Last updated: August 28, 2025
Average temperature in Bayan-Uhaa, Mongolia during December hovers around -21°C (-5°F). Expect a chilling range, with minimums plummeting to -39°C (-38°F) and maximums reaching -2°C (28°F). Precipitation is minimal, averaging 4 mm (0.2 in) over just 1 day, and the air is quite damp, with an average humidity of 96%.
In December in Bayan-Uhaa, the average temperature is -21°C (-5°F), with maximums reaching -2°C (28°F) and minimums plunging as low as -39°C (-38°F). Travelers should be prepared for frigid conditions and dress in layers to stay warm while exploring this winter wonderland.
In Bayan-Uhaa in December, the precipitation amount is 4 mm (0.2 in) during 1 day.
In Bayan-Uhaa in December humidity is 96%. With an average temperature of -21°C (-5°F), this humidity feels like a biting chill that makes breathing difficult, turning the air into a thick, frosty mist that clings to your skin, making any outdoor activities feel like an endurance test rather than a leisurely journey.
In Bayan-Uhaa 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 Bayan-Uhaa, you can visit Hourly UV Index in Bayan-Uhaa.
UV Risk Categories
Weather in Bayan-Uhaa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bayan-Uhaa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -23°C (-10°F) | 3 mm (0.1 inches) | 94% | low |
| February Weather | -19°C (-3°F) | 8 mm (0.3 inches) | 89% | moderate |
| March Weather | -10°C (15°F) | 12 mm (0.5 inches) | 84% | high |
| April Weather | 1°C (35°F) | 25 mm (1.0 inches) | 80% | very high |
| May Weather | 9°C (48°F) | 31 mm (1.2 inches) | 71% | very high |
| June Weather | 14°C (58°F) | 40 mm (1.6 inches) | 71% | very high |
| July Weather | 16°C (62°F) | 67 mm (2.6 inches) | 75% | very high |
| August Weather | 14°C (57°F) | 75 mm (3.0 inches) | 74% | very high |
| September Weather | 8°C (46°F) | 34 mm (1.3 inches) | 78% | high |
| October Weather | -2°C (29°F) | 20 mm (0.8 inches) | 86% | moderate |
| November Weather | -12°C (10°F) | 10 mm (0.4 inches) | 94% | low |
| December Weather | -21°C (-5°F) | 4 mm (0.2 inches) | 96% | low |