Ulaanbaatar Weather in January
Thinking of visiting Ulaanbaatar in January? Expect very low temperatures reaching -15°C (5°F) during the day, dropping to -28°C (-18°F) at night, with the driest conditions of the year.
Rainfall in Ulaanbaatar in January
The risk of rain is at its lowest this month, making it a reliable choice for outdoor plans, even if temperatures are on the cooler side. Past climate data indicates that roughly 3 days will see snow, totalling around 3.6 mm (0.1 in) for the month. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Ulaanbaatar in January
If you're visiting Ulaanbaatar in January, expect highs of -15°C (5°F) and overnight lows around -28°C (-18°F). The month of January belongs to the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. Nights drop below freezing to -28°C (-18°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. On average, it is the coldest month of the year. So be prepared and make sure to pack winter clothes.
Sunshine in Ulaanbaatar in January
The area experiences a moderate amount of sunshine, with approximately 180 hours of sunlight expected. This means a decent mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather 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 January
Min Temperature
-28°C (-18°F)
Max Temperature
-15°C (5°F)
Chance of Rain
11%
Precipitation
3.6 mm (0.1 in)
Rainy days
3 days
Humidity
78%
Sunshine
180 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Ulaanbaatar typically stay consistent throughout January, with daily highs averaging around -15°C (5°F). Nights are very cold, with lows typically ranging from -30°C (-22°F) to -28°C (-18°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Ulaanbaatar in January
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 January
The extremes listed below come from historical weather data collected in Ulaanbaatar from 1976 through 2025.
- On January 12, 2002, temperatures climbed to -3°C (27°F), marking the warmest January day on record.
- The coldest night in January in Ulaanbaatar was on January 9, 2001, with a minimum of -45°C (-49°F).
Best Places in Mongolia in January
Find out more about the weather in Mongolia and which places have the best travel conditions in this month. See all of Mongolia in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ulaanbaatar in January
Winter clothing is essential for visiting Ulaanbaatar in January. If you have a heavy coat, waterproof boots with good traction, and plenty of warm layers it's smart to bring them. Pack cloths like thermal underwear, wool socks, and insulated gloves. With minimal rainfall expected, you can leave the rain gear at home. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Ulaanbaatar in January
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.
