Last updated: August 23, 2025
In December, the average temperature in Juankoski, Finland hovers around -4°C (25°F), with extremes ranging from a chilly -23°C (-9°F) to a mild 3°C (38°F). Expect about 70 mm (2.8 in) of precipitation over 16 days, contributing to a notably high average humidity of 98%.
In December in Juankoski, the average temperature is -4°C (25°F). Maximum temperatures can reach 3°C (38°F), while the minimum can dip as low as -23°C (-9°F). It's advisable to pack warm clothing and be prepared for chilly conditions if you're planning to travel during this time.
In Juankoski in December, the precipitation amount is 70 mm (2.8 in) over a period of 16 days.
In Juankoski 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 Juankoski 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 Juankoski.
UV Risk Categories
Weather in Juankoski varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Juankoski, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (21°F) | 49 mm (1.9 inches) | 99% | low |
| February Weather | -7°C (19°F) | 44 mm (1.7 inches) | 98% | low |
| March Weather | -3°C (26°F) | 45 mm (1.8 inches) | 95% | moderate |
| April Weather | 1°C (35°F) | 41 mm (1.6 inches) | 87% | moderate |
| May Weather | 8°C (46°F) | 56 mm (2.2 inches) | 78% | moderate |
| June Weather | 15°C (59°F) | 66 mm (2.6 inches) | 75% | high |
| July Weather | 17°C (63°F) | 75 mm (2.9 inches) | 83% | high |
| August Weather | 15°C (60°F) | 94 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) | 88 mm (3.5 inches) | 95% | low |
| November Weather | 1°C (33°F) | 77 mm (3.0 inches) | 94% | low |
| December Weather | -4°C (25°F) | 70 mm (2.8 inches) | 98% | low |