September weather forecastNogoonnuur, Mongolia
September
Weather in September
September in Nogoonnuur marks the full arrival of autumn and with it, a marked drop in temperature. A stark difference to August, this month witnesses the temperature tumbling down to 11.7°C (53.1°F) as compared to prior 18.2°C (64.8°F). Rainfall reduces significantly, making way for the reappearance of snowfall, though scant at 4mm (0.16"). The dropping mercury heralds the return of cool weather, as the rustic hues of Autumn begin to unfold. October brings further cooling, promising the arrival of the site's second-most famous season, the Mongolian winter.Temperature
Nogoonnuur's weather changes with the onset of September, slightly falling from a refreshing 18.2°C (64.8°F) in August to a cool 11.7°C (53.1°F). Nogoonnuur reports an average low-temperature of 1°C (33.8°F) during the nights of September.Humidity
In September, the average relative humidity is 46%.Rainfall
In September, the rain falls for 5 days. Throughout September, 6mm (0.24") of precipitation is accumulated. In Nogoonnuur, during the entire year, the rain falls for 68.9 days and collects up to 123mm (4.84") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 4mm (0.16") of snow. In Nogoonnuur, during the entire year, snow falls for 23.4 days and aggregates up to 101mm (3.98") of snow.Daylight
In Nogoonnuur, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:15 and sunset at 19:42. On the last day of September, sunrise is at 06:57 and sunset at 18:40 +07.
Sunshine
In Nogoonnuur, the average sunshine in September is 9.6h.UV index
January through April, September through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 2 translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nogoonnuur, Mongolia
- Average high temperature in September: 11.7°C
The warmest month (with the highest average high temperature) is July (19.9°C).
The month with the lowest average high temperature is January (-14°C).
- Average low temperature in September: 1°C
The month with the highest average low temperature is July (9.6°C).
The coldest month (with the lowest average low temperature) is January (-24.3°C).
Average pressure in September
Nogoonnuur, Mongolia
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is January (1034.8mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in September
Nogoonnuur, Mongolia
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is May (15.3km/h).
The calmest months (with the lowest average wind speed) are January and February (8.8km/h).
Average humidity in September
Nogoonnuur, Mongolia
- Average humidity in September: 46%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is May (41%).
Average rainfall in September
Nogoonnuur, Mongolia
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is July (36mm).
The driest months (with the least rainfall) are January and December (0mm).
Average rainfall days in September
Nogoonnuur, Mongolia
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is July (12.3 days).
The month with the least rainy days is December (1.7 days).
Average snowfall in September
Nogoonnuur, Mongolia
- Average snowfall in September: 4mm
The month with the highest snowfall is May (30mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Nogoonnuur, Mongolia
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is October (3.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Nogoonnuur, Mongolia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 13h and 18min).
The months with the least sunshine are November and December (Average sunshine: 7h and 0min).
Average sunshine days in September
Nogoonnuur, Mongolia
- Average sunshine days in September: 22.6 days
The month with the most sunshine days is December (29.3 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in September
Nogoonnuur, Mongolia
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 2).
Average cloud cover in September
Nogoonnuur, Mongolia
- Average cloud cover in September: 16
The month with the most cloud cover is December (Cloud cover 27).
The months with the least cloud cover are August and September (Cloud cover 16).
Average visibility in September
Nogoonnuur, Mongolia
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
