Last updated: August 28, 2025
In Bayan, Mongolia, the average temperature in January hovers around a chilly -17°C (2°F). Expect extreme conditions, with minimums dropping to -36°C (-33°F) and a maximum reaching -1°C (31°F). Precipitation is minimal, averaging just 2 mm (0.1 in) over 0 days of rain. Additionally, the air is notably crisp, with an average humidity of 98%.
In January in Bayan, the average temperature is -17°C (2°F), with maximums reaching -1°C (31°F) and minimums dropping as low as -36°C (-33°F). Travelers should be prepared for extremely cold conditions and pack accordingly.
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 98%. With an average temperature of -17°C (2°F), this humidity feels like an unforgiving chill that seeps into your bones, making travel uncomfortable and uninviting as the cold, damp air captures every breath.
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 | -17°C (2°F) | 2 mm (0.1 inches) | 98% | low |
February Weather | -12°C (10°F) | 6 mm (0.2 inches) | 94% | moderate |
March Weather | -3°C (27°F) | 6 mm (0.2 inches) | 88% | moderate |
April Weather | 6°C (42°F) | 10 mm (0.4 inches) | 74% | high |
May Weather | 12°C (54°F) | 13 mm (0.5 inches) | 50% | very high |
June Weather | 18°C (64°F) | 18 mm (0.7 inches) | 48% | very high |
July Weather | 19°C (67°F) | 35 mm (1.4 inches) | 49% | very high |
August Weather | 17°C (62°F) | 58 mm (2.3 inches) | 54% | very high |
September Weather | 11°C (52°F) | 18 mm (0.7 inches) | 59% | high |
October Weather | 2°C (35°F) | 12 mm (0.5 inches) | 67% | moderate |
November Weather | -7°C (20°F) | 5 mm (0.2 inches) | 86% | moderate |
December Weather | -16°C (4°F) | 3 mm (0.1 inches) | 96% | low |