Ulaanbaatar Weather in October
Ulaanbaatar in October averages 7°C (45°F) during the day and -6°C (21°F) at night. Some snow/rainfall is typical for this time of year.
Rainfall in Ulaanbaatar in October
Past climate data indicates that roughly 6 days will see snow/rain, totalling around 18 mm (0.7 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Ulaanbaatar in October
In October, Ulaanbaatar sees low temperatures, with highs of 7°C (45°F). Nights drop to around -6°C (21°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At -6°C (21°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating.
Sunshine in Ulaanbaatar in October
Expect a lot of sunshine this month, with about 230 hours of sun. These sunny conditions help offset the cool temperatures, making it a pleasant month to explore outdoors.If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Ulaanbaatar.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mongolia, check out our Ulaanbaatar's climate page.
Ulaanbaatar Temperature in October
Min Temperature
-6°C (21°F)
Max Temperature
7°C (45°F)
Chance of Rain
19%
Precipitation
18 mm (0.7 in)
Rainy days
6 days
Humidity
60%
Sunshine
230 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Ulaanbaatar typically drop from around 11°C (52°F) at the start of October to approximately 3°C (37°F) by the end. Nights are very cold, with lows typically ranging from -11°C (12°F) to -3°C (27°F).
Average temperatures in October
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Ulaanbaatar in October
Browse day-by-day weather records for Ulaanbaatar spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ulaanbaatar historical weather extremes in October
Based on 28 years of weather observations in Ulaanbaatar between 1997 and 2025, these are the recorded extremes.
- The warmest day in October was on October 4, 2006, with a maximum of 23°C (73°F).
- Ulaanbaatar registered its coldest October night on October 30, 2016, with temperatures dropping to -24°C (-11°F).
Best Places in Mongolia in October
Find out more about the weather in Mongolia and which places have the best travel conditions in this month. See all of Mongolia in October →
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What to Wear in Ulaanbaatar in October
We recommend to layer up for chilly conditions in Ulaanbaatar in October. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Almost no rain is expected, so no need to bring rain gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Ulaanbaatar in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mongolia, check out our Ulaanbaatar's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ulaanbaatar climate overview or explore weather in Mongolia.
