Last updated: August 27, 2025
In December, the average temperature in Bulach, Switzerland is a brisk 3°C (37°F). Expect chilly days with minimums dropping to -8°C (18°F), while the mercury can rise as high as 14°C (57°F). During this month, you'll likely encounter about 124 mm (4.9 in) of precipitation spread over 18 days, contributing to an average humidity level of a cozy 90%.
In December in Bulach, the average temperature is 3°C (37°F), with maximums reaching up to 14°C (57°F) and minimums dropping as low as -8°C (18°F). This unpredictable weather makes it essential for travelers to dress in layers and be prepared for varying conditions.
In Bulach in December, the precipitation amount is 124 mm (4.9 in) over a span of 18 days.
In Bulach in December, humidity is 90%. With an average temperature of 3°C (37°F), this humidity feels like a heavy blanket wrapped around you, making travel feel cumbersome and draining, as the dampness clings to your skin and the cold bites through your layers.
In Bulach 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 Bulach.
UV Risk Categories
Weather in Bulach varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bulach, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 95 mm (3.7 inches) | 92% | low |
| February Weather | 3°C (39°F) | 75 mm (3.0 inches) | 89% | moderate |
| March Weather | 6°C (43°F) | 86 mm (3.4 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 59 mm (2.3 inches) | 84% | high |
| May Weather | 13°C (56°F) | 123 mm (4.8 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 128 mm (5.0 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 99 mm (3.9 inches) | 83% | very high |
| August Weather | 20°C (67°F) | 120 mm (4.7 inches) | 80% | very high |
| September Weather | 15°C (60°F) | 80 mm (3.2 inches) | 83% | high |
| October Weather | 11°C (51°F) | 93 mm (3.6 inches) | 90% | moderate |
| November Weather | 5°C (41°F) | 65 mm (2.6 inches) | 88% | low |
| December Weather | 3°C (37°F) | 124 mm (4.9 inches) | 90% | low |