September weather forecastKostanay, Kazakhstan
September
Weather in September
September welcomes the autumn season in Kostanay, Kazakhstan with a noticeable drop in temperatures to 17.8°C (64°F). Sunshine hours reduce, setting the stage for shorter days and longer nights. The onset of autumn is marked by an increase in wind speed and a rise in relative humidity. The greenery starts to change hues, presenting a spectacle of fall colors. Although the frequency of rainfall reduces, its presence retains the vibrancy of the city's landscapes.Temperature
The shift from August to September in Kostanay, Kazakhstan, corresponds with a decrease in the average high-temperature, down to a comfortable 17.8°C (64°F) from a moderately hot 24.5°C (76.1°F). Kostanay's temperature drops to an average low of 9.2°C (48.6°F) during the nights of September.Humidity
In September, the average relative humidity in Kostanay is 58%.Rainfall
The months with the least rainfall in Kostanay are January, February and September Rain falls for 9.3 days and accumulates 16mm (0.63") of rain.Snowfall
Months with snowfall in Kostanay are January through April, September through December. September is the first month it typically snows in Kostanay. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Kostanay, there are 78.4 snowfall days, and 502mm (19.76") of snow is accumulated.Daylight
In Kostanay, the average length of the day in September is 12h and 41min.On the first day of September in Kostanay, sunrise is at 05:55 and sunset at 19:34. On the last day of the month, sunrise is at 06:45 and sunset at 18:24 +05.
Sunshine
The average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index in Kostanay is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kostanay, Kazakhstan
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-12.4°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is July (14.8°C).
The coldest month (with the lowest average low temperature) is January (-18.3°C).
Average pressure in September
Kostanay, Kazakhstan
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is February (1027.1mbar).
The month with the lowest atmospheric pressure is July (1009.5mbar).
Average wind speed in September
Kostanay, Kazakhstan
- Average wind speed in September: 14.1km/h
The windiest month (with the highest average wind speed) is April (17km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).
Average humidity in September
Kostanay, Kazakhstan
- Average humidity in September: 58%
The months with the highest relative humidity are February and March (93%).
The month with the lowest relative humidity is May (51%).
Average rainfall in September
Kostanay, Kazakhstan
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is May (35mm).
The driest months (with the least rainfall) are January, February and September (16mm).
Average rainfall days in September
Kostanay, Kazakhstan
- Average rainfall days in September: 9.3 days
The months with the highest number of rainy days are June and July (12.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Kostanay, Kazakhstan
- Average snowfall in September: 1mm
The month with the highest snowfall is December (107mm).
The months with the least snowfall are May, June, July and August (0mm).
Average snowfall days in September
Kostanay, Kazakhstan
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Kostanay, Kazakhstan
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in September
Kostanay, Kazakhstan
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is August (19 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in September
Kostanay, Kazakhstan
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
Kostanay, Kazakhstan
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Kostanay, Kazakhstan
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The month with the lowest visibility is February (7km).





