Ulan Gom Weather in September
In Ulan Gom, September brings moderate daytime temperatures around 16°C (61°F), with nights cooling to 4°C (39°F). Some rainfall is to be expected.
Rainfall in Ulan Gom in September
Looking at the last 30 years, the data shows about 8 days with rain, averaging 42 mm (1.7 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Ulan Gom in September
In September, Ulan Gom gets moderate temperatures, with highs of 16°C (61°F). Nights cool to around 4°C (39°F). Conditions are often most pleasant around the middle of the day. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Ulan Gom in September
There are approximately 250 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Ulan Gom in September
Average wind conditions reach 1 m/s (2 knots) in September. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mongolia, check out our Ulan Gom's climate page.
Ulan Gom Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
16°C (61°F)
Chance of Rain
28%
Precipitation
42 mm (1.7 in)
Rainy days
8 days
Humidity
61%
Windspeed
1 m/s (2 knots)
Sunshine
250 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ulan Gom typically drop from around 19°C (66°F) at the start of September to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 8°C (46°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Ulan Gom in September
Browse day-by-day weather records for Ulan Gom spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ulan Gom historical weather extremes in September
Based on weather observations in Ulan Gom between 1976 and 2025, these are the recorded extremes during September.
- Ulan Gom recorded its highest September temperature of 29°C (84°F) on September 1, 2019.
- The lowest daytime temperature in September was 1°C (34°F), recorded on September 7, 1996.
- Ulan Gom registered its coldest September night on September 22, 2013, with temperatures dropping to -10°C (14°F).
Best Places in Mongolia in September
Find out more about the weather in Mongolia and which places have the best travel conditions in this month. See all of Mongolia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ulan Gom in September
For Ulan Gom in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Ulan Gom in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mongolia, check out our Ulan Gom's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Ulan Gom climate overview or explore weather in Mongolia.
