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September Weather in Kostanay, Kazakhstan

Last updated: August 23, 2025

In September, the average temperature in Kostanay, Kazakhstan is a pleasant 12°C (54°F). However, temperatures can vary significantly, with a minimum of -3°C (28°F) and a maximum reaching up to 32°C (91°F). Visitors can expect an average precipitation of 38 mm (1.5 in) spread over 6 days, and a comfortable average humidity of 68%.

September Temperature in Kostanay

In September in Kostanay, the average temperature is 12°C (54°F), with maximums reaching 32°C (91°F) and minimums dropping as low as -3°C (28°F). This variability in temperature makes it essential for travelers to pack layers to ensure comfort during their visit.

September Weather in Kostanay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kostanay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostanay, September typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (91°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec6921425864716854412410
Data source: Temperature data for Kostanay generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Kostanay

In Kostanay in September, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.

September Precipitation Trends in Kostanay

The chart displays monthly precipitation patterns in Kostanay, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Kostanay, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec193126334133455638382123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kostanay

In Kostanay in September, humidity is 68%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that can make exploring the area a bit uncomfortable, often requiring warm layers to stay cozy while sightseeing.

September Average Humidity in Kostanay

This chart illustrates the average monthly humidity levels in Kostanay, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kostanay is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%97%95%83%54%50%50%56%68%84%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kostanay

In Kostanay in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Kostanay.

Maximum UV Index Levels in Kostanay for September

The chart shows the monthly maximum UV Index (UVI) for Kostanay in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Kostanay typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec135677765321
Data source: Kostanay September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Kostanay Compares to Other Months

Weather in Kostanay varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kostanay, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kostanay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (6°F)19 mm (0.7 inches)98%low
February Weather-13°C (9°F)30 mm (1.2 inches)97%moderate
March Weather-6°C (21°F)26 mm (1.0 inches)95%moderate
April Weather6°C (43°F)33 mm (1.3 inches)82%high
May Weather15°C (58°F)41 mm (1.6 inches)54%high
June Weather18°C (65°F)33 mm (1.3 inches)49%high
July Weather22°C (71°F)45 mm (1.8 inches)50%high
August Weather20°C (68°F)56 mm (2.2 inches)56%high
September Weather12°C (54°F)38 mm (1.5 inches)68%moderate
October Weather5°C (42°F)38 mm (1.5 inches)84%moderate
November Weather-5°C (24°F)21 mm (0.8 inches)87%low
December Weather-12°C (10°F)23 mm (0.9 inches)85%low

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