When to go · Ulaanbaatar
Ulaanbaatar in December
Avoid month. Deep cold and smog.
Key facts
- Verdict
- Avoid
- Temperature
- −13°C (9°F)9°F (−13°C) / −23°C (−9°F)−9°F (−23°C)
- average high / low
- Rain days
- 1
- Crowds
- Low
- Mongolia overall
- Prices
- Low
- Mongolia overall
Verdict
Deep cold and smog.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than December?
December is rated avoid. These months rate higher:
Weather in December
- UlaanbaatarHighs around -13 °C (9 °F), lows around -23 °C (−9 °F), rain on about 1 dayHighs around 9 °F (-13 °C), lows around −9 °F (-23 °C), rain on about 1 day
- Ulaanbaatar and the centre, Mongolia · Ulaanbaatar, Terelj, Kharkhorin, Orkhon valleysmoke haze
Coldest capital in the world: January averages about −20 °C (−4 °F). Coal and ger-stove smoke make winter air among the worst anywhere Nov–Feb. Summer is 20–28 °C (68–82 °F) by day with afternoon showers in July–August.Coldest capital in the world: January averages about −4 °F (−20 °C). Coal and ger-stove smoke make winter air among the worst anywhere Nov–Feb. Summer is 68–82 °F (20–28 °C) by day with afternoon showers in July–August.
Long winter season
Deep cold, snow and ice, quiet museums, Tsagaan Sar in Feb.
Watch: Smog, −20 to −30 °C, ice, closed camps.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Independence Day
29 December · Citywide
Public holiday; some offices closed.
New Year
31 Dec–1 Jan · Sukhbaatar Square
Lights and fireworks in deep cold; restaurants book out.
Crowds and prices
- Crowds · Mongolia overall
- Low
- Prices · Mongolia overall
- Low
Mongolia overall: Deep cold and smog; Ulaanbaatar only, with good layers.
Compare two months
Weather, crowds and prices for any two months in Ulaanbaatar, side by side.
Verdict
Dec: Avoid
Jun: Great (better)
Daytime high
Dec: -13 °C (9 °F)9 °F (-13 °C)
Jun: 22 °C (72 °F)72 °F (22 °C)
Night low
Dec: -23 °C (−9 °F)−9 °F (-23 °C)
Jun: 9 °C (48 °F)48 °F (9 °C)
Rain days
Dec: 1 (better)
Jun: 9
Crowds
Dec: Low
Jun: Medium
Prices
Dec: Low
Jun: Medium
Festivals listed
Dec: 2
Jun: 1
December: Deep cold and smog.
June: Warm, long days; camps open.
Ulaanbaatar: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings