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September Weather in Jantar, Poland

Last updated: August 27, 2025

The average temperature in Jantar, Poland during September hovers around 15°C (60°F), with minimums dropping to 7°C (44°F) and maximums reaching up to 30°C (86°F). Expect about 78 mm (3.1 in) of precipitation spread over 13 days, and a notable average humidity of 81%, creating a lush, vibrant atmosphere.

September Temperature in Jantar

In September in Jantar, the average temperature is 15°C (60°F). Maximums can reach 30°C (86°F), and minimums can be as low as 7°C (44°F). This makes it an ideal time for travelers to enjoy pleasant weather while exploring the sights.

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

The chart illustrates September temperature patterns in Jantar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jantar, September typically has an average temperature of 15°C (60°F), with highs reaching up to 30°C (86°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec343438465464666660524436
Data source: Temperature data for Jantar 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 Jantar

In Jantar in September, the precipitation amount is 78 mm (3.1 in) spread over 13 days.

September Precipitation Trends in Jantar

The chart displays monthly precipitation patterns in Jantar, 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 Jantar, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec514145386768996878825564
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jantar

In Jantar in September, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

September Average Humidity in Jantar

This chart illustrates the average monthly humidity levels in Jantar, 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 Jantar is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%84%77%76%76%76%81%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jantar

In Jantar 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 Jantar.

Maximum UV Index Levels in Jantar for September

The chart shows the monthly maximum UV Index (UVI) for Jantar 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 Jantar typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765311
Data source: Jantar 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 Jantar Compares to Other Months

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

This table compares monthly weather conditions in Jantar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)51 mm (2.0 inches)89%low
February Weather1°C (34°F)41 mm (1.6 inches)89%low
March Weather3°C (38°F)45 mm (1.8 inches)88%moderate
April Weather8°C (46°F)38 mm (1.5 inches)84%moderate
May Weather12°C (54°F)67 mm (2.6 inches)76%high
June Weather18°C (65°F)68 mm (2.7 inches)76%high
July Weather19°C (66°F)99 mm (3.9 inches)76%high
August Weather19°C (67°F)68 mm (2.7 inches)76%high
September Weather15°C (60°F)78 mm (3.1 inches)81%moderate
October Weather11°C (52°F)82 mm (3.2 inches)86%moderate
November Weather7°C (44°F)55 mm (2.2 inches)89%low
December Weather2°C (37°F)64 mm (2.5 inches)89%low

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