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September Weather in Biala, Poland

Last updated: August 27, 2025

In Biala, Poland, the average temperature in September hovers around 15°C (59°F). Expect a minimum of 3°C (37°F) and a maximum of 31°C (89°F). During this time, you can anticipate around 80 mm (3.2 in) of precipitation spread over 12 days, with an average humidity of 75%.

September Temperature in Biala

In September in Biala, the average temperature is 15°C (59°F). The maximum can reach 31°C (89°F) while the minimum can be as low as 3°C (37°F). It's advisable to pack both light clothing for the warm days and warmer layers for the cool evenings when traveling during this time.

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

The chart illustrates September temperature patterns in Biala, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Biala, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (89°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323339485666676759504235
Data source: Temperature data for Biala 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 Biala

In Biala in September, the precipitation amount is 80 mm (3.2 in) over a span of 12 days.

September Precipitation Trends in Biala

The chart displays monthly precipitation patterns in Biala, 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 Biala, September typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec404540358269747880633146
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Biala

In Biala in September, humidity is 75%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making it feel more oppressive than refreshing, which can be a challenge for travelers seeking comfort while exploring the area.

September Average Humidity in Biala

This chart illustrates the average monthly humidity levels in Biala, 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 Biala is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%79%63%61%63%65%75%85%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Biala

In Biala in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Biala.

Maximum UV Index Levels in Biala for September

The chart shows the monthly maximum UV Index (UVI) for Biala 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 Biala typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568875321
Data source: Biala 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 Biala Compares to Other Months

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

This table compares monthly weather conditions in Biala, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)40 mm (1.6 inches)91%low
February Weather1°C (34°F)45 mm (1.8 inches)90%low
March Weather4°C (39°F)40 mm (1.6 inches)87%moderate
April Weather9°C (48°F)35 mm (1.4 inches)79%moderate
May Weather13°C (56°F)82 mm (3.2 inches)63%high
June Weather19°C (67°F)69 mm (2.7 inches)61%very high
July Weather20°C (67°F)74 mm (2.9 inches)63%very high
August Weather20°C (68°F)78 mm (3.1 inches)65%high
September Weather15°C (59°F)80 mm (3.2 inches)75%moderate
October Weather10°C (51°F)63 mm (2.5 inches)85%moderate
November Weather5°C (42°F)31 mm (1.2 inches)90%low
December Weather2°C (35°F)46 mm (1.8 inches)93%low

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