Last updated: August 28, 2025
In Ulaan-Uul, Mongolia, the average temperature in December hovers around -15°C (6°F). However, brace yourself for the extremes: temperatures can plummet to a chilling -33°C (-27°F), while peaks may reach a mild 8°C (46°F). With only 2 mm (0.1 in) of precipitation spread over 0 days, the weather remains notably dry. Expect an average humidity of 73% to accompany this frigid climate.
In December in Ulaan-Uul, the average temperature is -15°C (6°F). Maximums can reach 8°C (46°F), while minimums can drop as low as -33°C (-27°F). It's advisable to bundle up and prepare for extreme cold if you're planning to travel during this time.
In Ulaan-Uul in December, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.
In Ulaan-Uul in December humidity is 73%. With an average temperature of -15°C (6°F), this humidity feels like a biting chill that seeps through layers of clothing, making travel uncomfortable and forcing you to seek warmth at every opportunity.
In Ulaan-Uul 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 Ulaan-Uul, you can visit Hourly UV Index in Ulaan-Uul.
UV Risk Categories
Weather in Ulaan-Uul varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ulaan-Uul, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -16°C (4°F) | 1 mm (0.0 inches) | 82% | low |
| February Weather | -12°C (11°F) | 4 mm (0.2 inches) | 69% | moderate |
| March Weather | -1°C (31°F) | 6 mm (0.2 inches) | 45% | high |
| April Weather | 8°C (46°F) | 9 mm (0.4 inches) | 47% | high |
| May Weather | 15°C (59°F) | 12 mm (0.5 inches) | 40% | very high |
| June Weather | 21°C (71°F) | 14 mm (0.5 inches) | 45% | very high |
| July Weather | 24°C (76°F) | 62 mm (2.5 inches) | 48% | very high |
| August Weather | 20°C (69°F) | 46 mm (1.8 inches) | 57% | very high |
| September Weather | 16°C (60°F) | 18 mm (0.7 inches) | 54% | high |
| October Weather | 5°C (41°F) | 12 mm (0.5 inches) | 57% | moderate |
| November Weather | -5°C (23°F) | 3 mm (0.1 inches) | 53% | moderate |
| December Weather | -15°C (6°F) | 2 mm (0.1 inches) | 73% | low |