Cool
Average highs are around 15°C, so pack for cooler days.
September verdict
Ulaanbaatar, Mongolia in September
Weather score43Mixed
Mixed for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 8.1h per day, so bright days are a strong part of the month. Rainfall averages 43mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
15°C
Rain
43mm
Sun
8.1h
Weather score
43
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 43mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.1h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Ulaanbaatar, Mongolia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September15°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September43mm average rain
September sits near Ulaanbaatar's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to May and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8.1 hours average sun
September is brighter than Ulaanbaatar's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
September43 weather score
September scores below Ulaanbaatar's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsFebruary to August
These months have the strongest weather score in the monthly averages.