Weather in Ulaanbaatar in October 2025
Average weather
Average temperature in Ulaanbaatar in October
Going from a maximum of +17°C during the day to a minimum of -6°C during the night, the temperature in October averages around +12°C.
The average maximum temperature goes down 52% by the end of the month, compared with the beginning of the month, from +16°C to +4°C.
Is Ulaanbaatar warm or cold in October?
Ulaanbaatar is typically cool in October.
Maximum temperatures go down compared to the previous month from +16°C to +8°C. The minimum temperature also goes down from +4°C to -5°C.
Pack a sweater and a jacket as there will be cooler temperatures.
Take a look at how October is compared to other months in Ulaanbaatar:
Climate in Ulaanbaatar in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +16°C | +8°C | -5°C | ||||
| Min. temperature | ||||||
| -13°C | -24°C | -39°C | ||||
| Max. temperature | ||||||
| +31°C | +23°C | +13°C | ||||
| Rainfall | ||||||
| 34 mm | 7 mm | 0 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 1 m/s | ||||
| Humidity | ||||||
| 62% | 63% | 71% | ||||
| Air pressure | ||||||
| 1015 HPa | 1020 HPa | 1022 HPa | ||||
| Sunny days | ||||||
| 9 | 13 | 14 | ||||
| Cloudy days | ||||||
| 8 | 10 | 12 | ||||
| Rainy days | ||||||
| 11 | 3 | 0 | ||||
| Snowy days | ||||||
| 1 | 5 | 4 | ||||
October weather is still as good as in September. It’s getting colder in October. From +16°C in the day, the average maximum temperature lowers to +8°C. As October arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 34 mm to 7 mm. Humidity rises from 62% to 63%. The average wind speed doesn’t change much during October, staying around 2 m/s. The good news is there are likely to be more sunny days in October, from 9 to 13.
November brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Ulaanbaatar is gradually increasing during October, going from 1 m/s to 1 m/s over the course of the month.
Rain
Snow
October is one of the snowiest months in Ulaanbaatar.
Here’s how October is compared with other months in the amount of snow, total mm:
How was the weather last October in Ulaanbaatar?
Climate Change over Years
The climate in Ulaanbaatar in October has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+4°C) and the highest in 2007 (+9°C). The driest year was 2017 with only 192 mm of rainfall, and the wettest year was 1984 with 432 mm.
FAQ
Is October a good time to visit Ulaanbaatar?
Can you sunbathe in Ulaanbaatar in October?
Is Ulaanbaatar rainy in October?
Is it sunny in Ulaanbaatar in October?
Monthly weather in Ulaanbaatar
Source of the data
For this page, we’ve looked at the typical weather in Ulaanbaatar, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.