When to go · Ondorkhaan
Ondorkhaan in January
Avoid month. Listed as a month to avoid: Nov–Mar (down to −30 °C (−22 °F)), and the muddy spring thaw.Avoid month. Listed as a month to avoid: Nov–Mar (down to −22 °F (−30 °C)), and the muddy spring thaw.
Key facts
- Verdict
- Avoid
- Temperature
- −16°C (4°F)4°F (−16°C) / −29°C (−21°F)−21°F (−29°C)
- average high / low
- Rain days
- 2
- Crowds
- Low
- Mongolia overall
- Prices
- Low
- Mongolia overall
Verdict
Listed as a month to avoid: Nov–Mar (down to −30 °C (−22 °F)), and the muddy spring thaw.Listed as a month to avoid: Nov–Mar (down to −22 °F (−30 °C)), and the muddy spring thaw.
Is another month better than January?
January is rated avoid. These months rate higher:
Weather in January
- OndorkhaanHighs around -15.6 °C (4 °F), lows around -29.5 °C (−21 °F), rain on about 2 daysHighs around 4 °F (-15.6 °C), lows around −21 °F (-29.5 °C), rain on about 2 days
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.
Tsagaan Sar (Lunar New Year) big impact
Feb 2027 (lunar, moves yearly — check) · Mongolia
Three official days, but many shops and restaurants close for a week; families visit elders, transport out of the city is packed.
Crowds and prices
- Crowds · Mongolia overall
- Low
- Prices · Mongolia overall
- Low
Mongolia overall: −20 to −30 °C and the worst smog of the year in Ulaanbaatar; city museums only.
Compare two months
Weather, crowds and prices for any two months in Ondorkhaan, side by side.
Verdict
Jan: Avoid
Jun: Great (better)
Daytime high
Jan: -15.6 °C (4 °F)4 °F (-15.6 °C)
Jun: 25.4 °C (78 °F)78 °F (25.4 °C)
Night low
Jan: -29.5 °C (−21 °F)−21 °F (-29.5 °C)
Jun: 10.1 °C (50 °F)50 °F (10.1 °C)
Rain days
Jan: 2 (better)
Jun: 44
Crowds
Jan: Low
Jun: Medium
Prices
Jan: Low
Jun: Medium
Festivals listed
Jan: 1
Jun: 0
January: Listed as a month to avoid: Nov–Mar (down to −30 °C), and the muddy spring thaw.
June: Inside Ondorkhaan's best window: Jun–Sep.
Ondorkhaan: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings