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September Weather in Swietajno, Poland

Last updated: August 27, 2025

In September, the average temperature in Swietajno, Poland hovers around 14°C (58°F). Expect a range from a cool 2°C (36°F) to a warm 29°C (85°F). Rain may grace the area with an average precipitation of 73 mm (2.9 in) spread over 10 days. With an average humidity level of 71%, be prepared for a pleasantly refreshing atmosphere.

September Temperature in Swietajno

In September in Swietajno, the average temperature is 14°C (58°F), with maximums reaching up to 29°C (85°F) and minimums dipping as low as 2°C (36°F). This mild climate makes Swietajno an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates September temperature patterns in Swietajno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swietajno, September typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (85°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec303137465566666557494133
Data source: Temperature data for Swietajno 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 Swietajno

In Swietajno in September, the precipitation amount is 73 mm (2.9 in) over the course of 10 days.

September Precipitation Trends in Swietajno

The chart displays monthly precipitation patterns in Swietajno, 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 Swietajno, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec414143398466917273633651
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Swietajno

In Swietajno in September humidity is 71%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making it essential for travelers to pack light, breathable clothing and stay hydrated while exploring the sights.

September Average Humidity in Swietajno

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

In Swietajno 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 Swietajno.

Maximum UV Index Levels in Swietajno for September

The chart shows the monthly maximum UV Index (UVI) for Swietajno 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 Swietajno typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568865321
Data source: Swietajno 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 Swietajno Compares to Other Months

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

This table compares monthly weather conditions in Swietajno, 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)92%low
February Weather0°C (32°F)41 mm (1.6 inches)90%low
March Weather3°C (37°F)43 mm (1.7 inches)87%moderate
April Weather8°C (46°F)39 mm (1.5 inches)76%moderate
May Weather13°C (55°F)84 mm (3.3 inches)58%high
June Weather19°C (66°F)66 mm (2.6 inches)56%very high
July Weather19°C (66°F)91 mm (3.6 inches)59%very high
August Weather19°C (66°F)72 mm (2.8 inches)60%high
September Weather14°C (58°F)73 mm (2.9 inches)71%moderate
October Weather9°C (49°F)63 mm (2.5 inches)86%moderate
November Weather5°C (41°F)36 mm (1.4 inches)90%low
December Weather1°C (34°F)51 mm (2.0 inches)93%low

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