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September Weather in Promna, Poland

Last updated: August 27, 2025

In Promna, Poland, the average temperature in September hovers around 15°C (59°F). Expect a minimum dip to 1°C (35°F) and peaks reaching up to 30°C (86°F). During this time, 79 mm (3.1 in) of precipitation falls over approximately 12 days, contributing to an average humidity of 68%.

September Temperature in Promna

In September in Promna, the average temperature is 15°C (59°F). Maximum temperatures can reach as high as 30°C (86°F), while minimum temperatures can dip down to 1°C (35°F). This range makes Promna an ideal destination for travelers seeking a mix of mild weather and the opportunity for outdoor activities.

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

The chart illustrates September temperature patterns in Promna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Promna, September typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (86°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec313339485767686759514235
Data source: Temperature data for Promna 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 Promna

In Promna in September, the precipitation amount is 79 mm (3.1 in) over a period of 12 days.

September Precipitation Trends in Promna

The chart displays monthly precipitation patterns in Promna, 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 Promna, September typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec414640428167859379713350
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Promna

In Promna in September, humidity is 68%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls and sightseeing, but travelers should be prepared for occasional discomfort as the mugginess can dampen outdoor activities.

September Average Humidity in Promna

This chart illustrates the average monthly humidity levels in Promna, 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 Promna is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%76%58%56%56%55%68%84%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Promna

In Promna in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Promna, you can refer to this Hourly UV Index in Promna.

Maximum UV Index Levels in Promna for September

The chart shows the monthly maximum UV Index (UVI) for Promna 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 Promna typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876321
Data source: Promna 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 Promna Compares to Other Months

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

This table compares monthly weather conditions in Promna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)41 mm (1.6 inches)91%low
February Weather1°C (34°F)46 mm (1.8 inches)89%low
March Weather4°C (39°F)40 mm (1.6 inches)86%moderate
April Weather9°C (48°F)42 mm (1.7 inches)76%moderate
May Weather14°C (57°F)80 mm (3.2 inches)58%high
June Weather19°C (67°F)67 mm (2.6 inches)56%very high
July Weather20°C (68°F)85 mm (3.3 inches)56%very high
August Weather20°C (67°F)93 mm (3.6 inches)55%high
September Weather15°C (59°F)79 mm (3.1 inches)68%high
October Weather10°C (51°F)70 mm (2.8 inches)84%moderate
November Weather5°C (42°F)33 mm (1.3 inches)89%low
December Weather2°C (35°F)50 mm (2.0 inches)91%low

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