Ulan Bator, Ulaanbaatar, Mongolia climate
Average temperatures, precipitation and all-time records for Ulan Bator, Ulaanbaatar, Mongolia, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 22°C, and its coldest is January, with an average low of -29°C.
Ulaanbaatar is the capital and most populous city of Mongolia. It has a population of 1.67 million, and is the coldest capital city in the world by average yearly temperature. via Wikipedia
Ulan Bator average temperatures by month
Typical daily high and low, and average precipitation, for each month in Ulan Bator, Ulaanbaatar, Mongolia, based on 1980–2026 records. The wettest month is June (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | -17°C | -29°C | 0 mm |
| February | -12°C | -26°C | 0 mm |
| March | -3°C | -17°C | 0 mm |
| April | 7°C | -6°C | 0 mm |
| May | 14°C | 2°C | 0 mm |
| June | 20°C | 8°C | 3 mm |
| July | 22°C | 11°C | 3 mm |
| August | 20°C | 9°C | 3 mm |
| September | 14°C | 2°C | 3 mm |
| October | 5°C | -7°C | 0 mm |
| November | -7°C | -19°C | 0 mm |
| December | -15°C | -26°C | 0 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 35°C on 1999-07-24
- Coldest day on record: -42°C on 2018-01-21
Percentiles compare each day to Ulan Bator, Ulaanbaatar, Mongolia's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →