Last updated: August 28, 2025
In Tahilt, Mongolia, the average temperature in December hovers around -15°C (6°F). While you may experience minimum chills of -31°C (-24°F), the mercury can rise to a maximum of 0°C (31°F). With a meager precipitation of just 1 mm (0.1 in) spread across 0 days, the atmosphere remains quite dry, paired with an average humidity of 90%.
In December in Tahilt, the average temperature is -15°C (6°F). Maximum temperatures can reach 0°C (31°F), while the minimum can plummet to as low as -31°C (-24°F). Travelers should be prepared for extremely cold conditions and dress in layers to stay warm.
In Tahilt in December, the precipitation amount is 1 mm (0.1 in) during 0 days, indicating a very dry period.
In Tahilt in December, humidity is 90%. With an average temperature of -15°C (6°F), this humidity feels like a frigid mist that clings to your skin, making your breaths visible in the cold air and creating a biting chill that seeps into your bones, making outdoor travel both breathless and brisk.
In Tahilt in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Tahilt, you can visit Hourly UV Index in Tahilt.
UV Risk Categories
Weather in Tahilt varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tahilt, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -16°C (4°F) | 2 mm (0.1 inches) | 91% | low |
| February Weather | -12°C (10°F) | 4 mm (0.2 inches) | 85% | moderate |
| March Weather | -4°C (25°F) | 6 mm (0.2 inches) | 61% | high |
| April Weather | 4°C (39°F) | 14 mm (0.6 inches) | 53% | very high |
| May Weather | 10°C (50°F) | 19 mm (0.8 inches) | 34% | extreme |
| June Weather | 16°C (60°F) | 24 mm (0.9 inches) | 33% | extreme |
| July Weather | 18°C (64°F) | 37 mm (1.5 inches) | 35% | extreme |
| August Weather | 16°C (61°F) | 40 mm (1.6 inches) | 39% | very high |
| September Weather | 10°C (50°F) | 12 mm (0.5 inches) | 45% | high |
| October Weather | 1°C (33°F) | 5 mm (0.2 inches) | 52% | moderate |
| November Weather | -7°C (19°F) | 4 mm (0.1 inches) | 68% | moderate |
| December Weather | -15°C (6°F) | 1 mm (0.1 inches) | 90% | low |