Last updated: August 28, 2025
In Bayan Uula Sumu, Mongolia, the average temperature in October hovers around 4°C (39°F). Be prepared for a chilly range, with minimums dipping to -11°C (12°F) and maximums peaking at 26°C (79°F). Expect light precipitation, with about 4 mm (0.1 in) falling across just 1 day, and enjoy moderate comfort with an average humidity of 47%.
In October in Bayan Uula Sumu, the average temperature is 4°C (39°F). Maximum temperatures can reach 26°C (79°F), while minimums can drop as low as -11°C (12°F). Be sure to pack layers to accommodate the wide temperature range when traveling during this month.
In Bayan Uula Sumu in October, the precipitation amount is 4 mm (0.1 in) over the course of 1 day.
In Bayan Uula Sumu in October, humidity is 47%. With an average temperature of 4°C (39°F), this humidity feels like a brisk chill that can make outdoor activities brisk yet refreshing, perfect for a scenic exploration of Bayan Uula Sumu's winter beauty, though travelers should prepare for a slight dampness in the air that might chill them quicker than expected.
In Bayan Uula Sumu in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Bayan Uula Sumu.
UV Risk Categories
Weather in Bayan Uula Sumu varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Bayan Uula Sumu, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -14°C (7°F) | 1 mm (0.1 inches) | 82% | low |
| February Weather | -10°C (14°F) | 3 mm (0.1 inches) | 68% | moderate |
| March Weather | -1°C (31°F) | 8 mm (0.3 inches) | 47% | high |
| April Weather | 8°C (46°F) | 8 mm (0.3 inches) | 45% | very high |
| May Weather | 15°C (58°F) | 9 mm (0.3 inches) | 34% | very high |
| June Weather | 20°C (69°F) | 9 mm (0.4 inches) | 35% | very high |
| July Weather | 22°C (73°F) | 25 mm (1.0 inches) | 37% | very high |
| August Weather | 20°C (68°F) | 25 mm (1.0 inches) | 42% | very high |
| September Weather | 15°C (58°F) | 11 mm (0.4 inches) | 43% | high |
| October Weather | 4°C (39°F) | 4 mm (0.1 inches) | 47% | moderate |
| November Weather | -5°C (24°F) | 3 mm (0.1 inches) | 56% | moderate |
| December Weather | -13°C (9°F) | 2 mm (0.1 inches) | 80% | low |