Last updated: August 27, 2025
In Horndal, Sweden, the average temperature in December hovers around -1°C (31°F). Be prepared for chilly conditions, as temperatures can drop to a frosty -21°C (-5°F) and peak at a relatively mild 9°C (48°F). Expect about 55 mm (2.2 in) of precipitation over 13 days, coupled with high humidity levels averaging 94%. Bundle up and embrace the winter!
In December in Horndal, the average temperature is -1°C (31°F). The maximum can reach 9°C (48°F), while the minimum can drop as low as -21°C (-5°F). Travelers should be prepared for a range of chilly conditions, from mild to frigid, and pack accordingly.
In Horndal in December, the precipitation amount is 55 mm (2.2 in) spread over 13 days.
In Horndal in December humidity is 94%. With an average temperature of -1°C (31°F), this humidity feels like a damp chill that seeps into your bones, making travel outdoors quite uncomfortable as the cold, heavy air clings to your skin.
In Horndal 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 Horndal.
UV Risk Categories
Weather in Horndal varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Horndal, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 35 mm (1.4 inches) | 96% | low |
| February Weather | -2°C (28°F) | 33 mm (1.3 inches) | 93% | low |
| March Weather | 1°C (34°F) | 38 mm (1.5 inches) | 91% | moderate |
| April Weather | 5°C (41°F) | 30 mm (1.2 inches) | 84% | moderate |
| May Weather | 11°C (51°F) | 60 mm (2.3 inches) | 74% | moderate |
| June Weather | 16°C (62°F) | 69 mm (2.7 inches) | 73% | high |
| July Weather | 18°C (64°F) | 63 mm (2.5 inches) | 73% | high |
| August Weather | 16°C (61°F) | 84 mm (3.3 inches) | 78% | moderate |
| September Weather | 12°C (53°F) | 55 mm (2.2 inches) | 87% | moderate |
| October Weather | 7°C (45°F) | 82 mm (3.2 inches) | 92% | low |
| November Weather | 3°C (37°F) | 49 mm (1.9 inches) | 94% | low |
| December Weather | -1°C (31°F) | 55 mm (2.2 inches) | 94% | low |