Last updated: August 28, 2025
In December, the average temperature in Tsagaan-Olom, Mongolia hovers around -17°C (2°F), with chilling lows dipping to -34°C (-29°F), while highs can reach up to 2°C (35°F). Expect a rather dry spell with a scant 3 mm (0.1 in) of precipitation spread across 0 days. Coupled with an average humidity of 96%, the air feels crisp and biting—perfect for bundling up!
In December in Tsagaan-Olom, the average temperature is -17°C (2°F). The maximum can reach 2°C (35°F) and the minimum can be as low as -34°C (-29°F). Be prepared for extremely cold weather and pack accordingly if you plan to travel during this time.
In Tsagaan-Olom in December, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.
In Tsagaan-Olom in December humidity is 96%. With an average temperature of -17°C (2°F), this humidity feels like a piercing chill that seeps into your bones, making outdoor activities uncomfortable and challenging for travelers.
In Tsagaan-Olom 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 Tsagaan-Olom, you can visit Hourly UV Index in Tsagaan-Olom.
UV Risk Categories
Weather in Tsagaan-Olom varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tsagaan-Olom, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -18°C (0°F) | 3 mm (0.1 inches) | 98% | low |
| February Weather | -13°C (9°F) | 6 mm (0.2 inches) | 94% | moderate |
| March Weather | -4°C (26°F) | 5 mm (0.2 inches) | 88% | high |
| April Weather | 5°C (42°F) | 10 mm (0.4 inches) | 74% | very high |
| May Weather | 12°C (53°F) | 9 mm (0.4 inches) | 50% | very high |
| June Weather | 18°C (64°F) | 13 mm (0.5 inches) | 48% | very high |
| July Weather | 20°C (67°F) | 22 mm (0.9 inches) | 49% | very high |
| August Weather | 17°C (62°F) | 42 mm (1.7 inches) | 54% | very high |
| September Weather | 11°C (52°F) | 12 mm (0.5 inches) | 59% | high |
| October Weather | 1°C (34°F) | 8 mm (0.3 inches) | 67% | moderate |
| November Weather | -8°C (18°F) | 6 mm (0.2 inches) | 86% | moderate |
| December Weather | -17°C (2°F) | 3 mm (0.1 inches) | 96% | low |