Last updated: August 28, 2025
In Bayan, Mongolia, the average temperature in January hovers around -21°C (-6°F), with extremes ranging from a chilling -39°C (-38°F) to a slightly warmer -1°C (30°F). This period sees minimal precipitation, averaging just 2 mm (0.1 in) over 0 days, while the air is characterized by high humidity, averaging a brisk 92%.
In January in Bayan, the average temperature is -21°C (-6°F). The maximum can reach -1°C (30°F), while the minimum can drop to as low as -39°C (-38°F). Be prepared for extremely cold weather and ensure you dress accordingly for your travels in this chilly destination.
In Bayan in January, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.
In Bayan in January humidity is 92%. With an average temperature of -21°C (-6°F), this humidity feels like an icy fog enveloping you, making outdoor travel incredibly challenging as every breath pulls in a biting chill, and the air feels heavy and damp against your skin.
In Bayan in January, 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, you can visit Hourly UV Index in Bayan.
UV Risk Categories
Weather in Bayan varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Bayan, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -21°C (-6°F) | 2 mm (0.1 inches) | 92% | low |
February Weather | -18°C (0°F) | 5 mm (0.2 inches) | 86% | moderate |
March Weather | -5°C (23°F) | 6 mm (0.2 inches) | 72% | moderate |
April Weather | 4°C (39°F) | 15 mm (0.6 inches) | 67% | high |
May Weather | 11°C (52°F) | 34 mm (1.4 inches) | 69% | very high |
June Weather | 17°C (63°F) | 62 mm (2.4 inches) | 67% | very high |
July Weather | 19°C (67°F) | 112 mm (4.4 inches) | 79% | very high |
August Weather | 16°C (61°F) | 84 mm (3.3 inches) | 79% | very high |
September Weather | 11°C (52°F) | 43 mm (1.7 inches) | 82% | high |
October Weather | 1°C (33°F) | 20 mm (0.8 inches) | 79% | moderate |
November Weather | -10°C (14°F) | 7 mm (0.3 inches) | 81% | moderate |
December Weather | -19°C (-1°F) | 4 mm (0.1 inches) | 90% | low |