Last updated: August 23, 2025
In December, the average temperature in Tuusniemi, Finland hovers around -4°C (25°F). During this chilly month, temperatures can plunge to a frigid -23°C (-10°F), while occasionally peaking at a milder 3°C (38°F). Expect 71 mm (2.8 in) of precipitation spread across 16 days, paired with an impressive average humidity of 98%. Stay warm and prepared for a wintry experience!
In December in Tuusniemi, the average temperature is -4°C (25°F), with maximums reaching up to 3°C (38°F) and minimums dipping as low as -23°C (-10°F). Travelers should be prepared for chilly conditions and pack accordingly for their visit.
In Tuusniemi in December, the precipitation amount is 71 mm (2.8 in) over the course of 16 days.
In Tuusniemi in December humidity is 98%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making every step feel more laborious as you navigate through the frosty air, dampening your spirits as well as your clothes.
In Tuusniemi in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Tuusniemi.
UV Risk Categories
Weather in Tuusniemi varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tuusniemi, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 50 mm (1.9 inches) | 99% | low |
| February Weather | -7°C (20°F) | 45 mm (1.8 inches) | 98% | low |
| March Weather | -3°C (26°F) | 47 mm (1.9 inches) | 95% | moderate |
| April Weather | 2°C (35°F) | 42 mm (1.7 inches) | 87% | moderate |
| May Weather | 8°C (47°F) | 63 mm (2.5 inches) | 78% | moderate |
| June Weather | 15°C (60°F) | 73 mm (2.9 inches) | 75% | high |
| July Weather | 17°C (63°F) | 83 mm (3.3 inches) | 83% | high |
| August Weather | 15°C (60°F) | 94 mm (3.7 inches) | 88% | moderate |
| September Weather | 10°C (50°F) | 88 mm (3.5 inches) | 92% | moderate |
| October Weather | 5°C (41°F) | 86 mm (3.4 inches) | 95% | low |
| November Weather | 0°C (33°F) | 72 mm (2.9 inches) | 94% | low |
| December Weather | -4°C (25°F) | 71 mm (2.8 inches) | 98% | low |