September weather forecastErdenet, Mongolia
September
Weather in September
In September, Autumn officially begins to color the city with a palette of oranges, yellows, and reds. Humidity declines to 64%, providing a respite from the more humid summer. However, the weather is still unpredictable, with the occasional bout of early snowfall surprising residents. Sunlight falters a little, and winds get icier, hinting at the return of winter. This trend is expected to continue into October.Temperature
As August transitions into September, Erdenet sees a drop in the average high-temperature, transitioning from an enjoyable 19.8°C (67.6°F) to a still refreshing 14°C (57.2°F). The nights of September anticipate an average low-temperature of 2.5°C (36.5°F).Humidity
In Erdenet, the average relative humidity in September is 64%.Rainfall
In Erdenet, in September, it is raining for 10.3 days, with typically 29mm (1.14") of accumulated precipitation. In Erdenet, during the entire year, the rain falls for 95.7 days and collects up to 366mm (14.41") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 2.7 snowfall days, it receives 48mm (1.89") of snow. In Erdenet, during the entire year, snow falls for 53.8 days and aggregates up to 572mm (22.52") of snow.Daylight
In Erdenet, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:20 and sunset at 19:46. On the last day of September, in Erdenet, Mongolia, sunrise is at 07:02 and sunset at 18:45 +08.
Sunshine
In Erdenet, the average sunshine in September is 8.7h.UV index
In Erdenet, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during September leads to these advisories:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Erdenet, Mongolia
- Average high temperature in September: 14°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (-16°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 (-24.9°C).
Average pressure in September
Erdenet, Mongolia
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is January (1035.3mbar).
The month with the lowest atmospheric pressure is July (1005.4mbar).
Average wind speed in September
Erdenet, Mongolia
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is May (13km/h).
The calmest month (with the lowest average wind speed) is August (7.9km/h).
Average humidity in September
Erdenet, Mongolia
- Average humidity in September: 64%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (46%).
Average rainfall in September
Erdenet, Mongolia
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is July (100mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
Erdenet, Mongolia
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is December (0.5 days).
Average snowfall in September
Erdenet, Mongolia
- Average snowfall in September: 48mm
The month with the highest snowfall is October (140mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Erdenet, Mongolia
- Average snowfall days in September: 2.7 days
The month with the highest number of snowfall days is March (8.6 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Erdenet, Mongolia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Erdenet, Mongolia
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is January (28.1 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Erdenet, Mongolia
- Average UV index in September: 2
The month with the highest UV index is June (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Erdenet, Mongolia
- Average cloud cover in September: 27
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in September
Erdenet, Mongolia
- Average visibility in September: 10km
The months with the highest visibility are April, May, June and September (10km).
The month with the lowest visibility is February (7km).





