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September Weather in Slawno, Poland

Last updated: August 27, 2025

In September, the average temperature in Slawno, Poland hovers around 15°C (59°F), with a minimum dipping to 1°C (34°F) and a maximum reaching 30°C (86°F). Expect about 81 mm (3.2 in) of precipitation spread over 12 days, contributing to an average humidity level of 68%. Stay prepared for a mix of weather as you experience the charm of Slawno!

September Temperature in Slawno

In September in Slawno, the average temperature is 15°C (59°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 1°C (34°F). Make sure to pack layers to enjoy a comfortable and versatile trip!

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

The chart illustrates September temperature patterns in Slawno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slawno, 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 (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec313339485767686759514235
Data source: Temperature data for Slawno 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 Slawno

In Slawno in September, the precipitation amount is 81 mm (3.2 in) over a span of 12 days.

September Precipitation Trends in Slawno

The chart displays monthly precipitation patterns in Slawno, 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 Slawno, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec404641478467839181683451
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slawno

In Slawno 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 Slawno

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

In Slawno 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 Slawno, you can refer to this Hourly UV Index in Slawno.

Maximum UV Index Levels in Slawno for September

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

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

This table compares monthly weather conditions in Slawno, 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 (33°F)46 mm (1.8 inches)89%low
March Weather4°C (39°F)41 mm (1.6 inches)86%moderate
April Weather9°C (48°F)47 mm (1.8 inches)76%moderate
May Weather14°C (57°F)84 mm (3.3 inches)58%high
June Weather19°C (67°F)67 mm (2.6 inches)56%very high
July Weather20°C (68°F)83 mm (3.3 inches)56%very high
August Weather20°C (68°F)91 mm (3.6 inches)55%high
September Weather15°C (59°F)81 mm (3.2 inches)68%high
October Weather10°C (51°F)68 mm (2.7 inches)84%moderate
November Weather5°C (42°F)34 mm (1.3 inches)89%low
December Weather1°C (35°F)51 mm (2.0 inches)91%low

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