Last updated: August 23, 2025
In December, the average temperature in Outokumpu, Finland hovers around -4°C (25°F). Be prepared for chilly conditions, as temperatures can dip to a frigid -23°C (-10°F) and occasionally rise to a maximum of 3°C (38°F). With 72 mm (2.8 in) of precipitation spread over 16 days, don't forget your umbrella! The air is cool and crisp, boasting an average humidity of a staggering 98%.
In December in Outokumpu, 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 Outokumpu in December, the precipitation amount is 72 mm (2.8 in) over the course of 16 days.
In Outokumpu 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 Outokumpu 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 Outokumpu.
UV Risk Categories
Weather in Outokumpu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Outokumpu, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (21°F) | 50 mm (2.0 inches) | 99% | low |
| February Weather | -7°C (19°F) | 47 mm (1.8 inches) | 98% | low |
| March Weather | -3°C (26°F) | 50 mm (2.0 inches) | 95% | moderate |
| April Weather | 1°C (35°F) | 42 mm (1.6 inches) | 87% | moderate |
| May Weather | 8°C (47°F) | 62 mm (2.4 inches) | 78% | moderate |
| June Weather | 15°C (60°F) | 70 mm (2.8 inches) | 75% | high |
| July Weather | 17°C (63°F) | 86 mm (3.4 inches) | 83% | high |
| August Weather | 15°C (60°F) | 95 mm (3.7 inches) | 88% | moderate |
| September Weather | 10°C (50°F) | 89 mm (3.5 inches) | 92% | moderate |
| October Weather | 5°C (41°F) | 87 mm (3.4 inches) | 95% | low |
| November Weather | 0°C (33°F) | 70 mm (2.8 inches) | 94% | low |
| December Weather | -4°C (25°F) | 72 mm (2.8 inches) | 98% | low |