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September Weather in Ostrovu, Romania

Last updated: August 27, 2025

In September, the average temperature in Ostrovu, Romania hovers around 15°C (60°F). You'll experience a range from -2°C (28°F) at its coldest to a warm 31°C (88°F) at its peak. Expect about 44 mm (1.7 in) of precipitation spread over 7 days, with an average humidity level of 57%.

September Temperature in Ostrovu

In September in Ostrovu, the average temperature is 15°C (60°F). Maximums can reach 31°C (88°F) and minimums can be as low as -2°C (28°F). Travelers should be prepared for a wide range of temperatures when visiting during this time.

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

The chart illustrates September temperature patterns in Ostrovu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostrovu, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec283238475664666859494033
Data source: Temperature data for Ostrovu 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 Ostrovu

In Ostrovu in September, the precipitation amount is 44 mm (1.7 in) spread over a duration of 7 days.

September Precipitation Trends in Ostrovu

The chart displays monthly precipitation patterns in Ostrovu, 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 Ostrovu, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec404459621111651429144674780
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ostrovu

In Ostrovu in September, humidity is 57%. With an average temperature of 15°C (60°F), this humidity feels like a comfortable embrace that enhances the refreshing experience for traveling, making it an ideal time to explore the sights without feeling overheated.

September Average Humidity in Ostrovu

This chart illustrates the average monthly humidity levels in Ostrovu, 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 Ostrovu is approximately 57%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%85%82%73%71%70%66%48%57%79%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ostrovu

In Ostrovu in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Ostrovu.

Maximum UV Index Levels in Ostrovu for September

The chart shows the monthly maximum UV Index (UVI) for Ostrovu 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 Ostrovu typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Ostrovu 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 Ostrovu Compares to Other Months

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

This table compares monthly weather conditions in Ostrovu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)40 mm (1.6 inches)88%low
February Weather0°C (32°F)44 mm (1.7 inches)85%moderate
March Weather3°C (38°F)59 mm (2.3 inches)82%moderate
April Weather8°C (47°F)62 mm (2.4 inches)73%high
May Weather13°C (56°F)111 mm (4.4 inches)71%very high
June Weather18°C (64°F)165 mm (6.5 inches)70%very high
July Weather19°C (67°F)141 mm (5.6 inches)66%very high
August Weather20°C (68°F)91 mm (3.6 inches)48%very high
September Weather15°C (60°F)44 mm (1.7 inches)57%high
October Weather10°C (50°F)67 mm (2.6 inches)79%moderate
November Weather5°C (41°F)47 mm (1.9 inches)87%moderate
December Weather0°C (33°F)80 mm (3.1 inches)88%low

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