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September Weather in Plonsk, Poland

Last updated: August 27, 2025

In September, the average temperature in Plonsk, Poland is a comfortable 15°C (59°F). You can expect a minimum of 2°C (36°F) and a maximum of 31°C (88°F). With an average precipitation of 77 mm (3.0 in) over 12 days, it's wise to prepare for some rain. Additionally, the air exhibits an average humidity of 71%, making the atmosphere feel pleasantly fresh.

September Temperature in Plonsk

In September in Plonsk, the average temperature is 15°C (59°F). Maximum temperatures can reach 31°C (88°F), while the minimum can drop to as low as 2°C (36°F). It's a great time to visit for those who enjoy mild weather with the possibility of warmer days, but be sure to pack layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Plonsk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plonsk, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec313339485667676759504235
Data source: Temperature data for Plonsk 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 Plonsk

In Plonsk in September, the precipitation amount is 77 mm (3.0 in) spread over 12 days.

September Precipitation Trends in Plonsk

The chart displays monthly precipitation patterns in Plonsk, 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 Plonsk, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec404439348266708477643248
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Plonsk

In Plonsk in September humidity is 71%. With an average temperature of 15°C (59°F), this humidity feels like a damp embrace, making outdoor activities slightly uncomfortable and encouraging travelers to seek shade or indoor attractions to escape the muggy air.

September Average Humidity in Plonsk

This chart illustrates the average monthly humidity levels in Plonsk, 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 Plonsk is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%87%76%58%56%59%60%71%86%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Plonsk

In Plonsk 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 Plonsk.

Maximum UV Index Levels in Plonsk for September

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

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

This table compares monthly weather conditions in Plonsk, 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)92%low
February Weather1°C (33°F)44 mm (1.7 inches)90%low
March Weather4°C (39°F)39 mm (1.5 inches)87%moderate
April Weather9°C (48°F)34 mm (1.3 inches)76%moderate
May Weather14°C (57°F)82 mm (3.2 inches)58%high
June Weather19°C (67°F)66 mm (2.6 inches)56%very high
July Weather20°C (68°F)70 mm (2.8 inches)59%very high
August Weather20°C (68°F)84 mm (3.3 inches)60%high
September Weather15°C (59°F)77 mm (3.0 inches)71%moderate
October Weather10°C (51°F)64 mm (2.5 inches)86%moderate
November Weather5°C (42°F)32 mm (1.3 inches)90%low
December Weather1°C (35°F)48 mm (1.9 inches)93%low

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