Temperature
Cool by day, cold at night.
61°Ftypical September high
Typical range
September climate
September in Ulaanbaatar
Mongolia · East Asia
Cool days and plenty of sun.
Excellent time to visit
Daytime high
61°F
Lows around 39°F
Precipitation
8 days/mo
Sun
10 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Some precipitation is expected this month.
27%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
10.2 hSeptember sunshine
Heat & humidity by month
Very drySeptember Heat feel
Easy airWarm airHot airHumid air
Hourly temperature pattern
In September, afternoons feel about 52° and nights feel near 34°.
FrigidFreezingVery coldColdCoolComfortableNight hours
Clear sky
Partly cloudy skies this month.
53%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
6 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 60°F, easing to about 52°F in early evening.
Avg temp Typical range
Morning49°F
Rain12%
Cloud47%
Humid airLow
Sun intensityLow
Midday58°F
Rain15%
Cloud50%
Humid airLow
Sun intensityStrong
Late afternoon60°F
Rain15%
Cloud51%
Humid airLow
Sun intensityModerate
Early evening52°F
Rain9%
Cloud44%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 4 | -18 | 0.1 | 1 | 7.8 | 76 |
| Feb | 14 | -12 | 0.1 | 1 | 9.2 | 72 |
| Mar | 32 | 7 | 0.3 | 3 | 10.6 | 57 |
| Apr | 49 | 26 | 0.6 | 4 | 11.2 | 48 |
| May | 61 | 38 | 1.3 | 7 | 12.1 | 50 |
| Jun | 71 | 50 | 2.1 | 10 | 12.2 | 59 |
| Jul | 75 | 56 | 2.5 | 11 | 11.4 | 66 |
| Aug | 71 | 52 | 2.6 | 11 | 11.1 | 68 |
| Sep | 61 | 39 | 1.4 | 8 | 10.2 | 64 |
| Oct | 44 | 22 | 0.6 | 4 | 9.2 | 63 |
| Nov | 22 | 1 | 0.3 | 2 | 8.0 | 71 |
| Dec | 7 | -12 | 0.1 | 1 | 7.3 | 75 |
Similar climates
Similar
Similar travel styleArosaSwitzerlandSimilar travel styleLehIndiaSimilar travel styleAngarskRussiaSimilar travel styleOsloNorway
Want a side-by-side climate view? Compare Ulaanbaatar with Arosa.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology