Last updated: August 23, 2025
In Virojoki, Finland, the average temperature in December hovers around -1°C (30°F). Expect chilly days with minimums dipping to -18°C (0°F) and a maximum of 6°C (44°F). With 81 mm (3.2 in) of precipitation over approximately 17 days, humidity levels soar to an impressive 95%. Bundle up and prepare for a damp yet cold month!
In December in Virojoki, the average temperature is -1°C (30°F), with maximums reaching 6°C (44°F) and minimums dropping as low as -18°C (0°F). Travelers should be prepared for cold conditions and pack accordingly when visiting during this time.
In Virojoki, in December, the precipitation amount is 81 mm (3.2 in), occurring over a span of 17 days.
In Virojoki in December humidity is 95%. With an average temperature of -1°C (30°F), this humidity feels like a frigid cold that seeps into your bones, making it quite uncomfortable for traveling as the dampness clings to your skin and exacerbates the chill in the air.
In Virojoki 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 Virojoki.
UV Risk Categories
Weather in Virojoki varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Virojoki, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 53 mm (2.1 inches) | 98% | low |
| February Weather | -4°C (25°F) | 56 mm (2.2 inches) | 96% | low |
| March Weather | -1°C (30°F) | 49 mm (1.9 inches) | 93% | moderate |
| April Weather | 3°C (38°F) | 43 mm (1.7 inches) | 88% | moderate |
| May Weather | 10°C (50°F) | 46 mm (1.8 inches) | 77% | moderate |
| June Weather | 16°C (61°F) | 44 mm (1.7 inches) | 75% | high |
| July Weather | 18°C (65°F) | 66 mm (2.6 inches) | 82% | high |
| August Weather | 17°C (62°F) | 93 mm (3.7 inches) | 84% | moderate |
| September Weather | 12°C (54°F) | 69 mm (2.7 inches) | 90% | moderate |
| October Weather | 7°C (45°F) | 85 mm (3.3 inches) | 93% | low |
| November Weather | 3°C (38°F) | 64 mm (2.5 inches) | 93% | low |
| December Weather | -1°C (30°F) | 81 mm (3.2 inches) | 95% | low |