September weather forecastBornuur, Mongolia
September
Weather in September
September experiences a significant temperature shift from 2.5°C (36.5°F) to 13.4°C (56.1°F), marking the arrival of autumn in Bornuur. The city awes its visitors with a distinctive color palette of oranges, reds, and yellows. The month also commences the return of snowfall with an average of 17mm (0.67"). The lower temperatures and reducing daylight hours give the first hints of the incoming winter. It is an enchanting time to stroll around the city and witness its autumnal transformation.Temperature
As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from 19.6°C (67.3°F) to a still refreshing 13.4°C (56.1°F). In September, Bornuur records an average nighttime temperature of 2.5°C (36.5°F).Humidity
In Bornuur, the average relative humidity in September is 63%.Rainfall
In Bornuur, during September, the rain falls for 6.1 days and regularly aggregates up to 13mm (0.51") of precipitation. Throughout the year, in Bornuur, there are 83 rainfall days, and 204mm (8.03") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Bornuur. September is the first month it typically snows in Bornuur. Throughout September, in the average 1.5 snowfall days, it receives 17mm (0.67") of snow. In Bornuur, during the entire year, snow falls for 64.7 days and aggregates up to 378mm (14.88") of snow.Daylight
In September, the average length of the day in Bornuur is 12h and 36min.On the first day of September in Bornuur, sunrise is at 06:12 and sunset at 19:37. On the last day of the month, sunrise is at 06:53 and sunset at 18:36 +08.
Sunshine
In September, the average sunshine in Bornuur, Mongolia, is 8.9h.UV index
In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 2 in September translates into this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bornuur, Mongolia
- Average high temperature in September: 13.4°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (-16.1°C).
- Average low temperature in September: 2.5°C
The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is January (-25.9°C).
Average pressure in September
Bornuur, Mongolia
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is January (1034.8mbar).
The month with the lowest atmospheric pressure is July (1005.6mbar).
Average wind speed in September
Bornuur, Mongolia
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is May (13.2km/h).
The calmest month (with the lowest average wind speed) is January (7.3km/h).
Average humidity in September
Bornuur, Mongolia
- Average humidity in September: 63%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is May (49%).
Average rainfall in September
Bornuur, Mongolia
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in September
Bornuur, Mongolia
- Average rainfall days in September: 6.1 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Bornuur, Mongolia
- Average snowfall in September: 17mm
The month with the highest snowfall is October (73mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Bornuur, Mongolia
- Average snowfall days in September: 1.5 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Bornuur, Mongolia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in September
Bornuur, Mongolia
- Average sunshine days in September: 22 days
The month with the most sunshine days is October (24.4 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in September
Bornuur, Mongolia
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Bornuur, Mongolia
- Average cloud cover in September: 26
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 25).
Average visibility in September
Bornuur, Mongolia
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, September and October (10km).
The month with the lowest visibility is January (7km).
