Last updated: August 23, 2025
In December, the average temperature in Valtimo, Finland hovers around -5°C (23°F), with minimums dipping to a chilly -23°C (-10°F) and highs reaching 4°C (39°F). Prepare for a wet month, as precipitation totals 66 mm (2.6 in) over approximately 16 days. Additionally, expect high humidity levels at an average of 98%, adding to the cold, crisp atmosphere.
In December in Valtimo, the average temperature is -5°C (23°F), with maximums reaching 4°C (39°F) and minimums dropping as low as -23°C (-10°F). Be sure to dress warmly and prepare for cold conditions if you plan to travel during this time.
In Valtimo, in December, the precipitation amount is 66 mm (2.6 in) over a span of 16 days.
In Valtimo in December humidity is 98%. With an average temperature of -5°C (23°F), this humidity feels like an icy blanket that clings to your skin, making every breath you take feel damp and chilling, while the air becomes thick and heavy, complicating any sightseeing plans you might have.
In Valtimo 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 Valtimo.
UV Risk Categories
Weather in Valtimo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Valtimo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 48 mm (1.9 inches) | 99% | low |
| February Weather | -8°C (17°F) | 45 mm (1.8 inches) | 98% | low |
| March Weather | -4°C (25°F) | 48 mm (1.9 inches) | 95% | low |
| April Weather | 2°C (35°F) | 46 mm (1.8 inches) | 87% | moderate |
| May Weather | 8°C (47°F) | 63 mm (2.5 inches) | 78% | moderate |
| June Weather | 15°C (59°F) | 71 mm (2.8 inches) | 75% | high |
| July Weather | 16°C (62°F) | 77 mm (3.0 inches) | 83% | high |
| August Weather | 14°C (58°F) | 89 mm (3.5 inches) | 88% | moderate |
| September Weather | 9°C (48°F) | 82 mm (3.2 inches) | 92% | moderate |
| October Weather | 4°C (39°F) | 88 mm (3.5 inches) | 95% | low |
| November Weather | -1°C (30°F) | 76 mm (3.0 inches) | 94% | low |
| December Weather | -5°C (23°F) | 66 mm (2.6 inches) | 98% | low |