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September Weather in Garmen, Bulgaria

Last updated: August 22, 2025

In Garmen, Bulgaria, the average temperature in September hovers around 17°C (63°F). Expect fluctuations, with minimums dipping to 0°C (33°F) and maximums soaring to 32°C (89°F). During this month, you can anticipate precipitation of about 40 mm (1.6 in) over roughly 5 days, accompanied by an average humidity of 57%.

September Temperature in Garmen

In September in Garmen, the average temperature is 17°C (63°F), with maximums reaching 32°C (89°F) and minimums dipping as low as 0°C (33°F). This varied climate makes it essential to pack for both warm and cool conditions when traveling to Garmen during this time.

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

The chart illustrates September temperature patterns in Garmen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garmen, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (89°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec333842505864707063534538
Data source: Temperature data for Garmen 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 Garmen

In Garmen in September, the precipitation amount is 40 mm (1.6 in) over the course of 5 days.

September Precipitation Trends in Garmen

The chart displays monthly precipitation patterns in Garmen, 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 Garmen, September typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec7167987781906937406281119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Garmen

In Garmen in September, humidity is 57%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing yet slightly damp embrace, making it comfortable for traveling while inviting you to explore the serene surroundings without the sweltering heat.

September Average Humidity in Garmen

This chart illustrates the average monthly humidity levels in Garmen, 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 Garmen is approximately 57%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%83%81%71%74%63%60%47%57%76%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Garmen

In Garmen in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Garmen.

Maximum UV Index Levels in Garmen for September

The chart shows the monthly maximum UV Index (UVI) for Garmen 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 Garmen typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2478101110108642
Data source: Garmen 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 Garmen Compares to Other Months

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

This table compares monthly weather conditions in Garmen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)71 mm (2.8 inches)88%low
February Weather3°C (38°F)67 mm (2.7 inches)83%moderate
March Weather6°C (42°F)98 mm (3.8 inches)81%high
April Weather10°C (50°F)77 mm (3.0 inches)71%very high
May Weather15°C (59°F)81 mm (3.2 inches)74%very high
June Weather18°C (65°F)90 mm (3.6 inches)63%extreme
July Weather21°C (70°F)69 mm (2.7 inches)60%very high
August Weather21°C (71°F)36 mm (1.4 inches)47%very high
September Weather17°C (63°F)40 mm (1.6 inches)57%very high
October Weather12°C (53°F)62 mm (2.4 inches)76%high
November Weather7°C (45°F)81 mm (3.2 inches)85%moderate
December Weather3°C (38°F)119 mm (4.7 inches)87%low

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