83%. For a detailed look at weather patterns during this month, check out Tuusula weather in August.
December and September present contrasting weather experiences. In December, temperatures can plummet to a minimum of -19°C (-3°F), with an average of -2°C (29°F) and a maximum of 6°C (43°F), creating a frigid environment. This month sees about 71 mm of precipitation over 14 days, with high humidity levels of 95%. In contrast, September enjoys much milder conditions, starting at a minimum of -2°C (28°F) and reaching an average of 11°C (53°F) during the day, peaking at 24°C (75°F). Precipitation in September is slightly lower at 66 mm over 12 days, accompanied by a humidity of 90%. For a more detailed look at September weather, check Tuusula weather in September.
December weather is characterized by significantly colder temperatures, with average lows dropping to -19°C (-3°F) and highs only reaching 6°C (43°F). In contrast, October remains milder, displaying a wider temperature range that begins with a minimum of -5°C (23°F) and peaks at 17°C (63°F). While December experiences a little less precipitation at 71 mm (2.8 in) over 14 days, October sees slightly higher precipitation at 81 mm (3.2 in) spread across 16 days, accompanied by a similar level of humidity. For more details on October weather patterns, you can check out Tuusula weather in October.
When comparing the weather in December to that of November, December tends to be significantly colder, with average temperatures around -2°C (29°F) compared to November's more moderate 2°C (37°F). The minimum temperatures in December can drop as low as -19°C (-3°F), whereas the lowest point in November is milder at -9°C (16°F). Additionally, December sees slightly more precipitation (71 mm or 2.8 in) over a greater number of days (14) compared to November's 54 mm (2.1 in) over 10 days. Despite both months having high humidity levels (95% in December and 94% in November), the colder temperatures in December make it feel much more frigid. For more detailed information about November's weather, you can visit Tuusula weather in November.
As December descends upon Tuusula, the weather transforms into a chilly tableau, with temperatures dipping significantly compared to the milder months that precede it. The typical winter palette features a crisp average of -2°C and the occasional plunge to a frigid -19°C, evoking the essence of a Nordic winter. With 71 mm of precipitation spread across 14 days, residents can expect a notable increase in snowfall, creating a picturesque landscape albeit with heightened humidity levels reaching 95%. This shift from previous months not only defines the character of December but also invites both locals and visitors to embrace the beauty of winter. For more insights into the region's climate patterns, explore Tuusula Climate.