Last updated: August 27, 2025
In Jaernforsen, Sweden, the average temperature in December hovers around 1°C (34°F). Expect chilly conditions, with temperatures dipping as low as -16°C (3°F) and occasionally rising to a maximum of 9°C (49°F). The month brings about 53 mm (2.1 in) of precipitation spread over 14 days, contributing to an overall average humidity of 88%. Be prepared for a damp and cool atmosphere!
In December in Jaernforsen, the average temperature is 1°C (34°F). The maximum can reach 9°C (49°F), and the minimum can be as low as -16°C (3°F). Travelers should be prepared for chilly conditions and dress warmly during this time of year.
In Jaernforsen in December, the precipitation amount is 53 mm (2.1 in) over a period of 14 days.
In Jaernforsen in December humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.
In Jaernforsen 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 Jaernforsen.
UV Risk Categories
Weather in Jaernforsen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jaernforsen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 38 mm (1.5 inches) | 90% | low |
| February Weather | 0°C (32°F) | 44 mm (1.7 inches) | 89% | low |
| March Weather | 2°C (35°F) | 47 mm (1.9 inches) | 88% | moderate |
| April Weather | 5°C (42°F) | 30 mm (1.2 inches) | 82% | moderate |
| May Weather | 11°C (51°F) | 56 mm (2.2 inches) | 72% | high |
| June Weather | 16°C (62°F) | 50 mm (2.0 inches) | 68% | high |
| July Weather | 17°C (63°F) | 70 mm (2.8 inches) | 68% | high |
| August Weather | 16°C (61°F) | 71 mm (2.8 inches) | 73% | high |
| September Weather | 12°C (55°F) | 66 mm (2.6 inches) | 81% | moderate |
| October Weather | 8°C (47°F) | 68 mm (2.7 inches) | 87% | low |
| November Weather | 4°C (40°F) | 46 mm (1.8 inches) | 89% | low |
| December Weather | 1°C (34°F) | 53 mm (2.1 inches) | 88% | low |