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September Weather in Sarnow, Poland

Last updated: August 27, 2025

In Sarnow, Poland, the average temperature in September hovers around 15°C (59°F). However, you can expect a minimum temperature of 1°C (35°F) and a maximum reaching 30°C (86°F). Be prepared for some rain, with 74 mm (2.9 in) of precipitation spread over 12 days. The air tends to be quite humid, averaging 68% throughout the month.

September Temperature in Sarnow

In September in Sarnow, 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 Sarnow an ideal destination for travelers seeking a mix of mild weather and the opportunity for outdoor activities.

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

The chart illustrates September temperature patterns in Sarnow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sarnow, 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).
JanFebMarAprMayJunJulAugSepOctNovDec303238485768686759504134
Data source: Temperature data for Sarnow 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 Sarnow

In Sarnow in September, the precipitation amount is 74 mm (2.9 in) over a span of 12 days.

September Precipitation Trends in Sarnow

The chart displays monthly precipitation patterns in Sarnow, 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 Sarnow, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec414438467471859974693653
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sarnow

In Sarnow 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 Sarnow

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

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

Maximum UV Index Levels in Sarnow for September

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

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

This table compares monthly weather conditions in Sarnow, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)41 mm (1.6 inches)91%low
February Weather0°C (33°F)44 mm (1.7 inches)89%low
March Weather3°C (38°F)38 mm (1.5 inches)86%moderate
April Weather9°C (48°F)46 mm (1.8 inches)76%moderate
May Weather14°C (57°F)74 mm (2.9 inches)58%high
June Weather20°C (68°F)71 mm (2.8 inches)56%very high
July Weather20°C (68°F)85 mm (3.3 inches)56%very high
August Weather20°C (68°F)99 mm (3.9 inches)55%high
September Weather15°C (59°F)74 mm (2.9 inches)68%high
October Weather10°C (50°F)69 mm (2.7 inches)84%moderate
November Weather5°C (42°F)36 mm (1.4 inches)89%low
December Weather1°C (34°F)53 mm (2.1 inches)91%low

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