Last updated: August 28, 2025
October in Ulan Bator, Mongolia, is characterized by a striking temperature range, with maximum highs reaching 22°C (72°F) and minimum lows dipping to a chilly -16°C (4°F). The month boasts an average temperature hovering around -1°C (30°F), reflecting the transition into winter. Residents can expect a moderate amount of precipitation, with a total of 21 mm (0.8 in) falling across approximately 4 days. Coupled with a humidity level of 65%, this October weather presents a crisp atmosphere, perfect for enjoying the stunning autumn scenery that Ulan Bator has to offer.
In October, Ulan Bator, Mongolia, experiences a notable transition as temperatures begin to dip, marking the shift into the colder months. With minimums averaging -16°C (4°F) and maximums reaching a relatively mild 22°C (72°F), the city shows a stark departure from the warmth of summer. The average temperature hovers around -1°C (30°F), showcasing the autumn chill that prevails. As the month progresses, residents can expect crisp air and a scenic landscape transforming with the fall colors, all while preparing for the frigid winter that lies ahead. This blend of cool yet invigorating weather creates a unique atmosphere, inviting both residents and visitors to embrace the beauty of Mongolian autumn.
October in Ulan Bator marks a noticeable shift in precipitation as the city transitions into the colder months. With an average precipitation of 21 mm (0.8 in) over 4 days, October experiences a significant decrease compared to the summer's wettest months, yet still registers a respectable amount of rain. This transitional month serves as a reminder of the impending winter, as it follows the particularly lush September, which recorded 51 mm (2.0 in) over 8 days. As the landscape prepares for a long winter, these dwindling precipitation levels signal the shift from vibrant autumnal hues to the stark, serene whiteness of snow.
In October, Ulan Bator experiences a notable shift in humidity, hovering around 65%, which is consistent with the levels seen in September. This marks a gradual increase from the drier months leading up to autumn, where May recorded the lowest humidity at 50%. As the city transitions into winter, a subtle upward trend in moisture content can be observed, rising to 67% in November before reaching a peak in December at 89%. This progression underscores the stark contrast between the crispness of the early fall and the damp chill of winter, providing a unique blend of seasonal character in this vibrant capital.
As October unfolds in Ulan Bator, Mongolia, the UV Index drops to a moderate level of 4, reflecting a shift from the intense summer months when values peaked at 9. This seasonal transition leads to a more balanced exposure, allowing residents and visitors about 30 minutes of safe sun exposure without significant risk of skin damage. Following the high average in the summer, where sunscreen application became a must, October offers a refreshing reprieve, maintaining a cautious yet manageable sun awareness. This month serves as a reminder to adapt to changing UV conditions as autumn settles in. For more detailed information, check out Ulan Bator UV Index.
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In October, Ulan Bator enjoys a respectable 294 hours of sunshine, marking a gentle decline from the summer's exuberance but still a vibrant time for outdoor activities. The sunny days of October reflect a transition from the peak sunlight of May and June, which saw a remarkable 376 and 369 hours respectively. As autumn sets in, the city's sunshine hours gradually taper off from the previous month, yet remain significantly brighter than the bleak winter months ahead, such as January with just 203 hours. This gradual shift in daylight serves as a beautiful reminder of nature's cycles, while the crisp air invites both residents and visitors to bask in the city's picturesque fall scenery before the winter chill takes hold.
As the autumn season unfolds, Ulan Bator experiences a notable shift toward sunnier days, with October boasting a striking 69% chance of sunshine. This is a significant increase compared to the earlier months, highlighting a delightful trend as the city transitions from the cooler, cloudier spells of summer. In fact, October stands out as one of the sunniest months of the year, allowing residents and visitors alike to soak in the vibrant landscapes against a backdrop of clear skies. Following the sunnier October, the chance of sunny weather maintains a commendable 65% into November, indicating a smooth continuation of pleasant conditions before winter's chill sets in.
As October arrives in Ulan Bator, daylight begins to wane, offering a stark contrast to the sunlit bounty of summer months. With 10 hours of daylight, October marks a transition phase, where the lingering brightness of September's 12 hours gradually diminishes, steering the city towards the shorter days of winter. This descent into darker months follows a seasonal pattern, where sunlight peaks at 15 hours during the summer, then steadily drops, reminding residents of the rhythmic dance between light and shadow. As the days shorten, Ulan Bator prepares for the cozy embrace of November's 9 hours, underscoring the city's remarkable seasonal shifts and the accompanying change in mood and lifestyle.
As October sweeps into Ulan Bator, the city experiences a gentle whisper of autumn winds, with an average speed of 2.5 m/s (6 mph). This month marks a slight dip from the higher gusts of spring, where winds peaked at 3.8 m/s (9 mph) in May, showcasing a general trend of gradual weakening as winter approaches. After a summer of softer breezes, with July recording the calmest winds at 2.3 m/s (5 mph), October offers a balanced intermediary; a transition that hints at both the chill of the forthcoming chill and the lingering warmth of the fading season. This rhythmic ebb and flow of wind speed reflects Ulan Bator’s distinctive climate, where every month tells a story of the changing seasons.
Weather in Ulan Bator varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Ulan Bator, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present stark contrasts in weather. October experiences a broader temperature range, with lows around -16°C (4°F) and highs reaching up to 22°C (72°F), providing a milder average temperature of -1°C (30°F) and some light precipitation totaling 21 mm over four days. In contrast, January is significantly colder, characterized by a bitter minimum temperature of -42°C (-44°F) and an average temperature of -22°C (-8°F), with a maximum of only -5°C (23°F). Furthermore, January sees minimal precipitation, just 2 mm, and boasts no rainy days, coupled with high humidity at 92%. For more detailed information, check out Ulan Bator weather in January.
October and February present stark contrasts in weather. In October, temperatures can range from a mild 22°C (72°F) to a chilly -16°C (4°F), with an average of -1°C (30°F). Precipitation is moderate at 21 mm (0.8 in) over four days, and humidity sits at a comfortable 65%. In contrast, February experiences much harsher conditions, with temperatures plunging down to a chilling -38°C (-36°F) and averaging around -18°C (0°F). The maximum in February barely reaches 4°C (39°F), and precipitation is minimal at just 5 mm (0.2 in) over only one day, accompanied by a higher humidity of 84%. For more detailed insights, you can check the specifics in this link: Ulan Bator weather in February.
When comparing the weather in October and March, October generally presents milder conditions with an average temperature of -1°C (30°F) and a maximum of 22°C (72°F). This month experiences slightly more precipitation, totaling 21 mm (0.8 in) over around four days, with humidity levels at a comfortable 65%. In contrast, March is colder, featuring an average temperature of -7°C (20°F) and a maximum of only 16°C (61°F). It sees less precipitation, registering just 7 mm (0.3 in) over two days, while the humidity remains relatively stable at 64%. To learn more about the specific conditions during March, visit Ulan Bator weather in March.
In October, temperatures in Ulan Bator range from a chilly minimum of -16°C (4°F) to a pleasant maximum of 22°C (72°F), with an average of -1°C (30°F). The month experiences about 21 mm (0.8 in) of precipitation over 4 days and has a humidity of 65%. In contrast, April features a slightly warmer temperature profile, with a minimum of -16°C (4°F) and a maximum of 25°C (77°F), resulting in a higher average temperature of 2°C (36°F). Additionally, April receives 15 mm (0.6 in) of precipitation over the same number of days but enjoys slightly lower humidity at 59%. For more detailed information, you can check out Ulan Bator weather in April.
October and May present distinct contrasts in weather patterns. In October, temperatures range from a chilling minimum of -16°C (4°F) to a mild maximum of 22°C (72°F), with an average around -1°C (30°F). This month experiences relatively limited precipitation, totaling 21 mm (0.8 in) over about four days, coupled with a humidity level of 65%. In contrast, May offers milder conditions, with temperatures fluctuating between a low of -8°C (18°F) and a high of 30°C (87°F), averaging around 9°C (48°F). It also sees slightly more precipitation, measuring 26 mm (1.0 in) across five days, but the humidity is lower at 50%. For those interested in more detailed information, you can refer to Ulan Bator weather in May.
When comparing the weather in October and June, notable differences emerge. October features a wider temperature range with minimums dipping to -16°C (4°F) and maximums reaching 22°C (72°F), resulting in a chilly average of -1°C (30°F). In contrast, June boasts more moderate temperatures, with minimums around -3°C (28°F) and maximums soaring to 32°C (90°F), leading to a comfortable average of 15°C (59°F). Precipitation is more frequent in June, occurring over 7 days with a total of 44 mm (1.7 in), while October sees only 21 mm (0.8 in) over 4 days. Additionally, June's humidity is slightly lower at 55% compared to October's 65%. For a closer look at what to expect, check out Ulan Bator weather in June.
When comparing the weather in October and July, there is a stark contrast in temperatures and conditions. October experiences a wide temperature range, with a minimum of -16°C (4°F) and a maximum of 22°C (72°F), resulting in an average of -1°C (30°F). Precipitation is relatively low at 21 mm (0.8 in) over 4 days, alongside a humidity level of 65%. In sharp contrast, July boasts much warmer temperatures, with lows of 5°C (41°F) and highs reaching up to 32°C (91°F), averaging around 17°C (64°F). July also sees higher precipitation at 72 mm (2.9 in) over 12 days, but with a lower humidity of 57%. For more detailed information, visit Ulan Bator weather in July.
In comparing the weather between October and August, it's evident that October experiences much cooler temperatures, with a minimum of -16°C (4°F) and an average around -1°C (30°F), while August boasts a warmer climate with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 28°C (82°F). Precipitation is also significantly higher in August, totaling 83 mm (3.3 in) over 13 days, compared to just 21 mm (0.8 in) over 4 days in October. Additionally, October has a higher humidity level at 65%, compared to 58% in August. For a more detailed look at how August weather unfolds, visit Ulan Bator weather in August.
October weather in Ulan Bator experiences a significant drop in temperature compared to September, with average temperatures decreasing from 9°C (48°F) to around -1°C (30°F). The maximum temperature in October is also notably lower, reaching only 22°C (72°F), while September peaks at 27°C (81°F). Additionally, October sees less precipitation, with 21 mm (0.8 in) over 4 days, compared to September's 51 mm (2.0 in) over 8 days. Despite the drop in temperatures, humidity remains constant at 65% for both months, illustrating the transition into the colder autumn season. For more detailed insights, visit Ulan Bator weather in September.
October and November showcase a stark contrast in weather patterns. In October, temperatures range from a chilly minimum of -16°C (4°F) to a pleasant maximum of 22°C (72°F), averaging around -1°C (30°F), while November plunges into much colder territory with minimums dipping to -35°C (-32°F) and maximums reaching only 9°C (49°F), resulting in an average of -12°C (11°F). Precipitation decreases slightly in November to 10 mm (0.4 in) over just 2 days, compared to 21 mm (0.8 in) over 4 days in October. Humidity remains fairly consistent, slightly increasing from 65% in October to 67% in November. For more details, you can check Ulan Bator weather in November.
In October, Ulan Bator experiences a much wider temperature range, with minimums dropping to -16°C (4°F) and maximums reaching a pleasant 22°C (72°F). The average temperature sits around -1°C (30°F), alongside a moderate humidity of 65% and 21 mm of precipitation over four days, making it a relatively mild transitional month. In contrast, December is characterized by significantly colder conditions, with minimum temperatures plummeting to -39°C (-38°F) and an average of -21°C (-5°F). The month sees little to no precipitation, with only 3 mm recorded and a humidity level rising to 89%. For more details on the December weather in Ulan Bator, visit Ulan Bator weather in December.
October in Ulan Bator marks a distinct transition as the warm embrace of autumn gives way to the chill of approaching winter. The average temperatures dip significantly, shifting from the milder days of September to much colder nights, offering a stark contrast that characterizes this time of year. With precarious weather patterns, including a few days of light precipitation, October's 65% humidity adds an extra layer of crispness to the air, making it feel even chillier. As day lengths shorten, the vibrant fall foliage becomes a beautiful backdrop for the city's preparation for winter. To learn more about how October fits into the larger spectrum of Ulan Bator's climate, visit Ulan Bator Climate.