nomadseason

September Weather in Cisna, Poland

Last updated: August 27, 2025

In September, the average temperature in Cisna, Poland hovers around 13°C (56°F). Visitors can expect a range of temperatures, with a minimum of -1°C (31°F) and a maximum of 27°C (81°F). During this month, precipitation reaches 98 mm (3.9 in) over about 12 days, accompanied by an average humidity of 69%.

September Temperature in Cisna

In September in Cisna, the average temperature is 13°C (56°F). Maximum temperatures can reach 27°C (81°F), while the minimum can drop as low as -1°C (31°F). This wide range of temperatures makes Cisna an ideal destination for travelers looking to experience both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Cisna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cisna, September typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec263036465463646456484031
Data source: Temperature data for Cisna generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Cisna

In Cisna in September, the precipitation amount is 98 mm (3.9 in) over the course of 12 days.

September Precipitation Trends in Cisna

The chart displays monthly precipitation patterns in Cisna, 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 Cisna, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5978617114212914911198826598
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Cisna

In Cisna in September humidity is 69%. With an average temperature of 13°C (56°F), this humidity feels like a cool and damp embrace, which might make traveling somewhat uncomfortable as the air weighs down on you, adding to the chill and making your clothes cling.

September Average Humidity in Cisna

This chart illustrates the average monthly humidity levels in Cisna, 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 Cisna is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%88%86%77%69%69%63%59%69%85%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cisna

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

Maximum UV Index Levels in Cisna for September

The chart shows the monthly maximum UV Index (UVI) for Cisna 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 Cisna typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235679876421
Data source: Cisna 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 Cisna Compares to Other Months

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

This table compares monthly weather conditions in Cisna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)59 mm (2.3 inches)91%low
February Weather-1°C (30°F)78 mm (3.1 inches)88%moderate
March Weather2°C (36°F)61 mm (2.4 inches)86%moderate
April Weather8°C (46°F)71 mm (2.8 inches)77%high
May Weather12°C (54°F)142 mm (5.6 inches)69%high
June Weather17°C (63°F)129 mm (5.1 inches)69%very high
July Weather18°C (64°F)149 mm (5.9 inches)63%very high
August Weather18°C (65°F)111 mm (4.4 inches)59%high
September Weather13°C (56°F)98 mm (3.9 inches)69%high
October Weather9°C (48°F)82 mm (3.2 inches)85%moderate
November Weather4°C (40°F)65 mm (2.6 inches)90%low
December Weather-1°C (31°F)98 mm (3.9 inches)91%low

Compare Cisna's Climate with Cities Worldwide