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September Weather in Kostiantynivka, Ukraine

Last updated: August 28, 2025

In September, the average temperature in Kostiantynivka, Ukraine hovers around 17°C (63°F). Expect a minimum as low as -1°C (30°F) and a potential maximum reaching 35°C (95°F). During this month, anticipate about 26 mm (1.0 in) of precipitation spread over 5 days, with an average humidity of 58%.

September Temperature in Kostiantynivka

In September in Kostiantynivka, the average temperature is 17°C (63°F). Maximum temperatures can reach as high as 35°C (95°F), while minimums can drop to -1°C (30°F). This variation in temperatures means travelers should pack accordingly for a range of weather conditions.

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

The chart illustrates September temperature patterns in Kostiantynivka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostiantynivka, September typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec272937496171737362513732
Data source: Temperature data for Kostiantynivka 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 Kostiantynivka

In Kostiantynivka in September, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.

September Precipitation Trends in Kostiantynivka

The chart displays monthly precipitation patterns in Kostiantynivka, 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 Kostiantynivka, September typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec494347424950503126313652
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kostiantynivka

In Kostiantynivka in September humidity is 58%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and dress in light layers.

September Average Humidity in Kostiantynivka

This chart illustrates the average monthly humidity levels in Kostiantynivka, 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 Kostiantynivka is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%92%86%73%62%62%52%47%58%76%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kostiantynivka

In Kostiantynivka in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Kostiantynivka, you can refer to this Hourly UV Index in Kostiantynivka.

Maximum UV Index Levels in Kostiantynivka for September

The chart shows the monthly maximum UV Index (UVI) for Kostiantynivka 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 Kostiantynivka typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec225689886421
Data source: Kostiantynivka 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 Kostiantynivka Compares to Other Months

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

This table compares monthly weather conditions in Kostiantynivka, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)49 mm (1.9 inches)87%low
February Weather-2°C (29°F)43 mm (1.7 inches)92%low
March Weather3°C (37°F)47 mm (1.8 inches)86%moderate
April Weather10°C (50°F)42 mm (1.7 inches)73%high
May Weather16°C (61°F)49 mm (1.9 inches)62%very high
June Weather22°C (71°F)50 mm (2.0 inches)62%very high
July Weather23°C (73°F)50 mm (2.0 inches)52%very high
August Weather23°C (73°F)31 mm (1.2 inches)47%very high
September Weather17°C (63°F)26 mm (1.0 inches)58%high
October Weather10°C (51°F)31 mm (1.2 inches)76%moderate
November Weather3°C (37°F)36 mm (1.4 inches)90%low
December Weather0°C (32°F)52 mm (2.0 inches)93%low

Compare Kostiantynivka's Climate with Cities Worldwide