nomadseason

September Weather in Yambol, Bulgaria

Last updated: August 22, 2025

In September, the average temperature in Yambol, Bulgaria hovers around 21°C (69°F), with a minimum of 4°C (40°F) and a maximum reaching up to 34°C (93°F). Expect about 18 mm (0.7 in) of precipitation spread over 3 days, while the average humidity sits at a comfortable 58%—making it a pleasant time to visit!

September Temperature in Yambol

In September in Yambol, the average temperature is 21°C (69°F). Maximum temperatures can reach 34°C (93°F), while the minimum can dip as low as 4°C (40°F). This makes Yambol an ideal destination for travelers seeking a mix of warm days and cooler nights.

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

The chart illustrates September temperature patterns in Yambol, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yambol, September typically has an average temperature of 21°C (69°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec364145536370757769584941
Data source: Temperature data for Yambol 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 Yambol

In Yambol in September, the precipitation amount is 18 mm (0.7 in) over a span of 3 days.

September Precipitation Trends in Yambol

The chart displays monthly precipitation patterns in Yambol, 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 Yambol, September typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec574759444379391718645280
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Yambol

In Yambol in September humidity is 58%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace, creating a comfortable atmosphere for traveling that encourages leisurely exploration without feeling overly sticky or oppressive.

September Average Humidity in Yambol

This chart illustrates the average monthly humidity levels in Yambol, 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 Yambol is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%84%81%70%72%66%62%48%58%78%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yambol

In Yambol 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 Yambol.

Maximum UV Index Levels in Yambol for September

The chart shows the monthly maximum UV Index (UVI) for Yambol 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 Yambol typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246799997632
Data source: Yambol 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 Yambol Compares to Other Months

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

This table compares monthly weather conditions in Yambol, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)57 mm (2.2 inches)88%low
February Weather5°C (41°F)47 mm (1.8 inches)84%moderate
March Weather7°C (45°F)59 mm (2.3 inches)81%high
April Weather12°C (53°F)44 mm (1.7 inches)70%high
May Weather17°C (63°F)43 mm (1.7 inches)72%very high
June Weather21°C (71°F)78 mm (3.1 inches)66%very high
July Weather24°C (76°F)39 mm (1.5 inches)62%very high
August Weather25°C (77°F)17 mm (0.7 inches)48%very high
September Weather21°C (69°F)18 mm (0.7 inches)58%high
October Weather14°C (58°F)63 mm (2.5 inches)78%high
November Weather9°C (49°F)52 mm (2.0 inches)85%moderate
December Weather5°C (42°F)80 mm (3.1 inches)87%low

Compare Yambol's Climate with Cities Worldwide