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September Weather in Sosnovyy Bor, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Sosnovyy Bor, Russian Federation hovers around 14°C (57°F), with a minimum dipping to 6°C (44°F) and a maximum reaching 21°C (71°F). Expect 115 mm (4.5 in) of rainfall spread over approximately 17 days, accompanied by a notably high average humidity of 90%.

September Temperature in Sosnovyy Bor

In September in Sosnovyy Bor, the average temperature is 14°C (57°F). Maximums can reach 21°C (71°F), while minimums can dip as low as 6°C (44°F). This mild climate makes Sosnovyy Bor a pleasant destination for travelers looking to enjoy comfortable weather and outdoor activities.

September Weather in Sosnovyy Bor: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sosnovyy Bor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sosnovyy Bor, September typically has an average temperature of 14°C (57°F), with highs reaching up to 21°C (71°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec272629374860656356473931
Data source: Temperature data for Sosnovyy Bor 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 Sosnovyy Bor

In Sosnovyy Bor, in September, the precipitation amount is 115 mm (4.5 in) over the course of 17 days.

September Precipitation Trends in Sosnovyy Bor

The chart displays monthly precipitation patterns in Sosnovyy Bor, 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 Sosnovyy Bor, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec475653464945701321151268082
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sosnovyy Bor

In Sosnovyy Bor in September, humidity is 90%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapping around you, making travel somewhat stifling and requiring frequent breaks to stay refreshed.

September Average Humidity in Sosnovyy Bor

This chart illustrates the average monthly humidity levels in Sosnovyy Bor, 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 Sosnovyy Bor 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 Sosnovyy Bor

In Sosnovyy Bor 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 Sosnovyy Bor for better planning.

Maximum UV Index Levels in Sosnovyy Bor for September

The chart shows the monthly maximum UV Index (UVI) for Sosnovyy Bor 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 Sosnovyy Bor typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Sosnovyy Bor 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 Sosnovyy Bor Compares to Other Months

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

This table compares monthly weather conditions in Sosnovyy Bor, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)47 mm (1.8 inches)97%low
February Weather-4°C (26°F)56 mm (2.2 inches)94%low
March Weather-2°C (29°F)53 mm (2.1 inches)90%moderate
April Weather3°C (37°F)46 mm (1.8 inches)86%moderate
May Weather9°C (48°F)49 mm (1.9 inches)71%moderate
June Weather15°C (60°F)45 mm (1.8 inches)77%high
July Weather18°C (65°F)70 mm (2.8 inches)82%high
August Weather17°C (64°F)132 mm (5.2 inches)86%moderate
September Weather14°C (57°F)115 mm (4.5 inches)90%moderate
October Weather8°C (47°F)126 mm (4.9 inches)93%low
November Weather4°C (39°F)80 mm (3.1 inches)93%low
December Weather-1°C (31°F)82 mm (3.2 inches)94%low

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