Ulan Bator weather in 2025
Ulan Bator weather in 2025, with 365 daily observations from Open-Meteo archive data.
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Use the graph view to inspect 2025 alongside other available years for Ulan Bator.
Year summary
In 2025, Ulan Bator averaged 6.7 C for daily highs and -4.9 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was -0.3 C from that baseline, and total precipitation was -88.7 mm from the baseline total.
The warmest month was July, with an average high of 25.6 C, while December had the lowest average low at -24.0 C.
The wettest month was August, totaling 113.4 mm. The hottest day reached 33.7 C on July 21, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | -22.6 | -11.7 | 4.6 | 31 |
| February | -23.0 | -10.5 | 2.6 | 28 |
| March | -11.1 | 1.4 | 14.1 | 31 |
| April | -2.3 | 10.8 | 5.8 | 30 |
| May | 3.3 | 17.0 | 17.7 | 31 |
| June | 10.9 | 23.9 | 18.9 | 30 |
| July | 13.8 | 25.6 | 45.5 | 31 |
| August | 10.9 | 21.8 | 113.4 | 31 |
| September | 4.9 | 15.7 | 54.0 | 30 |
| October | -7.0 | 3.1 | 12.2 | 31 |
| November | -13.7 | -3.6 | 18.4 | 30 |
| December | -24.0 | -13.5 | 1.7 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | July 21, 2025 | 33.7 C |
| Coldest night | February 7, 2025 | -31.8 C |
| Wettest day | August 17, 2025 | 32.2 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.