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September Weather in Mirnyy, Russian Federation

Last updated: August 27, 2025

In Mirnyy, Russian Federation, the average temperature in September hovers around 13°C (56°F). While you can expect minimum temperatures to dip to -2°C (29°F), the highs can soar up to 32°C (89°F). Prepare for some rainy days, as the area receives about 39 mm (1.5 in) of precipitation over roughly 7 days. Don't forget, the average humidity stands at a muggy 73%, so be ready for a bit of stickiness in the air!

September Temperature in Mirnyy

In September in Mirnyy, the average temperature is 13°C (56°F), with maximums reaching up to 32°C (89°F) and minimums dropping as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures when visiting during this time.

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

The chart illustrates September temperature patterns in Mirnyy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mirnyy, September typically has an average temperature of 13°C (56°F), with highs reaching up to 32°C (89°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec151625435865716855452918
Data source: Temperature data for Mirnyy 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 Mirnyy

In Mirnyy in September, the precipitation amount is 39 mm (1.5 in) over the course of 7 days.

September Precipitation Trends in Mirnyy

The chart displays monthly precipitation patterns in Mirnyy, 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 Mirnyy, September typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec444246423647382939393544
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mirnyy

In Mirnyy in September humidity is 73%. With an average temperature of 13°C (56°F), this humidity feels like a cool, damp embrace that can be quite refreshing yet may require a light jacket for comfort while exploring the outdoors.

September Average Humidity in Mirnyy

This chart illustrates the average monthly humidity levels in Mirnyy, 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 Mirnyy is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%95%91%79%61%55%58%56%73%85%92%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mirnyy

In Mirnyy 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 Mirnyy.

Maximum UV Index Levels in Mirnyy for September

The chart shows the monthly maximum UV Index (UVI) for Mirnyy 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 Mirnyy typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec125577775321
Data source: Mirnyy 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 Mirnyy Compares to Other Months

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

This table compares monthly weather conditions in Mirnyy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)44 mm (1.7 inches)94%low
February Weather-9°C (17°F)42 mm (1.6 inches)95%low
March Weather-4°C (25°F)46 mm (1.8 inches)91%moderate
April Weather6°C (44°F)42 mm (1.7 inches)79%moderate
May Weather15°C (59°F)36 mm (1.4 inches)61%high
June Weather18°C (65°F)47 mm (1.9 inches)55%high
July Weather22°C (71°F)38 mm (1.5 inches)58%high
August Weather20°C (68°F)29 mm (1.1 inches)56%high
September Weather13°C (56°F)39 mm (1.5 inches)73%moderate
October Weather7°C (45°F)39 mm (1.5 inches)85%moderate
November Weather-2°C (29°F)35 mm (1.4 inches)92%low
December Weather-8°C (18°F)44 mm (1.7 inches)88%low

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