Last updated: August 23, 2025
In December, the average temperature in Ylitornio, Finland hovers around -7°C (20°F). Expect chilly conditions, with a minimum dipping to -30°C (-21°F) and a maximum reaching 4°C (39°F). Rain or snow is likely, with 68 mm (2.7 in) of precipitation spread over about 15 days. To top it off, the average humidity level sits at an astonishing 101%, creating an atmosphere that feels quite crisp and damp.
In December in Ylitornio, the average temperature is -7°C (20°F). The maximum can reach 4°C (39°F) and the minimum can be as low as -30°C (-21°F). Travelers should be prepared for extremely cold conditions during this time.
In Ylitornio in December, the total precipitation amount is 68 mm (2.7 in) recorded over a span of 15 days.
In Ylitornio in December humidity is 101%. With an average temperature of -7°C (20°F), this humidity feels like a frosty breath that clings to your skin, making each step feel heavier as you travel through the biting cold; the air is dense, and every gust carries the chill deeper into your bones, turning what should be a brisk adventure into a struggle against the elements.
In Ylitornio 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 Ylitornio.
UV Risk Categories
Weather in Ylitornio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ylitornio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 47 mm (1.8 inches) | 101% | low |
| February Weather | -10°C (15°F) | 42 mm (1.6 inches) | 99% | low |
| March Weather | -5°C (24°F) | 45 mm (1.8 inches) | 92% | low |
| April Weather | 1°C (33°F) | 36 mm (1.4 inches) | 86% | moderate |
| May Weather | 7°C (45°F) | 48 mm (1.9 inches) | 82% | moderate |
| June Weather | 14°C (57°F) | 65 mm (2.6 inches) | 78% | moderate |
| July Weather | 17°C (62°F) | 74 mm (2.9 inches) | 83% | moderate |
| August Weather | 14°C (57°F) | 97 mm (3.8 inches) | 87% | moderate |
| September Weather | 8°C (47°F) | 69 mm (2.7 inches) | 91% | moderate |
| October Weather | 2°C (36°F) | 93 mm (3.7 inches) | 96% | low |
| November Weather | -3°C (27°F) | 64 mm (2.5 inches) | 98% | low |
| December Weather | -7°C (20°F) | 68 mm (2.7 inches) | 101% | low |