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September Weather in Strumyani, Bulgaria

Last updated: August 22, 2025

In Strumyani, Bulgaria, the average temperature in September hovers around 15°C (59°F). Prepare for some variability, as temperatures can dip to a chilly -3°C (27°F) or rise to a warm 29°C (84°F). This month typically sees a precipitation amount of 54 mm (2.1 in) spread over 8 days, contributing to an average humidity level of 57%.

September Temperature in Strumyani

In September in Strumyani, the average temperature is 15°C (59°F), with maximums reaching 29°C (84°F) and minimums dropping as low as -3°C (27°F). Travelers should be prepared for a range of temperatures, making layering essential for both warm afternoons and chilly evenings.

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

The chart illustrates September temperature patterns in Strumyani, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Strumyani, September typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec283438465460656659504133
Data source: Temperature data for Strumyani 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 Strumyani

In Strumyani in September, the total precipitation amount reaches 54 mm (2.1 in) over a span of 8 days.

September Precipitation Trends in Strumyani

The chart displays monthly precipitation patterns in Strumyani, 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 Strumyani, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8574119961101499672547376129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Strumyani

In Strumyani in September, humidity is 57%. With an average temperature of 15°C (59°F), this humidity feels like a refreshing embrace, making it comfortable for traveling while adding a light dampness that keeps the air feeling vibrant and alive.

September Average Humidity in Strumyani

This chart illustrates the average monthly humidity levels in Strumyani, 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 Strumyani 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 Strumyani

In Strumyani 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 Strumyani.

Maximum UV Index Levels in Strumyani for September

The chart shows the monthly maximum UV Index (UVI) for Strumyani 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 Strumyani typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec247810111098642
Data source: Strumyani 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 Strumyani Compares to Other Months

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

This table compares monthly weather conditions in Strumyani, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)85 mm (3.3 inches)88%low
February Weather1°C (34°F)74 mm (2.9 inches)83%moderate
March Weather3°C (38°F)119 mm (4.7 inches)81%high
April Weather8°C (46°F)96 mm (3.8 inches)71%very high
May Weather12°C (54°F)110 mm (4.3 inches)74%very high
June Weather16°C (60°F)149 mm (5.9 inches)63%extreme
July Weather18°C (65°F)96 mm (3.8 inches)60%very high
August Weather19°C (66°F)72 mm (2.8 inches)47%very high
September Weather15°C (59°F)54 mm (2.1 inches)57%very high
October Weather10°C (50°F)73 mm (2.9 inches)76%high
November Weather5°C (42°F)76 mm (3.0 inches)85%moderate
December Weather1°C (34°F)129 mm (5.1 inches)87%low

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