September Weather in Postomino, Poland

Last updated: August 27, 2025

In September, the average temperature in Postomino, Poland hovers around 15°C (60°F), with minimums reaching 8°C (46°F) and maximums soaring to 28°C (83°F). Expect an average humidity of 81% coupled with approximately 90 mm (3.5 in) of precipitation over about 17 days. This combination makes for a unique mix of weather, perfect for those who enjoy a mild, slightly rainy atmosphere!

September Temperature in Postomino

In September in Postomino, the average temperature hovers around 15°C (60°F). The maximum can reach as high as 28°C (83°F), while the minimum can drop to a chilly 8°C (46°F). It's a great time to visit for those who enjoy mild weather with a mix of warm and cool days.

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

The chart illustrates September temperature patterns in Postomino, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Postomino, September typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (83°F) and lows dropping to around 8°C (46°F).

Data source: Temperature data for Postomino generated using information from the Copernicus Climate Change Service.

September Precipitation in Postomino

In Postomino in September, the precipitation amount is 90 mm (3.5 in) spread over 17 days.

September Precipitation Trends in Postomino

The chart displays monthly precipitation patterns in Postomino, 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 Postomino, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Postomino

In Postomino 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 Postomino

This chart illustrates the average monthly humidity levels in Postomino, 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 Postomino is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Postomino

In Postomino 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 Postomino.

Maximum UV Index Levels in Postomino for September

The chart shows the monthly maximum UV Index (UVI) for Postomino 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 Postomino typically reaches 5, which falls under the moderate exposure category.

Data source: Postomino 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 Postomino Compares to Other Months

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

This table compares monthly weather conditions in Postomino, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	66 mm (2.6 inches)	87%	low
February Weather	2°C (36°F)	55 mm (2.2 inches)	87%	low
March Weather	3°C (38°F)	58 mm (2.3 inches)	87%	moderate
April Weather	7°C (45°F)	34 mm (1.3 inches)	85%	moderate
May Weather	11°C (53°F)	51 mm (2.0 inches)	81%	high
June Weather	17°C (63°F)	44 mm (1.7 inches)	81%	high
July Weather	18°C (65°F)	103 mm (4.1 inches)	81%	high
August Weather	19°C (66°F)	67 mm (2.6 inches)	80%	high
September Weather	15°C (60°F)	90 mm (3.5 inches)	81%	moderate
October Weather	11°C (53°F)	115 mm (4.5 inches)	84%	moderate
November Weather	7°C (45°F)	76 mm (3.0 inches)	86%	low
December Weather	3°C (38°F)	71 mm (2.8 inches)	85%	low