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September Weather in Mariinsk, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Mariinsk, Russian Federation hovers around 9°C (48°F). Expect chilly nights with a minimum of -3°C (26°F), while daytime highs can reach a pleasant 26°C (79°F). With precipitation totaling 61 mm (2.4 in) spread over 12 days, prepare for some wet weather. Coupled with an average humidity of 89%, you'll definitely want to dress in layers!

September Temperature in Mariinsk

In September in Mariinsk, the average temperature is 9°C (48°F). The maximum can reach 26°C (79°F) and the minimum can be as low as -3°C (26°F). Be prepared for a diverse range of weather conditions when traveling to Mariinsk during this time.

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

The chart illustrates September temperature patterns in Mariinsk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariinsk, September typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec91222375157646048372214
Data source: Temperature data for Mariinsk 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 Mariinsk

In Mariinsk in September, the total precipitation amount is 61 mm (2.4 in), which occurs over a span of 12 days.

September Precipitation Trends in Mariinsk

The chart displays monthly precipitation patterns in Mariinsk, 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 Mariinsk, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec273138464780788361523630
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mariinsk

In Mariinsk in September humidity is 89%. With an average temperature of 9°C (48°F), this humidity feels like a chill that lingers in the air, wrapping around you like a damp blanket, making outdoor activities challenging and encouraging a cozy retreat indoors.

September Average Humidity in Mariinsk

This chart illustrates the average monthly humidity levels in Mariinsk, 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 Mariinsk is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%96%95%90%78%70%82%82%89%90%95%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mariinsk

In Mariinsk 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 Mariinsk.

Maximum UV Index Levels in Mariinsk for September

The chart shows the monthly maximum UV Index (UVI) for Mariinsk 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 Mariinsk typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765321
Data source: Mariinsk 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 Mariinsk Compares to Other Months

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

This table compares monthly weather conditions in Mariinsk, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-13°C (9°F)27 mm (1.1 inches)99%low
February Weather-11°C (12°F)31 mm (1.2 inches)96%low
March Weather-5°C (23°F)37 mm (1.5 inches)95%moderate
April Weather3°C (38°F)46 mm (1.8 inches)90%moderate
May Weather11°C (51°F)47 mm (1.8 inches)78%high
June Weather14°C (57°F)80 mm (3.1 inches)70%high
July Weather18°C (64°F)78 mm (3.1 inches)82%high
August Weather15°C (60°F)83 mm (3.3 inches)81%high
September Weather9°C (48°F)61 mm (2.4 inches)89%moderate
October Weather3°C (38°F)52 mm (2.1 inches)90%moderate
November Weather-6°C (22°F)36 mm (1.4 inches)94%low
December Weather-10°C (14°F)30 mm (1.2 inches)93%low

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