Last updated: August 27, 2025
In December, the average temperature in Harbo, Sweden hovers around 0°C (32°F), with a minimum reaching as low as -17°C (1°F) and a maximum of 9°C (48°F). Expect about 54 mm (2.1 in) of precipitation over 13 days, contributing to an average humidity level of 90%. Be prepared for chilly and damp conditions!
In December in Harbo, the average temperature is 0°C (32°F). Maximums can reach 9°C (48°F) and minimums can be as low as -17°C (1°F). Travelers should be prepared for cold weather and varying conditions during this time.
In Harbo in December, the precipitation amount is 54 mm (2.1 in), falling over the course of 13 days.
In Harbo in December, humidity is 90%. With an average temperature of 0°C (32°F), this humidity feels like an icy grip on your skin, making the air feel heavy and damp, which can turn traveling into a chilling experience where every step is met with a bone-cold embrace.
In Harbo 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 Harbo.
UV Risk Categories
Weather in Harbo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Harbo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 35 mm (1.4 inches) | 91% | low |
| February Weather | -2°C (29°F) | 31 mm (1.2 inches) | 89% | low |
| March Weather | 1°C (34°F) | 38 mm (1.5 inches) | 88% | moderate |
| April Weather | 5°C (41°F) | 31 mm (1.2 inches) | 82% | moderate |
| May Weather | 10°C (51°F) | 59 mm (2.3 inches) | 71% | moderate |
| June Weather | 16°C (62°F) | 64 mm (2.5 inches) | 69% | high |
| July Weather | 18°C (64°F) | 66 mm (2.6 inches) | 67% | high |
| August Weather | 16°C (62°F) | 73 mm (2.9 inches) | 72% | moderate |
| September Weather | 12°C (54°F) | 55 mm (2.2 inches) | 83% | moderate |
| October Weather | 7°C (45°F) | 75 mm (3.0 inches) | 89% | low |
| November Weather | 3°C (38°F) | 44 mm (1.7 inches) | 91% | low |
| December Weather | 0°C (32°F) | 54 mm (2.1 inches) | 90% | low |