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September Weather in Stamboliyski, Bulgaria

Last updated: August 22, 2025

In Stamboliyski, Bulgaria, the average temperature in September hovers around 20°C (68°F), with a range that can dip to a brisk 1°C (34°F) or soar to a sweltering 36°C (97°F). Expect a moderate precipitation of 21 mm (0.8 in) spread over approximately three days, while the average humidity sits comfortably at 59%.

September Temperature in Stamboliyski

In September, in Stamboliyski, the average temperature is 20°C (68°F). The maximum can reach 36°C (97°F) and the minimum can be as low as 1°C (34°F). Be prepared for a wide range of temperatures, and pack accordingly for your travels!

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

The chart illustrates September temperature patterns in Stamboliyski, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stamboliyski, September typically has an average temperature of 20°C (68°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec354045546371767768574740
Data source: Temperature data for Stamboliyski 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 Stamboliyski

In Stamboliyski in September, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

September Precipitation Trends in Stamboliyski

The chart displays monthly precipitation patterns in Stamboliyski, 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 Stamboliyski, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec444866575279462821525763
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Stamboliyski

In Stamboliyski in September, humidity is 59%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, creating a slightly muggy atmosphere that can be a bit stifling for outdoor activities, yet refreshing during cooler, shaded moments, making it ideal for leisurely sightseeing and exploration in the early mornings or late afternoons.

September Average Humidity in Stamboliyski

This chart illustrates the average monthly humidity levels in Stamboliyski, 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 Stamboliyski is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%85%83%71%73%67%68%50%59%79%87%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Stamboliyski

In Stamboliyski 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 Stamboliyski.

Maximum UV Index Levels in Stamboliyski for September

The chart shows the monthly maximum UV Index (UVI) for Stamboliyski 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 Stamboliyski typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2478910997632
Data source: Stamboliyski 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 Stamboliyski Compares to Other Months

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

This table compares monthly weather conditions in Stamboliyski, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)44 mm (1.7 inches)89%low
February Weather4°C (40°F)48 mm (1.9 inches)85%moderate
March Weather7°C (46°F)66 mm (2.6 inches)83%high
April Weather12°C (54°F)57 mm (2.2 inches)71%very high
May Weather17°C (64°F)52 mm (2.1 inches)73%very high
June Weather22°C (71°F)79 mm (3.1 inches)67%very high
July Weather24°C (76°F)45 mm (1.8 inches)68%very high
August Weather25°C (77°F)28 mm (1.1 inches)50%very high
September Weather20°C (68°F)21 mm (0.8 inches)59%high
October Weather14°C (57°F)52 mm (2.1 inches)79%high
November Weather8°C (47°F)57 mm (2.3 inches)87%moderate
December Weather4°C (40°F)63 mm (2.5 inches)89%low

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