nomadseason

September Weather in Ostrov, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Ostrov, Russian Federation hovers around 12°C (55°F). Expect to experience a minimum of -1°C (30°F) and a maximum of 27°C (81°F). Precipitation is expected to be about 60 mm (2.4 in) over 12 days, contributing to an average humidity of 89%. Prepare for a month of varied weather!

September Temperature in Ostrov

In September in Ostrov, the average temperature is 12°C (55°F). Maximums can reach 27°C (81°F), while minimums can drop as low as -1°C (30°F). Overall, it's a month of diverse weather, so travelers should be prepared for both warm days and chilly nights.

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

The chart illustrates September temperature patterns in Ostrov, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostrov, September typically has an average temperature of 12°C (55°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec272733425363646254453729
Data source: Temperature data for Ostrov generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ostrov

In Ostrov in September, the precipitation amount is 60 mm (2.4 in) over a span of 12 days.

September Precipitation Trends in Ostrov

The chart displays monthly precipitation patterns in Ostrov, 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 Ostrov, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4139494572637410960695858
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Ostrov

In Ostrov in September, humidity is 89%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that seeps into your bones, making it feel much colder than the thermometer suggests and potentially complicating your travel plans.

September Average Humidity in Ostrov

This chart illustrates the average monthly humidity levels in Ostrov, 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 Ostrov is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%93%90%86%69%78%79%83%89%93%94%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ostrov

In Ostrov 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 Ostrov for better planning.

Maximum UV Index Levels in Ostrov for September

The chart shows the monthly maximum UV Index (UVI) for Ostrov 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 Ostrov typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Ostrov 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 Ostrov Compares to Other Months

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

This table compares monthly weather conditions in Ostrov, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)41 mm (1.6 inches)94%low
February Weather-3°C (27°F)39 mm (1.5 inches)93%low
March Weather0°C (33°F)49 mm (1.9 inches)89%moderate
April Weather6°C (43°F)45 mm (1.8 inches)86%moderate
May Weather11°C (53°F)72 mm (2.8 inches)69%high
June Weather17°C (63°F)63 mm (2.5 inches)78%high
July Weather18°C (65°F)74 mm (2.9 inches)79%high
August Weather17°C (62°F)109 mm (4.3 inches)83%high
September Weather12°C (55°F)60 mm (2.4 inches)89%moderate
October Weather7°C (46°F)69 mm (2.7 inches)93%low
November Weather3°C (38°F)58 mm (2.3 inches)94%low
December Weather-2°C (29°F)58 mm (2.3 inches)94%low

Compare Ostrov's Climate with Cities Worldwide