Ulan Bator weather in October
October is one of the least pleasant months in Ulan Bator: highs of 4°C (40°F) and about 11 mm (0.4 in) of rain on average. Nights average -7°C (20°F) and cloud cover 45% (NASA POWER, 2001–2025 averages). It is the 6th wettest month of the year and the 6th coolest. Compared with September, it is cooler and drier; November brings highs of -7°C (20°F) and 8 mm (0.3 in) of rain.
Is October a good time to visit Ulan Bator?
least pleasant month Weather score 49/100.
October is one of the least pleasant months for weather in Ulan Bator. For better conditions, consider Jun–Sep.
Does it rain a lot in Ulan Bator in October?
No, it is usually dry: about 11 mm (0.4 in) falls in an average October. It is the 6th wettest month of the year.
How warm is Ulan Bator in October?
Days average 4°C (40°F) and nights -7°C (20°F).
Ulan Bator weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | -16°C (3°F) | -26°C (-14°F) | 3 mm | 43% | least pleasant |
| February | -12°C (10°F) | -24°C (-11°F) | 4 mm | 47% | least pleasant |
| March | -3°C (27°F) | -15°C (5°F) | 6 mm | 49% | least pleasant |
| April | 7°C (44°F) | -6°C (21°F) | 10 mm | 52% | least pleasant |
| May | 15°C (59°F) | 0°C (32°F) | 29 mm | 54% | fair |
| June | 22°C (72°F) | 8°C (46°F) | 48 mm | 61% | best |
| July | 24°C (75°F) | 11°C (51°F) | 68 mm | 61% | best |
| August | 21°C (71°F) | 8°C (47°F) | 61 mm | 55% | best |
| September | 15°C (58°F) | 1°C (34°F) | 25 mm | 46% | best |
| October | 4°C (40°F) | -7°C (20°F) | 11 mm | 45% | least pleasant |
| November | -7°C (20°F) | -16°C (3°F) | 8 mm | 51% | least pleasant |
| December | -15°C (6°F) | -23°C (-10°F) | 4 mm | 50% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months