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September Weather in Slantsy, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Slantsy, Russian Federation is a mild 12°C (55°F). Expect a range from a chilly 1°C (33°F) to a warm 26°C (79°F). With an average humidity of 90%, this month also sees around 65 mm (2.5 in) of precipitation spread over 12 days.

September Temperature in Slantsy

In September in Slantsy, the average temperature is 12°C (55°F). Maximums can reach 26°C (79°F), and minimums can be as low as 1°C (33°F). This variation in temperature makes it essential to pack layers for your travels.

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

The chart illustrates September temperature patterns in Slantsy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slantsy, September typically has an average temperature of 12°C (55°F), with highs reaching up to 26°C (79°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec272631415262646254453729
Data source: Temperature data for Slantsy 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 Slantsy

In Slantsy in September, the precipitation amount is 65 mm (2.5 in) over the course of 12 days.

September Precipitation Trends in Slantsy

The chart displays monthly precipitation patterns in Slantsy, 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 Slantsy, September typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec455050536464728465745865
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slantsy

In Slantsy in September, humidity is 90%. With an average temperature of 12°C (55°F), this humidity feels like you're walking through a heavy mist, making every step feel sluggish and the air dense, which can be quite uncomfortable for traveling.

September Average Humidity in Slantsy

This chart illustrates the average monthly humidity levels in Slantsy, 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 Slantsy is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%94%90%86%71%77%82%86%90%93%93%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Slantsy

In Slantsy in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Slantsy for better planning.

Maximum UV Index Levels in Slantsy for September

The chart shows the monthly maximum UV Index (UVI) for Slantsy 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 Slantsy typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457764211
Data source: Slantsy 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 Slantsy Compares to Other Months

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

This table compares monthly weather conditions in Slantsy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)44 mm (1.8 inches)97%low
February Weather-3°C (26°F)50 mm (2.0 inches)94%low
March Weather0°C (32°F)50 mm (2.0 inches)90%moderate
April Weather5°C (41°F)53 mm (2.1 inches)86%moderate
May Weather11°C (52°F)64 mm (2.5 inches)71%moderate
June Weather17°C (62°F)64 mm (2.5 inches)77%high
July Weather18°C (64°F)72 mm (2.8 inches)82%high
August Weather17°C (62°F)84 mm (3.3 inches)86%high
September Weather12°C (55°F)65 mm (2.5 inches)90%moderate
October Weather7°C (45°F)74 mm (2.9 inches)93%low
November Weather3°C (37°F)58 mm (2.3 inches)93%low
December Weather-2°C (29°F)65 mm (2.6 inches)94%low

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